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Muñoz-Lechuga R, Lino PG, González-Ortegón E. Interspecific, ontogenetic and temporal variations in stable isotopes of small tuna species in the northeast Atlantic Ocean. Isotopes Environ Health Stud 2024; 60:13-31. [PMID: 38127307 DOI: 10.1080/10256016.2023.2289956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/16/2023] [Indexed: 12/23/2023]
Abstract
In order to study the trophic level of small tuna species and their contribution to the carbon flow in pelagic food webs, an analysis of carbon and nitrogen stable isotopes was carried out. The investigation was focused on four small tuna species (Auxis rochei, Auxis thazard, Euthynnus alletteratus and Sarda sarda) commonly harvested in the northeast Atlantic Ocean. The isotope analysis showed how the results for S. sarda are different from the rest of the species analysed, with a higher trophic level, similar to other major tuna species. The greatest niche overlap in δ13C and δ15N occurs among A. rochei, A. thazard and E. alletteratus. Auxis rochei and E. alletteratus showed a size-dependent variability in δ15N, and in δ13C for S. sarda. The small tuna S. sarda exhibits the highest migration rates among various geographical areas in comparison to other small pelagic tunas, and the seasonal variability of isotope values in the area studied can be attributed to the incorporation of larger individuals with a higher lipid content. The results of this work provide new information on the ecological role played by small tuna in food webs, which is more complex and varied than currently thought. This knowledge is essential for a more effective management of fisheries.
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Affiliation(s)
- Rubén Muñoz-Lechuga
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Olhão, Portugal
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Puerto Real, Spain
| | - Pedro G Lino
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Olhão, Portugal
| | - Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía - Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), Puerto Real, Spain
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Nguyen MC, Fotedar R, Pham HD. Effects of dietary hydrolysate supplementation on growth, body composition, hematological responses, and liver histology of juvenile giant trevally (Caranx ignobilis Forsskal, 1775). J Fish Biol 2024; 104:216-226. [PMID: 37800368 DOI: 10.1111/jfb.15580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/07/2023]
Abstract
A feeding study was conducted to investigate how fish protein hydrolysate (FPH) supplementation affected the growth, feed utilization, body composition, and hematology of juvenile giant trevally (Caranx ignobilis Forsskal, 1775). Seven isonitrogenous (52% protein) and isocaloric diets (10% lipid) were formulated, wherein shrimp hydrolysate (SH) and tuna hydrolysate (TH) were used to replace fishmeal at inclusion levels of 0 (control), 30, 60, and 90 g/kg and labeled as control, SH30, SH60, SH90, TH30, TH60, and TH90, respectively. Each diet was fed to triplicate groups of juvenile giant trevally for 8 weeks. The results showed higher final body weight and specific growth rate in fish fed SH30, SH60, TH30, and TH60 than fed control diet. No difference was observed in feed intake, but reduced feed conversion ratio (FCR) was found in fish fed SH30, SH60, TH30, and TH60, demonstrating these diets improved feed utilization. TH90 caused deposition of lipid droplet in the hepatocyte, a sign of liver damage. Total monounsaturated fatty acids, polyunsaturated fatty acids (PUFA), and highly unsaturated fatty acids in fish were not affected by FPH supplementation. Fish fed TH30 showed lower ∑n - 3 PUFA than the fish fed remaining dietary treatments. The elevated serum protein was seen in fish fed control, SH30, SH60, and TH30, demonstrating that these diets were beneficial for the innate immune response in giant trevally. The results indicate that TH and SH could be incorporated into diets of giant trevally at 30-60 g/kg, replacing 7%-13% fishmeal with enhanced growth and health benefits.
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Affiliation(s)
- Minh Chau Nguyen
- School of Science and Engineer, Curtin University Malaysia, Sarawak, Malaysia
- Research Institute for Aquaculture No.3, Nha Trang, Khanh Hoa, Vietnam
| | - Ravi Fotedar
- School of Molecular and Life Sciences, Curtin University, Benley, Western Australia, Australia
| | - Hung Duc Pham
- Institute of Aquaculture, Nha Trang University, Nha Trang, Vietnam
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Meng L, Song Y, Zheng B, Zhao Y, Hong B, Ma M, Wen Z, Miao W, Xu Y. Preparation, identification, activity prediction, and protective effects on IR-HepG2 cells of five novel DPP-IV inhibitory peptides from protein hydrolysate of skipjack tuna dark muscles. Food Funct 2023; 14:10991-11004. [PMID: 38019161 DOI: 10.1039/d3fo02948d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
To produce peptides with high dipeptidyl peptidase IV (DPP-IV) inhibitory activity, neutrase was selected from five proteases (trypsin, neutrase, pepsin, alcalase and flavor protease) with the highest degree of hydrolysis (DH) (18.23 ± 1.08%) and DPP-IV inhibitory rate (53.35 ± 4.02%) to produce protein hydrolysate (NPH) from the dark muscles of skipjack tuna (Katsuwonus pelamis). Then, NPH-1 was isolated from NPH by gel permeation chromatography and found to possess the highest DPP-IV inhibitory rate (65.12 ± 7.94% at 0.5 mg ml-1) in the separated components (including NPH-1, NPH-2, NPH-3 and NPH-4). Subsequently, the available prediction models of tripeptides and tetrapeptides with the DPP-IV inhibitory rate were established using an artificial neural network (ANN). The RMSE (0.56 and 0.33 for the model established through collected tripeptides and tetrapeptides, respectively) and R2 (0.95 and 0.99 for the model established through collected tripeptides and tetrapeptides, respectively) of the ANN model's parameters were within acceptable limits, indicating that this model is available. Next, the ANN model was applied to predict tripeptides and tetrapeptides from the hydrolysate of skipjack tuna dark muscles, and five peptides (Ala-Pro-Pro (APP), Pro-Pro-Pro (PPP), Asp-Pro-Leu-Leu (DPLL), Glu-Ala-Val-Pro (EAVP) and Glu-Ala-Iie-Pro (EAIP)) possessing a noticeable DPP-IV inhibitory rate (with DPP-IV IC50 values of 42.46 ± 5.02, 37.71 ± 9.17, 58.85 ± 14.42, 49.94 ± 6.69 and 57.15 ± 6.13 μM, respectively) were screened from the protein hydrolysate. The above five peptides were proved to effectively promote glucose consumption in the insulin resistant-HepG2 (IR-HepG2) cell model considering that the glucose consumption rates of APP, PPP, DPLL, EAVP and EAIP treatment groups are all more than twice that of the dexamethasone group. Accordingly, mechanistic studies showed that these peptides interacted with PI3K/AKT and AMPK signaling pathways and promoted the phosphorylation of PI3K p110, AKT and AMPK (the protein expressions of PI3K p110, p-AKT and p-AMPK in APP, PPP, DPLL, EAVP and EAIP treatment groups are 1.64-2.22 fold compared with that in the dexamethasone group), thereby enhancing glucose uptake and further alleviating insulin resistance. These findings demonstrated that skipjack tuna dark muscle is a potential DPP-IV inhibitory peptide source, and five DPP-IV inhibitory peptides from its hydrolysate may exert potent anti-diabetic activity. In comparison, PPP may be the most potential active ingredient for healthy food against type 2 diabetes mellitus in the five screened peptides considering synthetically the DPP-IV inhibitory rate, bioavailability and synthesis cost.
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Affiliation(s)
- Lingting Meng
- School of Food and Pharmacy, Zhejiang Ocean University, Zhejiang 316022, China.
| | - Yan Song
- School of Food and Pharmacy, Zhejiang Ocean University, Zhejiang 316022, China.
| | - Bin Zheng
- School of Food and Pharmacy, Zhejiang Ocean University, Zhejiang 316022, China.
| | - Yadong Zhao
- School of Food and Pharmacy, Zhejiang Ocean University, Zhejiang 316022, China.
| | - Bingyuan Hong
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhejiang 316022, China
| | - Mingzhu Ma
- Zhejiang Marine Development Research Institute, Zhejiang 316000, China
| | - Zhengshun Wen
- School of Food and Pharmacy, Zhejiang Ocean University, Zhejiang 316022, China.
| | - Wenhua Miao
- School of Food and Pharmacy, Zhejiang Ocean University, Zhejiang 316022, China.
| | - Yan Xu
- School of Food and Pharmacy, Zhejiang Ocean University, Zhejiang 316022, China.
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Khosinklang W, Kubota S, Riou C, Kaewsatuan P, Molee A, Molee W. Omega-3 meat enrichment and L-FABP, PPARA, and LPL genes expression are modified by the level and period of tuna oil supplementation in slow-growing chickens. J Anim Sci 2023; 101:skad267. [PMID: 37549905 PMCID: PMC10563153 DOI: 10.1093/jas/skad267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023] Open
Abstract
This study proposes a strategy to manipulate the fatty acid (FA) content in slow-growing Korat chicken (KRC) meat using tuna oil (TO). To determine the optimal level and feeding period of TO supplementation, we conducted a study investigating the effects of dietary TO levels and feeding periods on meat quality, omega-3 polyunsaturated fatty acid (n-3 PUFA) composition, and gene expression related to FA metabolism in KRC breast meat. At 3 wk of age, 700 mixed-sex KRC were assigned to seven augmented factorial treatments with a completely randomized design, each consisting of four replicate pens containing 25 chickens per pen. The control group received a corn-soybean-based diet with 4.5% rice bran oil (RBO), while varying amounts of TO (1.5%, 3.0%, or 4.5%) replaced a portion of the RBO content in the experimental diets. The chickens were fed these diets for 3 and 6 wk, respectively, before being slaughtered at 9 wk. Our results indicated no significant interactions between TO levels and feeding periods on the growth performance or meat quality of KRC (P > 0.05). However, the liver fatty acid-binding protein gene (L-FABP, also known as FABP1), responsible for FA transport and accumulation, showed significantly higher expression in the chickens supplemented with 4.5% TO (P < 0.05). The chickens supplemented with 4.5% TO for a longer period (3 to 9 wk of age) exhibited the lowest levels of n-6 PUFA and n-6 to n-3 ratio, along with the highest levels of eicosapentaenoic acid, docosahexaenoic acid, and n-3 PUFA in the breast meat (P < 0.05). However, even a short period of supplementation with 4.5% TO (6 to 9 wk of age) was adequate to enrich slow-growing chicken meat with high levels of n-3 PUFA, as recommended previously. Our findings indicated that even a short period of tuna oil supplementation could lead to desirable levels of omega-3 enrichment in slow-growing chicken meat. This finding has practical implications for the poultry industry, providing insights into optimal supplementation strategies for achieving desired FA profiles without adversely affecting growth performance or meat quality.
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Affiliation(s)
- Wichuta Khosinklang
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Satoshi Kubota
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Cindy Riou
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Pramin Kaewsatuan
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Amonrat Molee
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Wittawat Molee
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
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Zhang J, Yi C, Han J, Ming T, Zhou J, Lu C, Li Y, Wang Z, Su X. Dose effect of high-docosahexaenoic acid tuna oil on dysbiosis in high-fat diet mice. J Sci Food Agric 2022; 102:5531-5543. [PMID: 35368101 DOI: 10.1002/jsfa.11908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/15/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The health benefits of tuna oil, which is different from the fish oil commonly studied, and its higher docosahexaenoic acid (DHA) content, have attracted much scientific attention in recent years. In this study, prepared tuna oil with higher DHA (HDTO) content was employed. It was the first to integrate microbiome and metabolome from a dose-effect perspective to investigate the influence of HDTO on gut dysbiosis and metabolic disorders in diet-induced obese mice. RESULTS Higher DHA tuna oil was effective in reversing high-fat-diet-induced metabolic disorders and altering the composition and function of gut microbiota, but these effects were not uniformly dose dependent. The flora and metabolites that were targeted to be regulated by HDTO supplementation were Prevotella, Bifidobacterium, Olsenella, glycine, l-aspartate, l-serine, l-valine, l-isoleucine, l-threonine, l-tyrosine, glyceric acid, glycerol, butanedioic acid, and citrate, respectively. Functional pathway analysis revealed that alterations in these metabolic biomarkers were associated with six main metabolic pathways: glycine, serine, and threonine metabolism; glycerolipid metabolism; glyoxylate and dicarboxylate metabolism; alanine, aspartate, and glutamate metabolism; aminoacyl-tRNA biosynthesis, and the citrate cycle (TCA cycle). CONCLUSION Various doses of HDTO could attenuate endogenous disorders to varying degrees by regulating multiple perturbed pathways to the normal state. This explicit dose research for novel fish oil with high-DHA will provide a valuable reference for those seeking to exploit its clinical therapeutic potential. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Jing Zhang
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Faculty of Food Science, Zhejiang Pharmaceutical College, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Congmin Yi
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Jiaojiao Han
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Tinghong Ming
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Jun Zhou
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Chenyang Lu
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Ye Li
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Zhonghua Wang
- Shandong beiyou biotechnology Co., Ltd., Weifang, China
| | - Xiurong Su
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
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Nicklisch SCT, Pouv AK, Rees SD, McGrath AP, Chang G, Hamdoun A. Transporter-interfering chemicals inhibit P-glycoprotein of yellowfin tuna (Thunnus albacares). Comp Biochem Physiol C Toxicol Pharmacol 2021; 248:109101. [PMID: 34116183 DOI: 10.1016/j.cbpc.2021.109101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/07/2021] [Accepted: 05/31/2021] [Indexed: 02/08/2023]
Abstract
Marine pollutants bioaccumulate at high trophic levels of marine food webs and are transferred to humans through consumption of apex species. Yellowfin tuna (Thunnus albacares) are marine predators, and one of largest commercial fisheries in the world. Previous studies have shown that yellowfin tuna can accumulate high levels of persistent organic pollutants, including Transporter Interfering Chemicals (TICs), which are chemicals shown to bind to mammalian xenobiotic transporters and interfere with their function. Here, we examined the extent to which these same compounds might interfere with the activity of the yellowfin tuna (Thunnus albacares) ortholog of this transporter. To accomplish this goal we identified, expressed, and functionally assayed tuna ABCB1. The results demonstrated a common mode of vertebrate ABCB1 interaction with TICs that predicts effects across these species, based on high conservation of specific interacting residues. Importantly several TICs showed potent inhibition of Ta-ABCB1, such as the organochlorine pesticides Endrin (EC50 = 1.2 ± 0.2 μM) and Mirex (EC50 = 2.3 ± 0.9 μM). However, unlike the effects observed on mouse ABCB1, low concentrations of the organochlorine pesticide TICs p,p'-DDT and its metabolite p,p'-DDD co-stimulated verapamil-induced Ta-ABCB1 ATPase activity possibly suggesting a low transport activity for these ligands in tuna. These results provide a mechanistic basis for understanding the potential vulnerability of tuna to these ubquitous pollutants.
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Affiliation(s)
- Sascha C T Nicklisch
- Department of Environmental Toxicology, University of California, Davis, Davis, CA 95616, United States of America.
| | - Amara K Pouv
- Department of Environmental Toxicology, University of California, Davis, Davis, CA 95616, United States of America.
| | - Steven D Rees
- Skaggs School of Pharmacy and Pharmaceutical Sciences, 9500 Gilman Drive #0754, University of California, San Diego, La Jolla, CA 92093, United States of America.
| | - Aaron P McGrath
- Skaggs School of Pharmacy and Pharmaceutical Sciences, 9500 Gilman Drive #0754, University of California, San Diego, La Jolla, CA 92093, United States of America
| | - Geoffrey Chang
- Skaggs School of Pharmacy and Pharmaceutical Sciences, 9500 Gilman Drive #0754, University of California, San Diego, La Jolla, CA 92093, United States of America.
| | - Amro Hamdoun
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0202, United States of America.
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Devita L, Nurilmala M, Lioe HN, Suhartono MT. Chemical and Antioxidant Characteristics of Skin-Derived Collagen Obtained by Acid-Enzymatic Hydrolysis of Bigeye Tuna ( Thunnus obesus). Mar Drugs 2021; 19:222. [PMID: 33923409 PMCID: PMC8072911 DOI: 10.3390/md19040222] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/09/2021] [Accepted: 04/14/2021] [Indexed: 12/15/2022] Open
Abstract
The utilization of bigeye tuna skin as a source of collagen has been increasing the value of these skins. In this study, the quality of the skin was studied first. The skin after 14 h freeze-drying showed a high protein level (65.42% ± 0.06%, db), no histamine and a lack of heavy metals. The collagens were extracted through acid and acid-enzymatic methods. The enzymes used were bromelain, papain, pepsin, and trypsin. The two highest-yield collagens were pepsin-soluble collagen (PSC) and bromelain-soluble collagen (BSC). Both were type I collagen, based on SDS-PAGE and FTIR analysis. They dissolved very well in dimethyl sulfoxide and distilled water. The pH ranges were 4.60-4.70 and 4.30-4.40 for PSC and BSC, respectively. PSC and BSC were free from As, Cd, Co, Cr, Cu, and Pb. They showed antioxidant activities, as determined by the DPPH method and the reducing power method. In conclusion, bigeye tuna skin shows good potential as an alternative source of mammalian collagen. Although further work is still required, PSC and BSC showed the potential to be further used as antioxidant compounds in food applications. Other biological tests of these collagens might also lead to other health applications.
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Affiliation(s)
- Liza Devita
- Department of Food Science and Technology, Faculty of Agricultural Engineering and Technology, Bogor Agricultural University, Bogor 16680, Indonesia; (L.D.); (H.N.L.)
- The Ministry of Agriculture Republic Indonesia, Jakarta 12550, Indonesia
| | - Mala Nurilmala
- Department of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, Bogor 16680, Indonesia;
| | - Hanifah Nuryani Lioe
- Department of Food Science and Technology, Faculty of Agricultural Engineering and Technology, Bogor Agricultural University, Bogor 16680, Indonesia; (L.D.); (H.N.L.)
| | - Maggy T. Suhartono
- Department of Food Science and Technology, Faculty of Agricultural Engineering and Technology, Bogor Agricultural University, Bogor 16680, Indonesia; (L.D.); (H.N.L.)
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Xiang XW, Zhou XL, Wang R, Shu CH, Zhou YF, Ying XG, Zheng B. Protective Effect of Tuna Bioactive Peptide on Dextran Sulfate Sodium-Induced Colitis in Mice. Mar Drugs 2021; 19:md19030127. [PMID: 33652919 PMCID: PMC7996728 DOI: 10.3390/md19030127] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/15/2022] Open
Abstract
Bioactive peptides isolated from marine organisms have shown to have potential anti-inflammatory effects. This study aimed to investigate the intestinal protection effect of low molecular peptides (Mw < 1 kDa) produced through enzymatic hydrolysis of tuna processing waste (tuna bioactive peptides (TBP)) on dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) in BALB/c mice. Here, we randomly divided twenty-four male BALB/c mice into four groups: (i) normal (untreated), (ii) DSS-induced model colitis, (iii) low dose TBP+DSS-treated (200 mg/kg/d), and (iv) high dose TBP+DSS-treated groups (500 mg/kg/d). The results showed that TBP significantly reduced mice weight loss and improved morphological and pathological characteristics of colon tissues. In addition, it increased the activities of antioxidant enzymes (SOD and GSH-Px) and decreased inflammatory factors (LPS, IL-6, and TNF-α) expression. TBP increased the gene expression levels of some tight junction (TJ) proteins. Moreover, TBP increased the short-chain fatty acids (SCFAs) levels and the diversity and imbalance of intestinal flora. Therefore, TBP plays some protective roles in the intestinal tract by enhancing antioxidant and anti-inflammatory abilities of the body, improving the intestinal barrier and metabolic abnormalities, and adjusting intestinal flora imbalance.
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Affiliation(s)
- Xing-Wei Xiang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China; (X.-W.X.); (R.W.)
- Key Laboratory of Marine Biological Resources Innovation and Development of Zhejiang Province, Hangzhou 310014, Zhejiang, China
| | - Xiao-Ling Zhou
- Food and Pharmacy College, Zhejiang Ocean University, Zhoushan 316000, Zhejiang, China; (X.-L.Z.); (C.-H.S.); (X.-G.Y.)
| | - Rui Wang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China; (X.-W.X.); (R.W.)
| | - Cong-Han Shu
- Food and Pharmacy College, Zhejiang Ocean University, Zhoushan 316000, Zhejiang, China; (X.-L.Z.); (C.-H.S.); (X.-G.Y.)
| | - Yu-Fang Zhou
- Zhejiang Marine Development Research Institute, Zhoushan 316000, Zhejiang, China
- Correspondence: (Y.-F.Z.); (B.Z.); Tel.: +86-13515806308 (B.Z.)
| | - Xiao-Guo Ying
- Food and Pharmacy College, Zhejiang Ocean University, Zhoushan 316000, Zhejiang, China; (X.-L.Z.); (C.-H.S.); (X.-G.Y.)
| | - Bin Zheng
- Food and Pharmacy College, Zhejiang Ocean University, Zhoushan 316000, Zhejiang, China; (X.-L.Z.); (C.-H.S.); (X.-G.Y.)
- Correspondence: (Y.-F.Z.); (B.Z.); Tel.: +86-13515806308 (B.Z.)
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9
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Zhong H, Zhang Y, Deng L, Zhao M, Tang J, Zhang H, Feng F, Wang J. Exploring the potential of novel xanthine oxidase inhibitory peptide (ACECD) derived from Skipjack tuna hydrolysates using affinity-ultrafiltration coupled with HPLC-MALDI-TOF/TOF-MS. Food Chem 2021; 347:129068. [PMID: 33486365 DOI: 10.1016/j.foodchem.2021.129068] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/18/2020] [Accepted: 01/06/2021] [Indexed: 01/08/2023]
Abstract
This study aimed to isolate and investigate the potential of the peptide alanine-cysteine-glutamic acid-cysteine-aspartic acid (ACECD), a novel xanthine oxidase inhibitory (XODI) peptide derived from Skipjack tuna hydrolysate (HS). Ultrafiltration membranes were used to obtain HS-based peptides as successive ultrafiltration fractions (of decreasing molecular weight) of UF-1, UF-2, UF-3, and UF-4. Their antioxidant and xanthine oxidase (XOD) inhibitory activities were determined and further characterized by affinity-ultrafiltration coupled with HPLC-MALDI-TOF/TOF-MS and in silico techniques. The results showed that peptides with a molecular weight (MW) cutoff of 600-1000 Da (UF-2) exhibited the highest antioxidant and XODI activities. A novel XODI peptide (ACECD) was identified with an IC50 value of 13.40 mmol/L, which decreased by 21.24% and 51.40% compared to those of UF-2 and HS, respectively. Molecular docking indicated that ACECD inserted into the active center of Mo atoms in XOD, which led to competitive attachment with XOD and caused inhibition. The study findings indicated that the ACECD peptide could be useful as a safe XODI substance to alleviate hyperuricemia.
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Affiliation(s)
- Hao Zhong
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yipeng Zhang
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Lingli Deng
- College of Biological Science and Technology, Hubei Minzu University, Enshi 445000, China
| | - Minjie Zhao
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Jun Tang
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Hui Zhang
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Fengqin Feng
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
| | - Jing Wang
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
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10
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Blanco E, Reglero P, Ortega A, Folkvord A, de la Gándara F, Hernández de Rojas A, Moyano M. First estimates of metabolic rate in Atlantic bluefin tuna larvae. J Fish Biol 2020; 97:1296-1305. [PMID: 32710475 DOI: 10.1111/jfb.14473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/13/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Atlantic bluefin tuna is an iconic scombrid species with a high commercial and ecological value. Despite their importance, many physiological aspects, especially during the larval stages, are still unknown. Metabolic rates are one of the understudied aspects in scombrid larvae, likely due to challenges associated to larval handling before and during respirometry trials. Gaining reliable estimates of metabolic rates is essential to understand how larvae balance their high growth needs and activity and other physiological functions, which can be very useful for fisheries ecology and aquaculture. This is the first study to (a) estimate the relationship between routine metabolic rate (RMR) and larval dry weight (DW) (mass scaling exponent) at a constant temperature of 26°C, (b) measure the RMR under light and darkness and (c) test whether the interindividual differences in the RMR are related to larval nutritional status (RNA/DNA and DNA/DW). The RMR scaled nearly isometrically with body size (b = 0.99, 0.60-31.56 mg DW) in contrast to the allometric relationship observed in most fish larvae (average b = 0.87). The results show no significant differences in larval RMR under light and darkness, suggesting similar larval activity levels in both conditions. The size explained most of the variability in RMR (97%), and nutritional condition was unrelated to the interindividual differences in routine metabolism. This is the first study to report the metabolic rates of Atlantic bluefin tuna larvae and discuss the challenges of performing bioenergetic studies with early life stages of scombrids.
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Affiliation(s)
- Edurne Blanco
- Instituto Español de Oceanografía, Centre Oceanogràfic de les Balears, Ecosystem Oceanography Group (GRECO), Palma de Mallorca, Spain
- Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, Murcia, Spain
| | - Patricia Reglero
- Instituto Español de Oceanografía, Centre Oceanogràfic de les Balears, Ecosystem Oceanography Group (GRECO), Palma de Mallorca, Spain
| | - Aurelio Ortega
- Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, Murcia, Spain
| | - Arild Folkvord
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Institute of Marine Research, Bergen, Norway
| | | | | | - Marta Moyano
- Institute of Hydrobiology and Fisheries Science, University of Hamburg, Hamburg, Germany
- Center of Coastal Research, University of Agder, Kristiansand, Norway
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11
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Moura Reis Manhães B, de Souza Picaluga A, Bisi TL, de Freitas Azevedo A, Torres JPM, Malm O, Lailson-Brito J. Tracking mercury in the southwestern Atlantic Ocean: the use of tuna and tuna-like species as indicators of bioavailability. Environ Sci Pollut Res Int 2020; 27:6813-6823. [PMID: 31873906 DOI: 10.1007/s11356-019-07275-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Mercury is a trace element that is potentially dangerous due its high toxicity and tendency to bioaccumulate in organisms. Currently, high mercury concentrations are seen in the environment especially due climate changes. Studies regarding mercury bioavailability in the southwestern Atlantic Ocean using tuna and tuna-like species are rare. The aim of the present study was to use tuna and tuna-like species (Thunnus atlanticus, Thunnus albacares, Katsuwonus pelamis, Euthynnus alletteratus, Coryphaena hippurus and Sarda sarda) as indicators of the availability of total mercury (THg) in oceanic food webs of the southwestern Atlantic Ocean. THg concentrations varied significantly among species for both muscle and liver (Kruskal-Wallis test; H5,130 = 52.7; p < 0.05; H5,130 = 50.1; p < 0.05, respectively). The lowest concentrations were found in C. hippurus (0.008 mg kg-1 wet weight in the muscle and 0.003 mg kg-1 wet weight in the liver), and the highest concentrations were reported in the muscle of T. atlanticus (1.3 mg kg-1 wet weight) and in the liver of S. sarda (2.5 mg kg-1 wet weight). The continued monitoring of tuna and tuna-like species is necessary to assist in their conservation since tuna can be sentinels of mercury pollution.
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Affiliation(s)
- Bárbara Moura Reis Manhães
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profa. Izabel Gurgel" (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, sala 4002, 20550-013, Maracanã, Rio de Janeiro, RJ, Brazil.
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373 Sala G0-61, Rio de Janeiro, RJ, 21941-902, Brazil.
| | - Alice de Souza Picaluga
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profa. Izabel Gurgel" (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, sala 4002, 20550-013, Maracanã, Rio de Janeiro, RJ, Brazil
| | - Tatiana Lemos Bisi
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profa. Izabel Gurgel" (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, sala 4002, 20550-013, Maracanã, Rio de Janeiro, RJ, Brazil
| | - Alexandre de Freitas Azevedo
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profa. Izabel Gurgel" (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, sala 4002, 20550-013, Maracanã, Rio de Janeiro, RJ, Brazil
| | - João Paulo Machado Torres
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373 Sala G0-61, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Olaf Malm
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373 Sala G0-61, Rio de Janeiro, RJ, 21941-902, Brazil
| | - José Lailson-Brito
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profa. Izabel Gurgel" (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, sala 4002, 20550-013, Maracanã, Rio de Janeiro, RJ, Brazil
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12
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Wickrama-Arachchige AUK, Hirabayashi T, Imai Y, Guruge KS, Dharmaratne TS, Ohura T. Accumulation of halogenated polycyclic aromatic hydrocarbons by different tuna species, determined by high-resolution gas chromatography Orbitrap mass spectrometry. Environ Pollut 2020; 256:113487. [PMID: 31679876 DOI: 10.1016/j.envpol.2019.113487] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/30/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
Halogenated polycyclic aromatic hydrocarbon (HPAH) concentrations in tissues from three tuna species Thunnus albacares (yellowfin tuna), Katsuwonus pelamis (skipjack tuna), and Auxis thazard (frigate tuna) were determined by high-resolution gas chromatography Orbitrap mass spectrometry. The tuna samples were collected from the Indian Ocean. The instrument conditions gave high mass accuracy at 0.9 m/z isolation width of the mass filter and a mass error of <±1.0 ppm for many HPAHs. A total of 29 of the 30 targets chlorinated PAHs (ClPAHs) and 20 of the 21 targets brominated PAHs (BrPAHs) were detected in the tuna muscle samples. The mean total ClPAH, BrPAH and PAH concentrations for tuna were 127.2, 156.6 and 682.8 ng/g lipid weight, respectively. The mean total ClPAH and BrPAH concentrations (ng/g lipid weight) in the tuna were considerably lower than that of PAH concentrations. The mean total ClPAH, BrPAH and PAH concentrations in T. albacares respectively were 185.8, 249.2 and 784.1 ng/g lipid weight, irrespective of the body sizes. The mean total ClPAH, BrPAH and PAH concentrations in K. pelamis respectively were 45.1, 24.8 and 555.6 ng/g lipid weight. The mean total ClPAH, BrPAH and PAH concentrations in A. thazard respectively were 34.09, 4.73 and 433.24 ng/g lipid weight. The total ClPAH concentrations and body weights significantly positively correlated for T. albacares. The mean total ClPAH concentration in white muscles was significantly higher (p < 0.05) for large than for small T. albacares. This suggests ClPAHs could bioaccumulate in T. albacares, possibly because they are poorly metabolized. The chlorinated phenanthrene and pyrene concentrations indicated tuna accumulate these compounds increasingly effectively as the tuna grow. This was the first time large numbers of HPAHs were found in biological samples. HPAHs may adversely affect the health of humans consuming tuna.
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Affiliation(s)
| | - Takuma Hirabayashi
- Graduate School of Agriculture, Meijo University, 1-501 Shiogamaguchi, Nagoya 468-8502, Japan
| | - Yuki Imai
- Graduate School of Agriculture, Meijo University, 1-501 Shiogamaguchi, Nagoya 468-8502, Japan
| | - Keerthi S Guruge
- Pathology and Pathophysiology Research Division, National Institute of Animal Health, National Agriculture and Food Research Organization, 3-1-5 Kannondai, Tsukuba 305-0856, Japan
| | - Tilak S Dharmaratne
- Ocean University of Sri Lanka, No. 15, Crow Island, Mattakkuliya, Colombo 15, CO 01500, Sri Lanka
| | - Takeshi Ohura
- Graduate School of Agriculture, Meijo University, 1-501 Shiogamaguchi, Nagoya 468-8502, Japan.
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13
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Zhang J, Tao N, Zhao Y, Wang X, Wang M. Comparison of the Fatty Acid and Triglyceride Profiles of Big Eye Tuna ( Thunnus obesus), Atlantic salmon ( Salmo salar) and Bighead Carp ( Aristichthysnobilis) Heads. Molecules 2019; 24:molecules24213983. [PMID: 31689924 PMCID: PMC6864674 DOI: 10.3390/molecules24213983] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/02/2019] [Accepted: 11/02/2019] [Indexed: 11/24/2022] Open
Abstract
Big eye tuna (Thunnus obesus), Atlantic salmon (Salmo salar) and bighead carp (Aristichthys nobilis) are three representative marine and fresh water fishes. In this study, the content of total lipids (TL), triglyceride (TG) fraction, and the fatty acid profiles in the corresponding fish heads were analyzed. Meanwhile, their complicated TG molecular species were further characterized. The results showed that TG was the major lipid in these three fish heads (60.58–86.69%). Compared with other two fish heads, big eye tuna head was the most abundant in polyunsaturated fatty acids, among which eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) accounted for 64.29% and 32.77% in the TL and TG fraction, respectively. It is also worth noting that EPA+DHA/total fatty acid (TFA) value of TL and TG fraction from bighead carp head showed no significant difference with Atlantic salmon head, a typical marine fish. There were 146 TG molecules detected in big eye tuna head, 90 in Atlantic salmon and 87 in bighead carp heads. DHA or EPA accounted for 56.12%, 22.88%, and 5.46% of the total TG molecules in these three fish heads, respectively. According to principal component analysis, orthogonal projection to latent structures-discriminant analysis and the constructed heat map, the three samples could be completely differentiated based on their TG molecule fingerprints. This study is the first to compare marine and fresh water fish from the perspective of their heads’ fatty acid and TG molecule profiles.
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Affiliation(s)
- Jing Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Ningping Tao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Yueliang Zhao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Xichang Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Mingfu Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
- Food and Nutritional Science Program, School of Biological Sciences, The University of Hong Kong, Hong Kong 999077, China.
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14
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Qiu YT, Wang YM, Yang XR, Zhao YQ, Chi CF, Wang B. Gelatin and Antioxidant Peptides from Gelatin Hydrolysate of Skipjack Tuna ( Katsuwonus pelamis) Scales: Preparation, Identification and Activity Evaluation. Mar Drugs 2019; 17:md17100565. [PMID: 31623339 PMCID: PMC6836156 DOI: 10.3390/md17100565] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/28/2019] [Accepted: 10/01/2019] [Indexed: 12/11/2022] Open
Abstract
For full use of fish by-products, scale gelatin (TG) and antioxidant peptides (APs) of skipjack tuna (Katsuwonus pelamis) were prepared, and their properties were characterized using an amino acid analyzer, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), Fourier transform infrared spectroscopy (FTIR), electrospray ionization mass spectrometers (ESI-MS), and radical scavenging assays. The results indicate that TG with a yield of 3.46 ± 0.27% contained Gly (327.9 ± 5.2 residues/1000 residues) as the major amino acid and its imino acid content was 196.1 residues/1000 residues. The structure of TG was more unstable than that of type I collagen from scales of skipjack tuna (TC) and TG was more suitable for preparation of hydrolysate by protease than mammalian gelatins. Therefore, TG was separately hydrolyzed under five proteases (pepsin, papain, trypsin, neutrase, and alcalase) and ten APs (TGP1–TGP10) were isolated from the alcalase-hydrolysate. Among them, TGP5, TGP7, and TGP9 with high antioxidant activity were identified as His-Gly-Pro-Hyp-Gly-Glu (TGP5), Asp-Gly-Pro-Lys-Gly-His (TGP7) and Met-Leu-Gly-Pro-Phe-Gly-Pro-Ser (TGP9), respectively. Furthermore, TGP5, TGP7, and TGP9 exhibited a high radical scavenging capability on 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical (EC50 values of 1.34, 0.54, and 0.67 mg/mL, respectively), hydroxyl radical (EC50 values of 1.03, 0.41, and 0.74 mg/mL, respectively), and superoxide anion radical (EC50 values of 1.19, 0.71, and 1.59 mg/mL, respectively). These results suggest that three APs (TGP5, TGP7, and TGP9), especially TGP7, have a strong antioxidant activity and could act as potential antioxidant ingredients applied in functional products.
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Affiliation(s)
- Yi-Ting Qiu
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Yu-Mei Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Xiu-Rong Yang
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Yu-Qin Zhao
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Chang-Feng Chi
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Bin Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
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15
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Hiraoka Y, Okochi Y, Ohshimo S, Shimose T, Ashida H, Sato T, Ando Y. Lipid and fatty acid dynamics by maternal Pacific bluefin tuna. PLoS One 2019; 14:e0222824. [PMID: 31553780 PMCID: PMC6760770 DOI: 10.1371/journal.pone.0222824] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/09/2019] [Indexed: 11/19/2022] Open
Abstract
Lipid and fatty acid composition of female Pacific bluefin tuna (PBF, Thunnus orientalis) reproductive and somatic tissues in southwestern North Pacific and Sea of Japan spawning grounds are compared. Total lipid (TL) levels are higher in liver than white muscle tissues. An increased gonadosomatic index (GSI) during the early spawning season coincided with decreased TL. Levels of triacylglycerols (TAG) in PBF liver tissues from the Nansei Islands and Sea of Japan, and white muscle in fishes from the Sea of Japan, decreased during the spawning season, while TAG in ovary tissues did not. Concurrent reductions in TL and increases in GSI early in the spawning season suggest TAG depletion was caused by allocation from liver and white muscle tissues to oocytes, that the liver is one of the important lipid-storage organs in PBF, and this species mostly reliant on capital deposits as a mixed capital-income breeder. Differences of docosahexaenoic acid (DHA) levels between spawning grounds were lower in ovary than in muscle and liver tissues. However, eicosapentaenoic (EPA) and arachidonic acid (ARA) levels that influence egg development and embryo and larval growth are significantly higher in PBF tissues from the Sea of Japan than Nansei Islands, which coincided with larval quality. These suggest a maternal effect exists, with egg quality influencing offspring survival, and that the reproductive strategy of PBF varies according to local variation at each spawning ground.
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Affiliation(s)
- Yuko Hiraoka
- Bluefin Tuna Resources Department, National Research Institute of Far Seas Fisheries, Japan Fisheries Research and Education Agency, Shizuoka-shi, Shizuoka, Japan
- * E-mail:
| | - Yumi Okochi
- Environmental Management Unit, JAPAN NUS Co. Ltd, Shinjuku-ku, Tokyo, Japan
| | - Seiji Ohshimo
- Fisheries Management and Oceanography Department, Seikai National Fisheries Research Institute, Japan Fisheries Research and Education Agency, Nagasaki-shi, Nagasaki, Japan
| | - Tamaki Shimose
- Research Center for Subtropical Fisheries, Seikai National Fisheries Research Institute, Japan Fisheries Research and Education Agency, Ishigaki-shi, Okinawa, Japan
| | - Hiroshi Ashida
- Bluefin Tuna Resources Department, National Research Institute of Far Seas Fisheries, Japan Fisheries Research and Education Agency, Shizuoka-shi, Shizuoka, Japan
| | - Takuya Sato
- Bluefin Tuna Resources Department, National Research Institute of Far Seas Fisheries, Japan Fisheries Research and Education Agency, Shizuoka-shi, Shizuoka, Japan
| | - Yasuhiro Ando
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate-shi, Hokkaido, Japan
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16
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Murata Y, Finkelstein DB, Lamborg CH, Finkelstein ME. Tuna Consumption, Mercury Exposure, and Knowledge about Mercury Exposure Risk from Tuna Consumption in University Students. Environ Toxicol Chem 2019; 38:1988-1994. [PMID: 31189023 DOI: 10.1002/etc.4513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/23/2019] [Accepted: 05/31/2019] [Indexed: 06/09/2023]
Abstract
We examined the relationships among tuna consumption, hair mercury levels, and knowledge of mercury exposure risk from tuna consumption in university students that were offered tuna daily at university-run dining halls. Hair total mercury levels in tuna consumers were higher than those in non-tuna consumers (average = 0.466 µg/g ± 0.328 standard deviation [SD], n = 20 vs 0.110 µg/g ± 0.105 SD, n = 33, respectively; p < 0.0001, Mann-Whitney U test), with tuna eaters exhibiting a positive relationship between self-reported tuna consumption at dining halls and hair mercury levels (R2 = 0.868, p < 0.0001, n = 17, linear regression). For all tuna eaters surveyed, more than half (54%) self-reported eating ≥3 tuna meals/wk, potentially exceeding the US Environmental Protection Agency's reference dose for methylmercury of 0.1 µg/kg body weight/d. Seven percent of study participants reported they consumed >20 tuna meals/wk, which was related to hair mercury levels >1 µg/g, a level of concern. Study participants had an overall lack of knowledge and confidence in their knowledge about mercury exposure risk from tuna consumption, with >99% of participants reporting low knowledge and low confidence in survey answers. Our study highlights the importance of education about the risks of tuna consumption, particularly in institutional settings where individuals have unlimited access to tuna products. Environ Toxicol Chem 2019;38:1988-1994. © 2019 SETAC.
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Affiliation(s)
- Yasuhiko Murata
- Microbiology and Environmental Toxicology Department, University of California Santa Cruz, Santa Cruz, California, USA
| | | | - Carl H Lamborg
- Department of Ocean Sciences, University of California Santa Cruz, Santa Cruz, California, USA
| | - Myra E Finkelstein
- Microbiology and Environmental Toxicology Department, University of California Santa Cruz, Santa Cruz, California, USA
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17
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Wang XY, Xie J. Study on the Volatile Organic Compounds and Its Correlation with Water Dynamics of Bigeye Tuna ( Thunnus obesus) during Cold Storage. Molecules 2019; 24:molecules24173119. [PMID: 31466228 PMCID: PMC6749214 DOI: 10.3390/molecules24173119] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/23/2019] [Accepted: 08/27/2019] [Indexed: 11/16/2022] Open
Abstract
Volatile organic compounds (VOCs) and water play a key role in evaluating the quality of aquatic products. Quality deterioration of aquatic products can produce some off-odour volatiles and can induce water content changes. However, no previous study has investigated a correlation between water dynamics and VOCs of bigeye tuna during cold storage. The changes in VOCs, water dynamics and quality attributes of bigeye tuna (Thunnus obesus) upon storage at 0 °C and 4 °C for 6 days were investigated. The results showed that the values of ATP, adenosine diphosphate (ADP), adenosine monophosphate (AMP), T21 (trapped water) and the relative value of T1 decreased (p < 0.05), while drip loss and histamine contents increased (p < 0.05), which indicated quality deterioration during cold storage. With haematoxylin and eosin (HE) staining, muscle tissue microstructure was observed. VOCs such as hexanal, heptanal, 4-Heptenal, (Z)-, pentadecanal-, 1-pentanol, 1-hexanol significantly increased, which sharply increased the content of off-odour volatiles. T21 was positively correlated with 1-octen-3-ol, 1-penten-3-ol, while T21 was negatively correlated with hexanal, 1-hexanol. Therefore, good correlations between water dynamics and some VOCs were detected during quality deterioration of bigeye tuna throughout cold storage.
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Affiliation(s)
- Xin-Yun Wang
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai 201306, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China
- College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Jing Xie
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai 201306, China.
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China.
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China.
- College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, China.
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18
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Ciezarek AG, Osborne OG, Shipley ON, Brooks EJ, Tracey SR, McAllister JD, Gardner LD, Sternberg MJE, Block B, Savolainen V. Phylotranscriptomic Insights into the Diversification of Endothermic Thunnus Tunas. Mol Biol Evol 2019; 36:84-96. [PMID: 30364966 PMCID: PMC6340463 DOI: 10.1093/molbev/msy198] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Birds, mammals, and certain fishes, including tunas, opahs and lamnid sharks, are endothermic, conserving internally generated, metabolic heat to maintain body or tissue temperatures above that of the environment. Bluefin tunas are commercially important fishes worldwide, and some populations are threatened. They are renowned for their endothermy, maintaining elevated temperatures of the oxidative locomotor muscle, viscera, brain and eyes, and occupying cold, productive high-latitude waters. Less cold-tolerant tunas, such as yellowfin tuna, by contrast, remain in warm-temperate to tropical waters year-round, reproducing more rapidly than most temperate bluefin tuna populations, providing resiliency in the face of large-scale industrial fisheries. Despite the importance of these traits to not only fisheries but also habitat utilization and responses to climate change, little is known of the genetic processes underlying the diversification of tunas. In collecting and analyzing sequence data across 29,556 genes, we found that parallel selection on standing genetic variation is associated with the evolution of endothermy in bluefin tunas. This includes two shared substitutions in genes encoding glycerol-3 phosphate dehydrogenase, an enzyme that contributes to thermogenesis in bumblebees and mammals, as well as four genes involved in the Krebs cycle, oxidative phosphorylation, β-oxidation, and superoxide removal. Using phylogenetic techniques, we further illustrate that the eight Thunnus species are genetically distinct, but found evidence of mitochondrial genome introgression across two species. Phylogeny-based metrics highlight conservation needs for some of these species.
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Affiliation(s)
- Adam G Ciezarek
- Department of Life Sciences, Silwood Park Campus, Imperial College London, Ascot, United Kingdom
| | - Owen G Osborne
- Department of Life Sciences, Silwood Park Campus, Imperial College London, Ascot, United Kingdom
| | - Oliver N Shipley
- Shark Research and Conservation Program, The Cape Eleuthera Institute, Rock Sound, Eleuthera, The Bahamas
- School of Marine and Atmospheric Science, Stony Brook University, Stony Brook, NY
| | - Edward J Brooks
- Shark Research and Conservation Program, The Cape Eleuthera Institute, Rock Sound, Eleuthera, The Bahamas
| | - Sean R Tracey
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
| | - Jaime D McAllister
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
| | - Luke D Gardner
- Department of Biology, Hopkins Marine Station, Stanford University, Pacific Grove, CA
| | - Michael J E Sternberg
- Centre for Integrative Systems Biology and Bioinformatics, Department of Life Sciences, Imperial College London, Kensington, London, United Kingdom
| | - Barbara Block
- Department of Biology, Hopkins Marine Station, Stanford University, Pacific Grove, CA
| | - Vincent Savolainen
- Department of Life Sciences, Silwood Park Campus, Imperial College London, Ascot, United Kingdom
- Corresponding author: E-mail:
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Betancor MB, Ortega A, de la Gándara F, Tocher DR, Mourente G. Performance, feed utilization, and hepatic metabolic response of weaned juvenile Atlantic bluefin tuna (Thunnus thynnus L.): effects of dietary lipid level and source. Fish Physiol Biochem 2019; 45:697-718. [PMID: 30470945 PMCID: PMC6500510 DOI: 10.1007/s10695-018-0587-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/05/2018] [Indexed: 05/11/2023]
Abstract
Two trials were performed using extruded diets as on-growing feeds for weaned Atlantic bluefin tuna (Thunnus thynnus; ABT) to establish adequate dietary levels of both lipid and omega-3 long-chain polyunsaturated fatty acids (LC-PUFAs), and impacts on lipid metabolism via liver gene expression. In trial A, ABT were fed with either a commercial feed (Magokoro®; MGK) as a reference diet or two experimental feeds differing in lipid levels (15 or 20%) using krill oil (KO) as the single lipid source in order to estimate suitable lipid content. Fish fed MGK displayed the highest growth, followed by 15KO, and therefore a dietary lipid content of 15% was considered preferable to 20% at this stage. In trial B, fish were fed MGK, 15KO, or a feed containing 15% lipid with a blend of KO and rapeseed oil (RO) (1:1, v/v; 15KORO). Fish fed 15KO and 15KORO showed no difference in weight gain, specific growth rate, and fork length. Increasing dietary lipid level or including vegetable oil, RO, in the feeds did not increase liver lipid content. Liver fatty acid compositions largely reflected dietary profiles confirming very limited endogenous LC-PUFA biosynthesis. Liver of ABT fed 15KO and 20KO displayed the highest contents of docosahexaenoic acid (DHA). The hepatic expression of genes encoding enzymes and transcription factors involved in lipid and fatty acid metabolism, as well as genes encoding antioxidant enzymes, showed that many of these genes were regulated by dietary lipid and LC-PUFA content. Results suggested that ABT juveniles can be on-grown on inert dry feeds that support good fish growth and the accumulation of DHA.
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Affiliation(s)
- Mónica B Betancor
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, FK9 4LA, UK.
| | - Aurelio Ortega
- Planta Experimental de Cultivos Marinos, Instituto Español de Oceanografía (IEO), 30860 Puerto de Mazarrón, Murcia, Spain
| | - Fernando de la Gándara
- Planta Experimental de Cultivos Marinos, Instituto Español de Oceanografía (IEO), 30860 Puerto de Mazarrón, Murcia, Spain
| | - Douglas R Tocher
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, FK9 4LA, UK
| | - Gabriel Mourente
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
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20
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Annibaldi A, Truzzi C, Carnevali O, Pignalosa P, Api M, Scarponi G, Illuminati S. Determination of Hg in Farmed and Wild Atlantic Bluefin Tuna ( Thunnus thynnus L. ) Muscle. Molecules 2019; 24:molecules24071273. [PMID: 30939866 PMCID: PMC6480458 DOI: 10.3390/molecules24071273] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 11/16/2022] Open
Abstract
Mercury (Hg) is a well-known toxic element, diffused in the environment, especially in the Mediterranean Sea which is rich in cinnabar deposits. Mercury bioaccumulation in fish is of great concern, especially for top-level aquatic predators (e.g., shark, tuna, swordfish) and above all for species of large human consumption and high nutritional value. This work aimed to determine Hg concentrations in farmed and wild Atlantic Bluefin tuna (Thunnus thynnus) caught in the Mediterranean area in order to evaluate the level of Hg bioaccumulation. selenium (Se) content was also determined, since this element is an antagonist of mercury toxicity. Mercury and Se were analysed by atomic absorption spectrometry after microwave digestion of the samples. Hg content in farmed tuna was below the legal limit (1 mg/kg, wet weight, w.w.) for all specimens (0.6 ± 0.2 mg/kg), whereas the wild ones had a content over the limit (1.7 ± 0.6 mg/kg); Se concentration was higher in farmed specimens (1.1 ± 0.9 mg/kg) compared to wild ones (0.6 ± 0.3 mg/kg). A safe seafood could show a Se/Hg ratio >1 and a health benefit value (HBVSe) > 0: farmed tuna had higher values than the wild specimens (Se/Hg 5.48 vs. 1.32; HBVSe 11.16 vs. 0.29). These results demonstrate that for Hg, there is a better risk/benefit ratio in farmed T. thynnus. making it safer than wild tuna.
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Affiliation(s)
- Anna Annibaldi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Cristina Truzzi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Oliana Carnevali
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | | | - Martina Api
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Giuseppe Scarponi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Silvia Illuminati
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
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21
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Chagnon C, Thiel M, Antunes J, Ferreira JL, Sobral P, Ory NC. Plastic ingestion and trophic transfer between Easter Island flying fish (Cheilopogon rapanouiensis) and yellowfin tuna (Thunnus albacares) from Rapa Nui (Easter Island). Environ Pollut 2018; 243:127-133. [PMID: 30172118 DOI: 10.1016/j.envpol.2018.08.042] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
Millimetre-sized fragments have been documented in many fish species, but their transfer through food webs is still poorly understood. Here we quantified and described plastic fragments in the digestive tracts of 43 Easter Island flying fish (Cheilopogon rapanouiensis) and 50 yellowfin tunas (Thunnus albacares) from coastal waters around Rapa Nui (Easter Island) in the South Pacific subtropical gyre, and of fish preyed upon by T. albacares. Overall, seven C. rapanouiensis (16%) individuals had ingested microplastics, most of which resembled the common planktonic prey of the fish. One microplastic was found in the gut of a fish ingested by a tuna, which indicates that trophic transfer may occur between tuna and prey. A single T. albacares (2%) had ingested five mesoplastics (15.2-26.3 mm) that were probably not mistaken for prey items, but rather accidentally ingested during foraging on fish prey. The absence of microplastics in T. albacares suggests that such small particles, if transferred from the prey, do not accumulate in the relatively large digestive tract of large predators. On the other hand, larger plastic items may accumulate in the gut of tunas, to which they may induce deleterious effects that still need to be examined. However, only a small portion of the fish had ingested mesoplastics. The results of this study suggest that microplastic contamination is not an immediate threat to large predatory fish, such as T. albacares, along the coast of Easter Island within the South Pacific subtropical gyre.
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Affiliation(s)
- Catherine Chagnon
- Département de Biologie, Université Laval, 2325, Rue de l'Université, Québec, QC, Canada; Facultad Ciencias del Mar, Universidad Católica del Norte, Larrondo, 1281, Coquimbo, Chile
| | - Martin Thiel
- Facultad Ciencias del Mar, Universidad Católica del Norte, Larrondo, 1281, Coquimbo, Chile; Millennium Nucleus Ecology and Sustainable Management of Oceanic Island (ESMOI), Coquimbo, Chile; Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile
| | - Joana Antunes
- MARE-NOVA - Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516, Caparica, Portugal
| | - Joana Lia Ferreira
- LAQV-REQUIMTE, Departamento de Conservação e Restauro, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516, Caparica, Portugal
| | - Paula Sobral
- MARE-NOVA - Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516, Caparica, Portugal
| | - Nicolas Christian Ory
- Facultad Ciencias del Mar, Universidad Católica del Norte, Larrondo, 1281, Coquimbo, Chile; Millennium Nucleus Ecology and Sustainable Management of Oceanic Island (ESMOI), Coquimbo, Chile; GEOMAR Helmholtz Centre of Ocean Research Kiel, Marine Ecology Department, Düsternbrooker Weg 20, 24105, Kiel, Germany.
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22
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Ruelas-Inzunza J, Šlejkovec Z, Mazej D, Fajon V, Horvat M, Ramos-Osuna M. Bioaccumulation of As, Hg, and Se in tunas Thunnus albacares and Katsuwonus pelamis from the Eastern Pacific: tissue distribution and As speciation. Environ Sci Pollut Res Int 2018; 25:19499-19509. [PMID: 29730759 DOI: 10.1007/s11356-018-2166-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
With the aim of knowing the distribution of As, Hg, and Se in skipjack (Katsuwonus pelamis, Linnaeus, 1758) and yellowfin tuna (Thunnus albacares, Bonnaterre, 1788) from the Eastern Pacific, elemental concentrations were determined in the muscle and liver; As species were also analyzed in the stomach content. Additionally, health risk for consumers was assessed. For both tunas, levels of As and Se were significantly higher (p < 0.05) in the liver than in the muscle. In K. pelamis, Hg concentrations in the muscle were significantly higher (p < 0.05) than those in the liver. In T. albacares, As, Hg, and Se showed a trend to increase with fish dimensions. Arsenic extractability was better in the muscle than in the liver of both species; in K. pelamis, As species were better extracted than in T. albacares. In both tuna species, the most extractable arsenic was arsenobetaine (AsB) and a minor part was dimethylarsinic acid (DMA). The liver contained mainly AsB with some DMA and arsenocholine (AsC). Hazard indexes (HI) indicated no risk from Hg and Se intake through these tuna species. Considering the individual contribution to the HI, Hg contributed more (80 to 86%) than Se. In the context of health risk, none of the As and Hg values were above the permissible limits; however, two samples of T. albacares (9%) and three samples of K. pelamis (12%) had Se concentrations over the limits. If Hg and Se in the edible portion of tuna are considered under the approach of the HBVSe, tuna consumption is beneficial.
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Affiliation(s)
- Jorge Ruelas-Inzunza
- Technological Institute of Mazatlán, Corsario 1 No. 203, Col Urías, 82070, Mazatlán, Sinaloa, Mexico.
| | - Zdenka Šlejkovec
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Darja Mazej
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Vesna Fajon
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Milena Horvat
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Mauricio Ramos-Osuna
- Technological Institute of Mazatlán, Corsario 1 No. 203, Col Urías, 82070, Mazatlán, Sinaloa, Mexico
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23
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Núñez R, García MÁ, Alonso J, Melgar MJ. Arsenic, cadmium and lead in fresh and processed tuna marketed in Galicia (NW Spain): Risk assessment of dietary exposure. Sci Total Environ 2018; 627:322-331. [PMID: 29426155 DOI: 10.1016/j.scitotenv.2018.01.253] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/24/2018] [Accepted: 01/24/2018] [Indexed: 06/08/2023]
Abstract
Currently, metal bioaccumulation in fish is increasing and is a cause of concern due to toxicity. Total arsenic, cadmium and lead concentrations in fresh and processed tuna (110 samples) marketed in Galicia (NW Spain) were determined by ICP-MS spectrometry. The average concentrations of As and Cd, 3.78 and 0.024 mg kg-1 w.w., respectively, in fresh tuna were statistically significantly higher than those in processed tuna (p < 0.001). The contents in processed tuna were 0.295-7.85 mg kg-1 for As and ND-0.045 mg kg-1 for Cd. The Pb content was negligible in both types of tuna. In canned tuna, decreasing As and Cd concentrations were observed in different preparation-packaging media: olive oil > natural > pickled sauce. Of the two species studied in canned tuna, Thunnus alalunga showed statistically significant higher levels both for As 1.28 mg kg-1 (p < 0.001) and Pb 0.013 mg kg-1 (p = 0.0496) than Thunnus albacares. No samples surpassed the limits set by the EU for Cd and Pb. The limit for As in fish has not been established, but the arsenic contents in fresh tuna reported here are important, as they are among the highest reported in the literature. Considering public health in children and adults with respect to the investigated metals, the estimated daily intakes (EDIs) did not exceed the tolerable intakes. No chronic systemic risk was found since all the target hazard quotients (THQs-TTHQs) were far below 1 (critical value), and the carcinogenic risk (CR) for As did not exceed the acceptable value of 10-5. Thus, tuna consumption in the Galician diet does not pose a risk for different population groups in terms of these studied metals/metalloids.
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Affiliation(s)
- Ricardo Núñez
- Department of Toxicology, Faculty of Veterinary. University of Santiago de Compostela, 27002 Lugo, Spain
| | - M Ángeles García
- Department of Toxicology, Faculty of Veterinary. University of Santiago de Compostela, 27002 Lugo, Spain
| | - Julián Alonso
- Department of Toxicology, Faculty of Veterinary. University of Santiago de Compostela, 27002 Lugo, Spain
| | - M Julia Melgar
- Department of Toxicology, Faculty of Veterinary. University of Santiago de Compostela, 27002 Lugo, Spain.
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24
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Dhurmeea Z, Pethybridge H, Appadoo C, Bodin N. Lipid and fatty acid dynamics in mature female albacore tuna (Thunnus alalunga) in the western Indian Ocean. PLoS One 2018; 13:e0194558. [PMID: 29608623 PMCID: PMC5880344 DOI: 10.1371/journal.pone.0194558] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 03/06/2018] [Indexed: 02/04/2023] Open
Abstract
Lipid composition in the reproductive and somatic tissues were investigated for female albacore tuna, Thunnus alalunga, in the western Indian Ocean, between latitude 18–21°S and longitude 56–60°E, from January 2014 to March 2015. Highest total lipids (TL) were found in the gonads of spawning-capable females (SCP) (mainly phospholipids, PL, triacylglycerols, TAG and wax esters, WE) and in the liver of females in the late regressing and regenerating ovary phases (mainly TAG, PL and sterols, ST). Muscle TL was low but exhibited high inter-individual variability. Correlations between gonadosomatic and hepatosomatic indices with TL and the lipid classes in albacore gonads and liver describes a pattern of reallocation of energy from the liver to the gonads during SCP. Female albacore were also observed to pursue foraging activities even during this period. Therefore, female albacore can be considered as a capital-income breeder relying mostly on stored lipids before the onset of reproduction and to a lesser extent on energy derived from concurrent feeding during the spawning season. Overall, the three examined tissues had similar general fatty acid profiles with the dominance of 22:6ω3 (docosahexaenoic acid, DHA), 16:0, 18:0 and 18:1ω9. The proportions of fatty acids varied with maturity stage and ovary lobe, with the smaller lobe having significantly higher proportions of essential fatty acids, as well as 16:0 and 18:1n9, compared to the larger one. Our results provide new information on the life-history and energy allocation strategy of albacore which will assist fisheries managers.
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Affiliation(s)
- Zahirah Dhurmeea
- Department of Biosciences and Ocean Studies, Faculty of Science, University of Mauritius, Réduit, Mauritius
- Research Institute for Sustainable Development (IRD)—Marine Biodiversity, Exploitation & Conservation Unit, Victoria, Mahé, Seychelles
- CSIRO Oceans and Atmosphere, Hobart, TAS, Australia
- * E-mail:
| | | | - Chandani Appadoo
- Department of Biosciences and Ocean Studies, Faculty of Science, University of Mauritius, Réduit, Mauritius
| | - Nathalie Bodin
- Research Institute for Sustainable Development (IRD)—Marine Biodiversity, Exploitation & Conservation Unit, Victoria, Mahé, Seychelles
- Seychelles Fishing Authority (SFA), Victoria, Mahé, Seychelles
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25
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Chen CY, Chen YT, Chen KS, Hsu CC, Liu LL, Chen HS, Chen MH. Arsenic and five metal concentrations in the muscle tissue of bigeye tuna (Thunnus obesus) in the Atlantic and Indian Oceans. Mar Pollut Bull 2018; 129:186-193. [PMID: 29680537 DOI: 10.1016/j.marpolbul.2018.02.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 02/09/2018] [Accepted: 02/14/2018] [Indexed: 06/08/2023]
Abstract
White muscle concentrations of As, Cd, Cu, Fe, Se, and Zn were investigated in Atlantic- and Indian-bigeye tuna (BET) (Thunnus obesus) from 6 regions. As and Cd muscle concentrations were significantly higher in the Indian-BET than in the Atlantic-BET, whereas the Indian-BET caught in the waters off South Africa revealed the highest As, Se, and Zn muscle concentrations. Accordingly, multidimensional scaling separated them into two oceanic groups. Positive linear relationships between muscle Cd concentration and fork length (FL) were established in both oceans. For the other elements, only muscle-Fe and FL relationship was found in the Atlantic-BET. 10.3% of BET > 145 cm FL from both oceans possessed muscle Cd concentrations exceeding the food safety limit (0.1 μg g-1 wet weight) set by the European Commission. Increased Cd, Cu and Zn pollution was found in the Atlantic Ocean compared with previous data, with higher levels found in the Indian Ocean.
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Affiliation(s)
- C-Y Chen
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, 811 Kaohsiung, Taiwan
| | - Y-T Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - K-S Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - C-C Hsu
- Institute of Oceanography, National Taiwan University, 106 Taipei, Taiwan
| | - L-L Liu
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - H-S Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - M-H Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, 807 Kaohsiung, Taiwan.
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26
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Nicklisch SCT, Bonito LT, Sandin S, Hamdoun A. Mercury levels of yellowfin tuna (Thunnus albacares) are associated with capture location. Environ Pollut 2017; 229:87-93. [PMID: 28577385 PMCID: PMC6544047 DOI: 10.1016/j.envpol.2017.05.070] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/05/2017] [Accepted: 05/24/2017] [Indexed: 05/13/2023]
Abstract
Mercury is a toxic compound to which humans are exposed by consumption of fish. Current fish consumption advisories focus on minimizing the risk posed by the species that are most likely to have high levels of mercury. Less accounted for is the variation within species, and the potential role of the geographic origin of a fish in determining its mercury level. Here we surveyed the mercury levels in 117 yellowfin tuna caught from 12 different locations worldwide. Our results indicated significant variation in yellowfin tuna methylmercury load, with levels that ranged from 0.03 to 0.82 μg/g wet weight across individual fish. Mean mercury levels were only weakly associated with fish size (R2 < 0.1461) or lipid content (R2 < 0.00007) but varied significantly, by a factor of 8, between sites. The results indicate that the geographic origin of fish can govern mercury load, and argue for better traceability of fish to improve the accuracy of exposure risk predictions.
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Affiliation(s)
- Sascha C T Nicklisch
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0202, United States
| | - Lindsay T Bonito
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0202, United States
| | - Stuart Sandin
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0202, United States
| | - Amro Hamdoun
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0202, United States.
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Nicklisch SCT, Bonito LT, Sandin S, Hamdoun A. Geographic Differences in Persistent Organic Pollutant Levels of Yellowfin Tuna. Environ Health Perspect 2017; 125:067014. [PMID: 28686554 PMCID: PMC5714290 DOI: 10.1289/ehp518] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 09/13/2016] [Accepted: 09/20/2016] [Indexed: 05/06/2023]
Abstract
BACKGROUND Fish are a source of persistent organic pollutants (POPs) in the human diet. Although species, trophic level, and means of production are typically considered in predicting fish pollutant load, and thus recommendations of consumption, capture location is usually not accounted for. OBJECTIVES Yellowfin tuna (Thunnus albacares) are harvested from across the world's oceans and are widely consumed. Here, we determined geographic variation in the overall mass, concentration, and composition of POPs in yellowfin and examined the differences in levels of several POP congeners of potential relevance to human health. METHODS We sampled dorsal muscle of 117 yellowfin tuna from 12 locations worldwide, and measured POP levels using combined liquid or gas chromatography and mass spectrometry according to U.S. Environmental Protection Agency standard procedures. RESULTS POP levels varied significantly among sites, more than 36-fold on a mass basis. Individual fish levels ranged from 0.16 to 138.29 ng/g wet weight and lipid-normalized concentrations from 0.1 to 12.7 μM. Levels of 10 congeners that interfere with the cellular defense protein P-glycoprotein, termed transporter interfering compounds (TICs), ranged from 0.05 to 35.03 ng/g wet weight and from 0.03 to 3.32 μM in tuna lipid. Levels of TICs, and their individual congeners, were strongly associated with the overall POP load. Risk-based analysis of several carcinogenic POPs indicated that the fish with the highest levels of these potentially harmful compounds were clustered at specific geographic locations. CONCLUSIONS Capture location is an important consideration when assessing the level and risk of human exposure to POPs through ingestion of wild fish. https://doi.org/10.1289/EHP518.
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Affiliation(s)
- Sascha C T Nicklisch
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California, USA
| | - Lindsay T Bonito
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California, USA
| | - Stuart Sandin
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California, USA
| | - Amro Hamdoun
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California, USA
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28
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Drevnick PE, Brooks BA. Mercury in tunas and blue marlin in the North Pacific Ocean. Environ Toxicol Chem 2017; 36:1365-1374. [PMID: 28264147 DOI: 10.1002/etc.3757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/16/2017] [Accepted: 02/03/2017] [Indexed: 05/04/2023]
Abstract
Models and data from the North Pacific Ocean indicate that mercury concentrations in water and biota are increasing in response to (global or hemispheric) anthropogenic mercury releases. In the present study, we provide an updated record of mercury in yellowfin tuna (Thunnus albacares) caught near Hawaii that confirms an earlier conclusion that mercury concentrations in these fish are increasing at a rate similar to that observed in waters shallower than 1000 m. We also compiled and reanalyzed data from bigeye tuna (Thunnus obesus) and blue marlin (Makaira nigricans) caught near Hawaii in the 1970s and 2000s. Increases in mercury concentrations in bigeye tuna are consistent with the trend found in yellowfin tuna, in both timing and magnitude. The data available for blue marlin do not allow for a fair comparison among years, because mercury concentrations differ between sexes for this species, and sex was identified (or reported) in only 3 of 7 studies. Also, mercury concentrations in blue marlin may be insensitive to modest changes in mercury exposure, because this species appears to have the ability to detoxify mercury. The North Pacific Ocean is a region of both relatively high rates of atmospheric mercury deposition and capture fisheries production. Other data sets that allow temporal comparisons in mercury concentrations, such as pacific cod (Gadus macrocephalus) in Alaskan waters and albacore tuna (Thunnus alalunga) off the US Pacific coast, should be explored further, to aid in understanding human health and ecological risks and to develop additional baseline knowledge for assessing changes in a region expected to respond strongly to reductions in anthropogenic mercury emissions. Environ Toxicol Chem 2017;36:1365-1374. © 2017 SETAC.
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Affiliation(s)
- Paul E Drevnick
- University of Michigan Biological Station and School of Natural Resources and Environment, Ann Arbor, Michigan, USA
- Environmental Monitoring and Science Division, Alberta Environment and Parks, Calgary, Alberta, Canada
| | - Barbara A Brooks
- Hazard Evaluation and Emergency Response Office, Hawaii Department of Health, Honolulu, Hawaii, USA
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29
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Betancor MB, Ortega A, de la Gándara F, Tocher DR, Mourente G. Lipid metabolism-related gene expression pattern of Atlantic bluefin tuna (Thunnus thynnus L.) larvae fed on live prey. Fish Physiol Biochem 2017; 43:493-516. [PMID: 27815797 PMCID: PMC5374188 DOI: 10.1007/s10695-016-0305-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 10/08/2016] [Indexed: 05/25/2023]
Abstract
The present study is the first to evaluate lipid metabolism in first-feeding Atlantic bluefin tuna (ABT; Thunnus thynnus L.) larvae fed different live prey including enriched rotifers Brachionus plicatilis and Acartia sp. copepod nauplii from 2 days after hatch. Understanding the molecular basis of lipid metabolism and regulation in ABT will provide insights to optimize diet formulations for this high-value species new to aquaculture. To this end, we investigated the effect of dietary lipid on whole larvae lipid class and fatty acid compositions and the expression of key genes involved in lipid metabolism in first feeding ABT larvae fed different live prey. Additionally, the expression of lipid metabolism genes in tissues of adult broodstock ABT was evaluated. Growth and survival data indicated that copepods were the best live prey for first feeding ABT and that differences in growth performance and lipid metabolism observed between larvae from different year classes could be a consequence of broodstock nutrition. In addition, expression patterns of lipid metabolic genes observed in ABT larvae in the trials could reflect differences in lipid class and fatty acid compositions of the live prey. The lipid nutritional requirements, including essential fatty acid requirements of larval ABT during the early feeding stages, are unknown, and the present study represents a first step in addressing these highly relevant issues. However, further studies are required to determine nutritional requirements and understand lipid metabolism during development of ABT larvae and to apply the knowledge to the commercial culture of this iconic species.
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Affiliation(s)
- Mónica B Betancor
- Institute of Aquaculture, University of Stirling, Stirling, Scotland, FK9 4LA, UK.
| | - Aurelio Ortega
- Planta Experimental de Cultivos Marinos, Instituto Español de Oceanografía (IEO), 30860 Puerto de Mazarrón (Murcia), Madrid, Spain
| | - Fernando de la Gándara
- Planta Experimental de Cultivos Marinos, Instituto Español de Oceanografía (IEO), 30860 Puerto de Mazarrón (Murcia), Madrid, Spain
| | - Douglas R Tocher
- Institute of Aquaculture, University of Stirling, Stirling, Scotland, FK9 4LA, UK
| | - Gabriel Mourente
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
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García MÁ, Núñez R, Alonso J, Melgar MJ. Total mercury in fresh and processed tuna marketed in Galicia (NW Spain) in relation to dietary exposure. Environ Sci Pollut Res Int 2016; 23:24960-24969. [PMID: 27672045 DOI: 10.1007/s11356-016-7634-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
Mercury is a toxic trace metal, which can accumulate to levels threatening human and environmental health. In this study, contents of total mercury have been determined by ICP-MS spectrometry in fresh and processed tuna (110 samples) purchased from supermarkets in NW Spain. Mercury was present in all samples analyzed; however, only one sample of fresh tuna (1.070 mg kg-1 wet weight (w.w.)) slightly exceeded the limit of the EU (1.0 mg kg-1 w.w.). The average mercury concentration in processed tuna was lower than fresh, 0.306 mg kg-1 w.w., and ranged from 0.080 to 0.715 mg kg-1 w.w. Results were compared with literature data. In regard to the three types of preparation-packaging media for canned tuna, total Hg content was found in the following order: olive oil > natural > pickled sauce; the last showed significant statistical differences (p < 0.01) with the other two preparations. Between the two evaluated canned tuna species, significant statistical differences (p = 0.008) were observed and Thunnus alalunga presented a greater mean content (0.332 ± 0.114 mg kg-1 w.w.) compared to Thunnus albacares (0.266 ± 0.171 mg kg-1 w.w.).Taking into account the AESAN recommendation for adults and children, as well as the EU regulations and the tuna consumption by the Spanish population, the Hg levels obtained in this study pose no risk to consumer health. However, additional studies, a monitoring process, and efforts to reduce Hg concentration in tuna would be necessary, as well as considering other sources of exposure to Hg.
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Affiliation(s)
- M Ángeles García
- Department of Toxicology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Ricardo Núñez
- Department of Toxicology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Julián Alonso
- Department of Toxicology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain
| | - M Julia Melgar
- Department of Toxicology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain.
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31
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Grande M, Murua H, Zudaire I, Arsenault-Pernet EJ, Pernet F, Bodin N. Energy allocation strategy of skipjack tuna Katsuwonus pelamis during their reproductive cycle. J Fish Biol 2016; 89:2434-2448. [PMID: 27730635 DOI: 10.1111/jfb.13125] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 05/08/2016] [Accepted: 07/26/2016] [Indexed: 06/06/2023]
Abstract
The lipid composition of somatic and reproductive tissues was determined for female skipjack tuna Katsuwonus pelamis caught in the western Indian Ocean between latitude 10° N and 20° S and longitude 40° and 70° E. The highest total lipid (TL) contents were in the liver and gonads, with white muscle levels approximately three-fold lower. Three lipid classes dominated: triacylglycerols (TAG), sterol esters and wax esters (SE-WE) and phospholipids (PL). Collectively, these accounted for between 70 and 80% of TLs. Changes in lipid concentrations were evaluated over the maturation cycle. Immature fish had the lowest gonad and liver TL levels; concentrations of TL, TAG, SE-WE and PL accumulated from immature to mature (spawning-capable) phase, reflecting sustained vitellogenic activity of the liver and a transfer of lipids to developing oocytes from the onset of vitellogenesis. Gonado-somatic and hepato-somatic indices were positively correlated with each other and positively related to TL in the gonads and liver. Fulton's condition index and lipid concentrations in muscle did not vary significantly over the maturation cycle; fat content in the main storage tissues was undepleted as the ovary developed. Hence, K. pelamis apparently supports reproduction directly from food intake over the breeding season. In the gonads, reserve lipids (SE-WE and TAG) and sterols were related to batch fecundity but this was not the case for somatic and hepatic tissues. These results suggest that K. pelamis utilizes an income breeding strategy.
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Affiliation(s)
- M Grande
- AZTI-Tecnalia, Marine Research Division, Herrera Kaia-Portu aldea z/g, Pasaia, Gipuzkoa, Spain.
- ALBACORA S.A., Polígono Landabaso s/n, Bermeo, Spain.
| | - H Murua
- AZTI-Tecnalia, Marine Research Division, Herrera Kaia-Portu aldea z/g, Pasaia, Gipuzkoa, Spain
| | - I Zudaire
- AZTI-Tecnalia, Marine Research Division, Herrera Kaia-Portu aldea z/g, Pasaia, Gipuzkoa, Spain
- Institut de Recherche pour le Développement (IRD), UMR 248 MARBEC, Avenue Jean Monnet, BP 171, Sète, France
| | - E J Arsenault-Pernet
- Institut de Recherche pour le Développement (IRD), UMR 248 MARBEC, Avenue Jean Monnet, BP 171, Sète, France
| | - F Pernet
- Ifremer - Centre Bretagne- ZI de la Pointe du Diable-CS 10070 - 29280 Plouzané, Brest, France
| | - N Bodin
- Institut de Recherche pour le Développement (IRD), UMR 248 MARBEC, Victoria, Mahé, Seychelles
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Maisano M, Cappello T, Oliva S, Natalotto A, Giannetto A, Parrino V, Battaglia P, Romeo T, Salvo A, Spanò N, Mauceri A. PCB and OCP accumulation and evidence of hepatic alteration in the Atlantic bluefin tuna, T. thynnus, from the Mediterranean Sea. Mar Environ Res 2016; 121:40-48. [PMID: 27012897 DOI: 10.1016/j.marenvres.2016.03.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 03/07/2016] [Accepted: 03/13/2016] [Indexed: 06/05/2023]
Abstract
Persistent organic pollutants (POPs) are known to act as "obesogens", being fat-soluble and affecting lipid metabolism. The Atlantic bluefin tuna, Thunnus thynnus, are top pelagic predators prone to bioaccumulate and biomagnify environmental contaminants. This study aimed at evaluating POPs-induced ectopic lipid accumulation in liver of adult tuna from the Mediterranean Sea. PCBs and organochlorine pesticides were measured in tuna liver, and marked morphological changes observed, namely poorly compacted tissues, intense vacuolization, erythrocyte infiltration and presence of melanomacrophages. The expression of perilipin, a lipid-droplet marker, positively correlated with the gene expression of PPARγ, a master regulator of adipogenesis, and its heterodimeric partner, RXRα. Changes in metabolites involved in fatty acid biosynthesis and ketogenesis were also observed. Although male bluefin tuna appeared to be more sensitive than females to the adverse effects of environmental obesogens, the alterations observed in tuna liver of both sexes suggest a potential onset of hepatic steatosis.
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Affiliation(s)
- Maria Maisano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Sabrina Oliva
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Antonino Natalotto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Alessia Giannetto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Vincenzo Parrino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Pietro Battaglia
- ISPRA, Institute for Environmental Protection and Research, Laboratory of Ichthyology and Marine Ecology, Via dei Mille 46, 98057 Milazzo, ME, Italy
| | - Teresa Romeo
- ISPRA, Institute for Environmental Protection and Research, Laboratory of Ichthyology and Marine Ecology, Via dei Mille 46, 98057 Milazzo, ME, Italy
| | - Andrea Salvo
- Department of Environmental Sciences, Security, Territory, Food and Health, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Nunziacarla Spanò
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Angela Mauceri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
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Olson RJ, Young JW, Ménard F, Potier M, Allain V, Goñi N, Logan JM, Galván-Magaña F. Bioenergetics, Trophic Ecology, and Niche Separation of Tunas. Adv Mar Biol 2016; 74:199-344. [PMID: 27573052 DOI: 10.1016/bs.amb.2016.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Tunas are highly specialized predators that have evolved numerous adaptations for a lifestyle that requires large amounts of energy consumption. Here we review our understanding of the bioenergetics and feeding dynamics of tunas on a global scale, with an emphasis on yellowfin, bigeye, skipjack, albacore, and Atlantic bluefin tunas. Food consumption balances bioenergetics expenditures for respiration, growth (including gonad production), specific dynamic action, egestion, and excretion. Tunas feed across the micronekton and some large zooplankton. Some tunas appear to time their life history to take advantage of ephemeral aggregations of crustacean, fish, and molluscan prey. Ontogenetic and spatial diet differences are substantial, and significant interdecadal changes in prey composition have been observed. Diet shifts from larger to smaller prey taxa highlight ecosystem-wide changes in prey availability and diversity and provide implications for changing bioenergetics requirements into the future. Where tunas overlap, we show evidence of niche separation between them; resources are divided largely by differences in diet percentages and size ranges of prey taxa. The lack of long-term data limits the ability to predict impacts of climate change on tuna feeding behaviour. We note the need for systematic collection of feeding data as part of routine monitoring of these species, and we highlight the advantages of using biochemical techniques for broad-scale analyses of trophic relations. We support the continued development of ecosystem models, which all too often lack the regional-specific trophic data needed to adequately investigate climate and fishing impacts.
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Affiliation(s)
- R J Olson
- Inter-American Tropical Tuna Commission, La Jolla, CA, United States.
| | - J W Young
- CSIRO Marine and Atmospheric Research, Hobart, TAS, Australia
| | - F Ménard
- Institut de Recherche pour le Développement (IRD), Mediterranean Institute of Oceanography (Aix-Marseille Université, CNRS, IRD, Université de Toulon), Marseille, France
| | - M Potier
- IRD, UMR MARBEC (IRD, UM, Ifremer, CNRS), Sète cedex, France
| | - V Allain
- Pacific Community (SPC), Nouméa cedex, New Caledonia
| | - N Goñi
- AZTI-Tecnalia/Marine Research, Pasaia, Gipuzkoa, Spain
| | - J M Logan
- Massachusetts Division of Marine Fisheries, New Bedford, MA, United States
| | - F Galván-Magaña
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, Mexico
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Munschy C, Bodin N, Potier M, Héas-Moisan K, Pollono C, Degroote M, West W, Hollanda SJ, Puech A, Bourjea J, Nikolic N. Persistent Organic Pollutants in albacore tuna (Thunnus alalunga) from Reunion Island (Southwest Indian Ocean) and South Africa in relation to biological and trophic characteristics. Environ Res 2016; 148:196-206. [PMID: 27084988 DOI: 10.1016/j.envres.2016.03.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/29/2016] [Accepted: 03/31/2016] [Indexed: 06/05/2023]
Abstract
The contamination of albacore tuna (Thunnus alalunga) by Persistent Organic Pollutants (POPs), namely polychlorinated biphenyls (PCBs) and dichlorodiphenyl-trichloroethane (DDT), was investigated in individuals collected from Reunion Island (RI) and South Africa's (SA) southern coastlines in 2013, in relation to biological parameters and feeding ecology. The results showed lower PCB and DDT concentrations than those previously reported in various tuna species worldwide. A predominance of DDTs over PCBs was revealed, reflecting continuing inputs of DDT. Tuna collected from SA exhibited higher contamination levels than those from RI, related to higher dietary inputs and higher total lipid content. Greater variability in contamination levels and profiles was identified in tuna from RI, explained by a higher diversity of prey and more individualistic foraging behaviour. PCB and DDT contamination levels and profiles varied significantly in tuna from the two investigated areas, probably reflecting exposure to different sources of contamination.
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Affiliation(s)
- C Munschy
- IFREMER (Institut Français de Recherche pour l'Exploitation de la Mer), Laboratory of Biogeochemistry of Organic Contaminants, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 3, France.
| | - N Bodin
- IRD (Institut de Recherche pour le Développement), UMR 248 MARBEC (MARine Biodiversity, Exploitation & Conservation), Fishing Port, Victoria, Mahé, Seychelles
| | - M Potier
- IRD (Institut de Recherche pour le Développement), UMR 248 MARBEC (MARine Biodiversity, Exploitation & Conservation), Centre de Recherche Halieutique, Avenue Jean Monnet, BP 171, 34200 Sète, France
| | - K Héas-Moisan
- IFREMER (Institut Français de Recherche pour l'Exploitation de la Mer), Laboratory of Biogeochemistry of Organic Contaminants, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 3, France
| | - C Pollono
- IFREMER (Institut Français de Recherche pour l'Exploitation de la Mer), Laboratory of Biogeochemistry of Organic Contaminants, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 3, France
| | - M Degroote
- IRD (Institut de Recherche pour le Développement), UMR 248 MARBEC (MARine Biodiversity, Exploitation & Conservation), Fishing Port, Victoria, Mahé, Seychelles
| | - W West
- DAFF (Department of Agriculture, Forestry and Fisheries), Private Bag X2, Roggebaai 8012, South Africa
| | - S J Hollanda
- SFA (Seychelles Fishing Authority), Fishing Port, Victoria, Mahé, Seychelles
| | - A Puech
- IFREMER, Délégation Ocean Indien, Rue Jean Bertho, BP 60, 97822 Le Port Cedex, La Réunion, France
| | - J Bourjea
- IFREMER, UMR 248 MARBEC (MARine Biodiversity, Exploitation & Conservation), Centre de Recherche Halieutique, Avenue Jean Monnet, BP 171, 34200 Sète, France
| | - N Nikolic
- IFREMER, Délégation Ocean Indien, Rue Jean Bertho, BP 60, 97822 Le Port Cedex, La Réunion, France
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Chiesa LM, Labella GF, Panseri S, Pavlovic R, Bonacci S, Arioli F. Distribution of persistent organic pollutants (POPS) IN wild Bluefin tuna (Thunnus thynnus) from different FAO capture zones. Chemosphere 2016; 153:162-169. [PMID: 27016811 DOI: 10.1016/j.chemosphere.2016.03.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 06/05/2023]
Abstract
Residues of environmental contaminants in food represent a concern in food safety programs. In this study, the distribution of persistent organic pollutants (POPs) were evaluated in 79 tuna samples from FAO areas 51 (Indian Ocean), 71 (Pacific Ocean), 34 (Atlantic Ocean), and 37 (Mediterranean Sea). 6 polychlorinated biphenyls (PCBs), 16 organochlorines (OCs) and 7 polybrominated biphenyl ethers (PBDEs) were selected as representative compounds according to EFSA POPs monitoring guidelines. An analytical method, based on Accelerated Solvent Extraction (ASE), with an "in-line" clean-up step and GC-MS/MS detection, was developed, validated and applied. PCBs were detected in all FAO areas, with a prevalence of 100% for most of them. In the FAO area 37, only, all PBDEs were detected. Only 5 OCs were detected. The results showed that POPs contamination of tuna reflects FAO area contamination; in particular FAO area 37 was the most polluted. Moreover, tuna muscle was an appropriate matrix for monitoring contamination and for obtaining information about food safety.
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Affiliation(s)
- L M Chiesa
- Department of Veterinary Science and Public Health, University of Milan, Via Celoria 10, 20133 Milan, Italy
| | - G F Labella
- Department of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, Italy
| | - S Panseri
- Department of Veterinary Science and Public Health, University of Milan, Via Celoria 10, 20133 Milan, Italy.
| | - R Pavlovic
- Department of Veterinary Science and Public Health, University of Milan, Via Celoria 10, 20133 Milan, Italy
| | - S Bonacci
- Department of Health Sciences, University of Catanzaro Magna Graecia, Catanzaro, Italy
| | - F Arioli
- Department of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, Italy
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Deshpande AD, Dickhut RM, Dockum BW, Brill RW, Farrington C. Polychlorinated biphenyls and organochlorine pesticides as intrinsic tracer tags of foraging grounds of bluefin tuna in the northwest Atlantic Ocean. Mar Pollut Bull 2016; 105:265-76. [PMID: 26895594 DOI: 10.1016/j.marpolbul.2016.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 05/12/2023]
Abstract
Researchers have utilized chemical fingerprints in the determination of habitat utilization and movements of the aquatic animals. In the present effort, we analyzed polychlorinated biphenyl (PCB) congeners and organochlorine pesticides in the samples of juvenile bluefin tuna caught offshore of Virginia, and in larger bluefin tuna from the Gulf of Maine and near Nova Scotia. For a given specimen, or a given location, PCB concentrations were highest, followed by DDTs, and chlordanes. Average contaminant concentrations from fish captured from the three locations were not significantly different; and PCBs, DDTs, and chlordanes correlated well with each other. Trans-nonachlor/PCB 153 ratios in bluefin tuna of eastern Atlantic (i.e., Mediterranean) origin are low compared to the corresponding ratios in fish in the western Atlantic. As the former migrate to the western Atlantic, these ratios gradually turnover due to the accumulation of biomass from forage contaminated with higher trans-nonachlor/PCB 153 ratio reflecting dissimilar use of chlordane pesticides on two sides of the Atlantic Ocean. The trans-nonachlor/PCB 153 ratio indicated that one juvenile bluefin tuna from offshore of Virginia and one large bluefin tuna from Gulf of Maine in the present study originated from foraging grounds in the Mediterranean Sea, and that they have made the trans-Atlantic migrations. The remaining individuals were determined to be either spawned in the Gulf of Mexico or the trans-nonachlor/PCB 153 ratio for the putative Mediterranean bluefin tuna was completely turned over to resemble the ratio characteristic to the western Atlantic. Based on the turnover time for trans-nonachlor/PCB 153 ratio previously determined, the residence time of juvenile bluefin tuna offshore Virginia was estimated to be at least 0.8 to 1.6years. A discriminant function analysis (DFA) plot of total PCB normalized signatures of PCB congeners showed three separate clusters, which suggested that bluefin tuna from offshore Virginia, Gulf of Maine, and Nova Scotia could have had extended residences and foraging within the areas of capture to be able to sustain the stable signatures of PCB congeners. The DFA cluster results supported the concept of metapopulation theory of spatial ecology comprising discrete aggregates of local populations of bluefin tuna where the desired prey species are likely to be abundant. Despite their highly migratory trait and endothermic advantage of foraging in broader and colder habitats, the movements and mixing across the aggregation ranges related to feeding did not appear to be extensive. Advancement in the understanding of bluefin tuna population dynamics beyond the coarse concept of trans-Atlantic migrations to the metapopulation hypothesis provides a novel exploratory tool in the stock assessment and resource management. As the chemical tracer tags are fortified naturally and document the time- and space-integrated foraging history, they promise to serve as the low-cost alternatives to the high-cost electronic data recording tags employed for addressing the migratory movements of bluefin tuna. Between the different potential chemical tracer tags, a distinct advantage of PCB/pesticide analysis over the otolith micro-constituent analysis is that the muscle tissue of a given individual bluefin tuna can be sampled repeatedly for PCB/pesticide analysis over different spatial and temporal scales in a non-lethal manner.
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Affiliation(s)
- Ashok D Deshpande
- NOAA Fisheries, Northeast Fisheries Science Center, James J. Howard Marine Sciences Laboratory, Sandy Hook, NJ, United States.
| | - Rebecca M Dickhut
- Virginia Institute of Marine Science, Gloucester Point, VA, United States
| | - Bruce W Dockum
- NOAA Fisheries, Northeast Fisheries Science Center, James J. Howard Marine Sciences Laboratory, Sandy Hook, NJ, United States
| | - Richard W Brill
- NOAA Fisheries, Northeast Fisheries Science Center, James J. Howard Marine Sciences Laboratory, Sandy Hook, NJ, United States
| | - Cameron Farrington
- NOAA Fisheries, Northeast Fisheries Science Center, James J. Howard Marine Sciences Laboratory, Sandy Hook, NJ, United States
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Nicklisch SCT, Rees SD, McGrath AP, Gökirmak T, Bonito LT, Vermeer LM, Cregger C, Loewen G, Sandin S, Chang G, Hamdoun A. Global marine pollutants inhibit P-glycoprotein: Environmental levels, inhibitory effects, and cocrystal structure. Sci Adv 2016; 2:e1600001. [PMID: 27152359 PMCID: PMC4846432 DOI: 10.1126/sciadv.1600001] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 03/21/2016] [Indexed: 05/05/2023]
Abstract
The world's oceans are a global reservoir of persistent organic pollutants to which humans and other animals are exposed. Although it is well known that these pollutants are potentially hazardous to human and environmental health, their impacts remain incompletely understood. We examined how persistent organic pollutants interact with the drug efflux transporter P-glycoprotein (P-gp), an evolutionarily conserved defense protein that is essential for protection against environmental toxicants. We identified specific congeners of organochlorine pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers that inhibit mouse and human P-gp, and determined their environmental levels in yellowfin tuna from the Gulf of Mexico. In addition, we solved the cocrystal structure of P-gp bound to one of these inhibitory pollutants, PBDE (polybrominated diphenyl ether)-100, providing the first view of pollutant binding to a drug transporter. The results demonstrate the potential for specific binding and inhibition of mammalian P-gp by ubiquitous congeners of persistent organic pollutants present in fish and other foods, and argue for further consideration of transporter inhibition in the assessment of the risk of exposure to these chemicals.
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Affiliation(s)
- Sascha C. T. Nicklisch
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093–0202, USA
| | - Steven D. Rees
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093–0657, USA
| | - Aaron P. McGrath
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093–0657, USA
| | - Tufan Gökirmak
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093–0202, USA
| | - Lindsay T. Bonito
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093–0202, USA
| | - Lydia M. Vermeer
- Sekisui XenoTech, LLC, 1101 West Cambridge Circle Drive, Kansas City, KS 66103, USA
| | - Cristina Cregger
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093–0657, USA
| | - Greg Loewen
- Sekisui XenoTech, LLC, 1101 West Cambridge Circle Drive, Kansas City, KS 66103, USA
| | - Stuart Sandin
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093–0202, USA
| | - Geoffrey Chang
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093–0657, USA
- Department of Pharmacology, School of Medicine, University of California San Diego, La Jolla, CA 92093–0657, USA
| | - Amro Hamdoun
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093–0202, USA
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Torres P, Rodrigues A, Soares L, Garcia P. Metal Concentrations in Two Commercial Tuna Species from an Active Volcanic Region in the Mid-Atlantic Ocean. Arch Environ Contam Toxicol 2016; 70:341-347. [PMID: 26681184 DOI: 10.1007/s00244-015-0249-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 11/30/2015] [Indexed: 06/05/2023]
Abstract
Concentrations of cadmium (Cd), mercury (Hg), and lead [Pb (µg g(-1) wet weight)] were determined in liver and muscle samples of 15 bigeye (Thunnus obesus) and 15 skipjack tunas (Katsuwonus pelamis) caught over an active volcanic region in the Mid-Atlantic Ocean (Azores, Portugal) and evaluated regarding consumption safety. None of the muscle samples (edible part) exceeded the European Union (EU) maximum limits (MLs) for Hg and Pb. Cd concentrations in muscle were much greater than EU MLs with 53 and 26 % of the bigeye tuna and skipjack tuna, respectively, in exceedance of the limits. Results obtained in this work, together with other studies in the same region, support the existence of an important volcanic source of Cd in waters of the Mid-Atlantic region, which should be carefully monitored given the importance of many commercial marine species for human consumption, mainly in Europe.
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Affiliation(s)
- Paulo Torres
- Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Ponta Delgada, Açores, Portugal.
- Departamento de Biologia, Universidade dos Açores, 9500-801, Ponta Delgada, Açores, Portugal.
| | - Armindo Rodrigues
- Departamento de Biologia, Universidade dos Açores, 9500-801, Ponta Delgada, Açores, Portugal
- Centro de Vulcanologia e Avaliação de Riscos Geológicos, Ponta Delgada, Açores, Portugal
| | - Lília Soares
- Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Ponta Delgada, Açores, Portugal
| | - Patrícia Garcia
- Departamento de Biologia, Universidade dos Açores, 9500-801, Ponta Delgada, Açores, Portugal
- Centre for Ecology, Evolution and Environmental Changes, Azorean Biodiversity Group, Ponta Delgada, Portugal
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Araújo CVM, Cedeño-Macias LA. Heavy metals in yellowfin tuna (Thunnus albacares) and common dolphinfish (Coryphaena hippurus) landed on the Ecuadorian coast. Sci Total Environ 2016; 541:149-154. [PMID: 26406109 DOI: 10.1016/j.scitotenv.2015.09.090] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 09/16/2015] [Accepted: 09/16/2015] [Indexed: 05/06/2023]
Abstract
Heavy metals are contaminants of great environmental concern due to their multiple origins (natural and anthropogenic), the ability to accumulate in organs and tissues, and the deleterious effects they can cause in organisms. Studies on the accumulation of metals in seafood, such as fish, have increased in importance due to the risk for human health when consuming fish contaminated by metals. The present work was aimed at verifying the concentrations of cadmium (Cd), mercury (Hg) and lead (Pb) in the muscular tissue and liver of yellowfin tuna (Thunnus albacares) and common dolphinfish (Coryphaena hippurus) from the Eastern Pacific Ocean landed in Manta city, Ecuador. Samples were analyzed by inductively coupled plasma mass spectroscopy (ICP-MS). Around half of the muscle samples of both species presented levels of Cd and Hg above the limits considered safe for human consumption established by the European Union. For Pb,most of the muscle samples were considered acceptable for consumption. Results indicate that both species should be consumed with some caution. Considering the tolerable weekly intake recommended for adults by the World Health Organization, results indicate that Hg is the main metal that limits the consumption of yellowfin tuna and common dolphinfish, with a recommended maximum ingestion, respectively, of 191 and 178 g per week for an adult.c
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Affiliation(s)
- Cristiano V M Araújo
- Central Department of Research (DCI), Ecuadorian Aquatic Ecotoxicology (ECUACTOX) group, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador; Centre of Functional Ecology (CFE), Department of Life Sciences, University of Coimbra, Coimbra, Portugal.
| | - Luis A Cedeño-Macias
- Central Department of Research (DCI), Ecuadorian Aquatic Ecotoxicology (ECUACTOX) group, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador; Faculty of Marine Sciences, Universidad Laica Eloy Alfaro de Manabí (ULEAM), Manta, Ecuador
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40
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Afonso C, Costa S, Cardoso C, Oliveira R, Lourenço HM, Viula A, Batista I, Coelho I, Nunes ML. Benefits and risks associated with consumption of raw, cooked, and canned tuna (Thunnus spp.) based on the bioaccessibility of selenium and methylmercury. Environ Res 2015; 143:130-137. [PMID: 25962922 DOI: 10.1016/j.envres.2015.04.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 04/20/2015] [Accepted: 04/29/2015] [Indexed: 06/04/2023]
Abstract
The Se, Hg, and methylmercury (MeHg) levels in raw, cooked (boiled and grilled), and canned tuna (Thunnus spp.) were determined before and after an in vitro digestion, thereby enabling the calculation of the respective bioaccessibility percentages. A risk-benefit evaluation of raw and canned tuna on the basis of the Se and MeHg data was performed. Selenium bioaccessibility was high in tuna, though slightly lower in canned than in raw products. Mercury levels were high in raw and cooked tuna. Hg bioaccessibility percentages were low (39-48%) in the cooked tuna and even lower (<20%) in canned tuna. For the bioaccessible fraction, all molar Se:MeHg ratios were higher than one (between 10 and 74). A probabilistic assessment of MeHg risk vs Se benefit showed that while a weekly meal of canned tuna presents very low risk, raw, boiled, and grilled tuna consumption should not exceed a monthly meal, at least, for pregnant and nursing women.
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Affiliation(s)
- C Afonso
- Department of Sea and Marine Resources, Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Av. Brasília 1449-006 Lisbon, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - S Costa
- Department of Sea and Marine Resources, Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Av. Brasília 1449-006 Lisbon, Portugal
| | - C Cardoso
- BioAtlantis, Ltd., Kerry Technology Park, Tralee, County Kerry, Ireland.
| | - R Oliveira
- Department of Sea and Marine Resources, Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Av. Brasília 1449-006 Lisbon, Portugal
| | - H M Lourenço
- Department of Sea and Marine Resources, Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Av. Brasília 1449-006 Lisbon, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - A Viula
- Department of Marine Sciences and Engineering, University of Cabo Verde, R. Julião Postal Box 163, S. Vicente, Cape Verde
| | - I Batista
- Department of Sea and Marine Resources, Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Av. Brasília 1449-006 Lisbon, Portugal
| | - I Coelho
- Food and Nutrition Department, National Health Institute Doutor Ricardo Jorge (INSA, IP), Av. Padre Cruz, 1649-016 Lisbon, Portugal
| | - M L Nunes
- Department of Sea and Marine Resources, Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Av. Brasília 1449-006 Lisbon, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
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Basova IN, Basova NE, Yagodina OV. [CATALITICAL PROPERTIES OF LIVER MONOAMINE OXIDASE IN THE CHUM SALMON ONCORHYNCHUS KETA]. Zh Evol Biokhim Fiziol 2015; 51:324-330. [PMID: 26856071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The substrate and inhibitory specificity of mitochondrial monoamine oxidase (MAO) in the liver of males of the summer form of the chum salmon Oncorhynchus keta was studied. As to the spectrum of deaminated substrates, the hepatic MAO of the chum salmon is similar to MAO of most terrestrial mammals, for eight classical MAO substrates similarity in their substrate characteristics were found. Analysis of the antimonoamine oxidase activity of two derivaties of 2-propinilamine, five derivatives of acridine as well as of pyronine G revealed significant qualitative and quantitative differences as compared to the hepatic enzyme of tuna and whitefish. The compounds tested manifested themselves as irreversible inhibitors of chum salmon's hepatic MAO possessing various efficacy, but lacking the selectivity of action as dependent on the deaminated substrate. The obtained data on the substrate and inhibitory analysis provide an indirect evidence for the presence of a single molecular form of MAO in the chum salmon liver.
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Laiz-Carrión R, Gerard T, Uriarte A, Malca E, Quintanilla JM, Muhling BA, Alemany F, Privoznik SL, Shiroza A, Lamkin JT, García A. Trophic ecology of Atlantic Bluefin Tuna (Thunnus thynnus) [corrected] larvae from the Gulf of Mexico and NW Mediterranean spawning grounds: A Comparative Stable Isotope Study. PLoS One 2015. [PMID: 26225849 PMCID: PMC4520599 DOI: 10.1371/journal.pone.0133406] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The present study uses stable isotopes of nitrogen and carbon (δ15Nandδ13C) as trophic indicators for Atlantic bluefin tuna larvae (BFT) (6–10 mm standard length) in the highly contrasting environmental conditions of the Gulf of Mexico (GOM) and the Balearic Sea (MED). These regions are differentiated by their temperature regime and relative productivity, with the GOM being significantly warmer and more productive. MED BFT larvae showed the highest δ15N signatures, implying an elevated trophic position above the underlying microzooplankton baseline. Ontogenetic dietary shifts were observed in the BFT larvae from the GOM and MED which indicates early life trophodynamics differences between these spawning habitats. Significant trophic differences between the GOM and MED larvae were observed in relation to δ15N signatures in favour of the MED larvae, which may have important implications in their growth during their early life stages.These low δ15N levels in the zooplankton from the GOM may be an indication of a shifting isotopic baseline in pelagic food webs due to diatrophic inputs by cyanobacteria. Lack of enrichment for δ15N in BFT larvae compared to zooplankton implies an alternative grazing pathway from the traditional food chain of phytoplankton—zooplankton—larval fish. Results provide insight for a comparative characterization of the trophic pathways variability of the two main spawning grounds for BFT larvae.
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Affiliation(s)
- Raúl Laiz-Carrión
- Instituto Español de Oceanografía—Centro Oceanográfico de Málaga (COM-IEO), Fuengirola, Spain
- * E-mail:
| | - Trika Gerard
- Southeast Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Miami, Florida, United States of America
- South Florida Campus- University of Phoenix, Miramar, Florida, United States of America
| | - Amaya Uriarte
- Instituto Español de Oceanografía—Centro Oceanográfico de Málaga (COM-IEO), Fuengirola, Spain
| | - Estrella Malca
- South Florida Campus- University of Phoenix, Miramar, Florida, United States of America
- Cooperative Institute for Marine and Atmospheric Studies (CIMAS), University of Miami, Miami, Florida, United States of America
| | - José María Quintanilla
- Instituto Español de Oceanografía—Centro Oceanográfico de Málaga (COM-IEO), Fuengirola, Spain
| | - Barbara A. Muhling
- Princeton University Program in Atmospheric and Oceanic Science, Forrestal Campus/Sayre Hall, Princeton, New Jersey, United States of America
- NOAA Geophysical Fluid Dynamics Laboratory, 201 Forrestal Road, Princeton, New Jersey, United States of America
| | - Francisco Alemany
- Instituto Español de Oceanografía Centro Oceanográfico de Baleares (COB-IEO), Palma de Mallorca, Balearic Islands, Spain
| | - Sarah L. Privoznik
- South Florida Campus- University of Phoenix, Miramar, Florida, United States of America
- Cooperative Institute for Marine and Atmospheric Studies (CIMAS), University of Miami, Miami, Florida, United States of America
| | - Akihiro Shiroza
- South Florida Campus- University of Phoenix, Miramar, Florida, United States of America
- Cooperative Institute for Marine and Atmospheric Studies (CIMAS), University of Miami, Miami, Florida, United States of America
| | - John T. Lamkin
- Southeast Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Miami, Florida, United States of America
| | - Alberto García
- Instituto Español de Oceanografía—Centro Oceanográfico de Málaga (COM-IEO), Fuengirola, Spain
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Chi CF, Hu FY, Wang B, Li ZR, Luo HY. Influence of Amino Acid Compositions and Peptide Profiles on Antioxidant Capacities of Two Protein Hydrolysates from Skipjack Tuna (Katsuwonus pelamis) Dark Muscle. Mar Drugs 2015; 13:2580-601. [PMID: 25923316 PMCID: PMC4446595 DOI: 10.3390/md13052580] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 04/09/2015] [Accepted: 04/21/2015] [Indexed: 11/17/2022] Open
Abstract
Influence of amino acid compositions and peptide profiles on antioxidant capacities of two protein hydrolysates from skipjack tuna (Katsuwonus pelamis) dark muscle was investigated. Dark muscles from skipjack tuna were hydrolyzed using five separate proteases, including pepsin, trypsin, Neutrase, papain and Alcalase. Two hydrolysates, ATH and NTH, prepared using Alcalase and Neutrase, respectively, showed the strongest antioxidant capacities and were further fractionated using ultrafiltration and gel filtration chromatography. Two fractions, Fr.A3 and Fr.B2, isolated from ATH and NTH, respectively, showed strong radical scavenging activities toward 2,2-diphenyl-1-picrylhydrazyl radicals (EC50 1.08% ± 0.08% and 0.98% ± 0.07%), hydroxyl radicals (EC50 0.22% ± 0.03% and 0.48% ± 0.05%), and superoxide anion radicals (EC50 1.31% ± 0.11% and 1.56% ± 1.03%) and effectively inhibited lipid peroxidation. Eighteen peptides from Fr.A3 and 13 peptides from Fr.B2 were isolated by reversed-phase high performance liquid chromatography, and their amino acid sequences were determined. The elevated antioxidant activity of Fr.A3 might be due to its high content of hydrophobic and aromatic amino acid residues (181.1 and 469.9 residues/1000 residues, respectively), small molecular sizes (3–6 peptides), low molecular weights (524.78 kDa), and amino acid sequences (antioxidant score 6.11). This study confirmed that a smaller molecular size, the presence of hydrophobic and aromatic amino acid residues, and the amino acid sequences were the key factors that determined the antioxidant activities of the proteins, hydrolysates and peptides. The results also demonstrated that the derived hydrolysates and fractions from skipjack tuna (K. pelamis) dark muscles could prevent oxidative reactions and might be useful for food preservation and medicinal purposes.
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Affiliation(s)
- Chang-Feng Chi
- National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, 1st Haidanan Road, Changzhi Island, Lincheng, Zhoushan 316022, China.
| | - Fa-Yuan Hu
- National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, 1st Haidanan Road, Changzhi Island, Lincheng, Zhoushan 316022, China.
| | - Bin Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, 1st Haidanan Road, Changzhi Island, Lincheng, Zhoushan 316022, China.
| | - Zhong-Rui Li
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Hong-Yu Luo
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, 1st Haidanan Road, Changzhi Island, Lincheng, Zhoushan 316022, China.
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Drevnick PE, Lamborg CH, Horgan MJ. Increase in mercury in Pacific yellowfin tuna. Environ Toxicol Chem 2015; 34:931-4. [PMID: 25645441 DOI: 10.1002/etc.2883] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 11/17/2014] [Accepted: 01/04/2015] [Indexed: 05/04/2023]
Abstract
Mercury is a toxic trace metal that can accumulate to levels that threaten human and environmental health. Models and empirical data suggest that humans are responsible for a great deal of the mercury actively cycling in the environment at present. Thus, one might predict that the concentration of mercury in fish should have increased dramatically since the Industrial Revolution. Evidence in support of this hypothesis has been hard to find, however, and some studies have suggested that analyses of fish show no change in mercury concentration. By compiling and re-analyzing published reports on yellowfin tuna (Thunnus albacares) caught near Hawaii (USA) over the past half century, the authors found that the concentration of mercury in these fish currently is increasing at a rate of at least 3.8% per year. This rate of increase is consistent with a model of anthropogenic forcing on the mercury cycle in the North Pacific Ocean and suggests that fish mercury concentrations are keeping pace with current loading increases to the ocean. Future increases in mercury in yellowfin tuna and other fishes can be avoided by reductions in atmospheric mercury emissions from point sources.
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Affiliation(s)
- Paul E Drevnick
- University of Michigan Biological Station and School of Natural Resources and Environment, University of Michigan, Ann Arbor, Michigan, USA
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Yano S, Mori M, Teramoto N, Iisaka M, Suzuki N, Noto M, Kaimoto Y, Kakimoto M, Yamada M, Shiratsuchi E, Shimasaki T, Shibata M. Preparation of photocrosslinked fish elastin polypeptide/microfibrillated cellulose composite gels with elastic properties for biomaterial applications. Mar Drugs 2015; 13:338-53. [PMID: 25584682 PMCID: PMC4306940 DOI: 10.3390/md13010338] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 12/26/2014] [Indexed: 01/13/2023] Open
Abstract
Photocrosslinked hydrogels reinforced by microfibrillated cellulose (MFC) were prepared from a methacrylate-functionalized fish elastin polypeptide and MFC dispersed in dimethylsulfoxide (DMSO). First, a water-soluble elastin peptide with a molecular weight of ca. 500 g/mol from the fish bulbus arteriosus was polymerized by N,N'-dicyclohexylcarbodiimide (DCC), a condensation reagent, and then modified with 2-isocyanatoethyl methacrylate (MOI) to yield a photocrosslinkable fish elastin polypeptide. The product was dissolved in DMSO and irradiated with UV light in the presence of a radical photoinitiator. We obtained hydrogels successfully by substitution of DMSO with water. The composite gel with MFC was prepared by UV irradiation of the photocrosslinkable elastin polypeptide mixed with dispersed MFC in DMSO, followed by substitution of DMSO with water. The tensile test of the composite gels revealed that the addition of MFC improved the tensile properties, and the shape of the stress-strain curve of the composite gel became more similar to the typical shape of an elastic material with an increase of MFC content. The rheology measurement showed that the elastic modulus of the composite gel increased with an increase of MFC content. The cell proliferation test on the composite gel showed no toxicity.
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Affiliation(s)
- Shinya Yano
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Megumi Mori
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Naozumi Teramoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Makoto Iisaka
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Natsumi Suzuki
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Masanari Noto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Yasuko Kaimoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Masashi Kakimoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Michio Yamada
- Research & Development Division, Hayashikane Sangyo Co., Ltd., 2-4-8 Yamato-machi, Shimonoseki, Yamaguchi 750-8608, Japan.
| | - Eri Shiratsuchi
- Research & Development Division, Hayashikane Sangyo Co., Ltd., 2-4-8 Yamato-machi, Shimonoseki, Yamaguchi 750-8608, Japan.
| | - Toshiaki Shimasaki
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Mitsuhiro Shibata
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
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Knope K, Sloan-Gardner TS, Stafford RJ. Histamine fish poisoning in Australia, 2001 to 2013. Commun Dis Intell (2018) 2014; 38:E285-E293. [PMID: 25631589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on human illness due to histamine fish poisoning outbreaks in Australia from 2001 to 2013. Histamine fish poisoning results from the ingestion of histamine contained within the flesh of certain fish species that naturally contain histidine, which has been converted to histamine by spoilage bacteria following poor handling or temperature control after harvesting. While symptoms vary, allergic symptoms such as facial flushing, headaches and rashes are frequently reported. Using the OzFoodNet outbreak register, published case reports and surveillance reports, we found data on 57 outbreaks of histamine fish poisoning, which affected 187 people, of whom 14% were hospitalised. There were no deaths reported. Outbreaks were generally small in size, with a median of 2 cases per outbreak (range 1 to 22 people), with 88% of outbreaks comprising less than 5 people. Tuna (in the family Scombridae) was the most frequently reported food vehicle, while 18 outbreaks involved non-scombridae fish. Median incubation periods among the outbreaks were short; being less than 1 hour for 22 outbreaks. The most frequently reported symptoms were diarrhoea and rash. Symptoms of facial/body flushing were reported for at least one case in 19 outbreaks and tingling, burning or swelling of the skin, especially around the lips for at least 1 case in 13 outbreaks. In 3 outbreaks, one or more cases were reported to have had respiratory distress or difficulty breathing. While the condition is often mild, improved recognition and appropriate treatment is important, as it will reduce the possibility of any severe health effects resulting from this condition. Key features of histamine fish poisoning outbreaks are the high attack rate, rapid onset, the typical symptoms and their short duration.
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Affiliation(s)
- Katrina Knope
- Zoonoses, Foodborne and Emerging Infectious Diseases Section, Health Emergency Policy Branch, Office of Health Protection, Australian Government Department of Health, Woden, Australian Capital Territory
| | - Timothy S Sloan-Gardner
- Zoonoses, Foodborne and Emerging Infectious Diseases Section, Health Emergency Policy Branch, Office of Health Protection, Australian Government Department of Health, Woden, Australian Capital Territory and Master of Philosophy in Applied Epidemiology (MAE) Scholar, National Centre for Epidemiology and Population Health, Research School of Population Health, ANU College of Medicine, Biology and Environment, Australian National University, Acton, Australian Capital Territory
| | - Russell J Stafford
- OzFoodNet, Communicable Diseases Unit, Chief Health Officer Branch, Department of Health, Herston, Queensland
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Murashita K, Matsunari H, Kumon K, Tanaka Y, Shiozawa S, Furuita H, Oku H, Yamamoto T. Characterization and ontogenetic development of digestive enzymes in Pacific bluefin tuna Thunnus orientalis larvae. Fish Physiol Biochem 2014; 40:1741-1755. [PMID: 25055726 DOI: 10.1007/s10695-014-9964-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/15/2014] [Indexed: 06/03/2023]
Abstract
The major digestive enzymes in Pacific bluefin tuna Thunnus orientalis larvae were characterized, and the physiological characteristics of the enzymes during early ontogeny were clarified using biochemical and molecular approaches. The maximum activity of trypsin (Try), chymotrypsin (Ct) and amylase (Amy) was observed at pH 6-11, 8-11 and 6-9, respectively. Maximum activity of Try, Ct and Amy occurred at 50 °C, that of lipase (Lip) was at 60 °C and that of pepsin (Pep) was at 40-50 °C. These pH and thermal profiles were similar to those for other fish species but differed from those previously reported for adult bluefin tuna. Enzyme activity for all enzymes assayed was found to decrease at high temperatures (Try, Ct, Amy and Pep: 50 °C; Lip: 40 °C), which is similar to findings for other fish species with one marked exception-increased Try activity was observed at 40 °C. Lip activity appeared to be dependent on bile salts under our assay conditions, resulting in a significant increase in activity in the presence of bile salts. Ontogenetic changes in pancreatic digestive enzymes showed similar gene expression patterns to those of other fish species, whereas marked temporal increases in enzyme activities were observed at 10-12 days post hatching (dph), coinciding with previously reported timing of the development of the pyloric caeca in bluefin tuna larvae. However, complete development of digestive function was indicated by the high pep gene expression from 19 dph, which contradicts the profile of Pep activity and previously reported development timing of the gastric gland. These findings contribute to the general knowledge of bluefin tuna larval digestive system development.
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Affiliation(s)
- Koji Murashita
- Aquaculture Systems Division, National Research Institute of Aquaculture, Fisheries Research Agency, 224-1, Hiruda, Tamaki, Mie, 519-0423, Japan,
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Basu N, Tutino R, Zhang Z, Cantonwine DE, Goodrich JM, Somers EC, Rodriguez L, Schnaas L, Solano M, Mercado A, Peterson K, Sánchez BN, Hernández-Avila M, Hu H, Maria Téllez-Rojo M. Mercury levels in pregnant women, children, and seafood from Mexico City. Environ Res 2014; 135:63-9. [PMID: 25262076 PMCID: PMC4262596 DOI: 10.1016/j.envres.2014.08.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/09/2014] [Accepted: 08/13/2014] [Indexed: 05/20/2023]
Abstract
BACKGROUND Mercury is a global contaminant of concern though little is known about exposures in México. OBJECTIVES To characterize mercury levels in pregnant women, children, and commonly consumed seafood samples. METHODS Use resources of the Early Life Exposures in Mexico to Environmental Toxicants (ELEMENT) birth cohorts to measure total mercury levels in archived samples from 348 pregnant women (blood from three trimesters and cord blood), 825 offspring (blood, hair, and urine) and their mothers (hair), and 91 seafood and canned tuna samples from Mexico City. RESULTS Maternal blood mercury levels correlated across three trimesters and averaged 3.4 μg/L. Cord blood mercury averaged 4.7 μg/L and correlated with maternal blood from trimester 3 (but not trimesters 1 and 2). In children, blood, hair and urine mercury levels correlated and averaged 1.8 μg/L, 0.6 μg/g, and 0.9 μg/L, respectively. Hair mercury was 0.5 μg/g in mothers and correlated with child's hair. Mean consumption of canned tuna, fresh fish, canned sardine, and shellfish was 3.1, 2.2, 0.5, and 1.0 times per month respectively in pregnant women. Mean mercury content in 7 of 23 seafood species and 5 of 9 canned tuna brands purchased exceeded the U.S. EPA guidance value of 0.3 μg/g. CONCLUSIONS Mercury exposures in pregnant women and children from Mexico City, via biomarker studies, are generally 3-5 times greater than values reported in population surveys from the U.S., Canada, and elsewhere. In particular, mercury levels in 29-39% of the maternal participants exceeded the biomonitoring guideline associated with the U.S. EPA reference dose for mercury.
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Affiliation(s)
- Niladri Basu
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA; Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Quebec, Canada H9X 2T9.
| | - Rebecca Tutino
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Zhenzhen Zhang
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - David E Cantonwine
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA; Division of Maternal-Fetal Medicine, Brigham & Women׳s Hospital, Harvard School of Medicine, Boston, MA, USA
| | - Jaclyn M Goodrich
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Emily C Somers
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA; Department of Internal Medicine, School of Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Lauren Rodriguez
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Lourdes Schnaas
- Division of Public Health, National Institute of Perinatology, Mexico, D.F., Mexico
| | - Maritsa Solano
- Division of Statistics, Center for Evaluation Research and Surveys, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Adriana Mercado
- Division of Statistics, Center for Evaluation Research and Surveys, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Karen Peterson
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Brisa N Sánchez
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | | | - Howard Hu
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Martha Maria Téllez-Rojo
- Division of Statistics, Center for Evaluation Research and Surveys, National Institute of Public Health, Cuernavaca, Morelos, Mexico
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49
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Ruelas-Inzunza J, Soto-Jiménez MF, Ruiz-Fernández AC, Ramos-Osuna M, Mones-Saucedo J, Páez-Osuna F. ²¹⁰Po, Cd and Pb distribution and biomagnification in the yellowfin tuna Thunnus albacares and skipjack tuna Katsuwonus pelamis from the Eastern Pacific. Mar Pollut Bull 2014; 87:98-103. [PMID: 25152180 DOI: 10.1016/j.marpolbul.2014.08.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 07/08/2014] [Accepted: 08/04/2014] [Indexed: 06/03/2023]
Abstract
We measured Cd and Pb in the muscle and stomach contents of Thunnus albacares and Katsuwonus pelamis to define the distribution of the elements in the tissues and their degrees of biomagnification. (210)Po was measured in the livers of both species and compared to the results of similar studies. The trophic position of the tuna species was determined by N isotope measurements. The average activity of (210)Po in the liver ranged from 119 to 157 (Bq kg(-1) wet weight) in K. pelamis and T. albacares. The trophic position of T. albacares (4.60) was higher than that of K. pelamis (3.94). The Cd content of the muscle increased significantly with the trophic position of the tuna. δ(13)C in T. albacares and K. pelamis varied, with values of 3.13 and 1.88‰, respectively. The δ(15)N values in yellowfin tuna were higher than in skipjack tuna. The trophic position of T. albacares (4.60 ± 0.67) was therefore more elevated than that of K. pelamis (3.94 ± 1.06). Pb was biomagnified in T. albacares (transfer factor=1.46).
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Affiliation(s)
- J Ruelas-Inzunza
- Instituto Tecnológico de Mazatlán, Calle Corsario 1, No. 203, Col. Urías, Mazatlán 82070, Sinaloa, Mexico.
| | - M F Soto-Jiménez
- Universidad Nacional Autónoma de México/Instituto de Ciencias del Mar y Limnología, Explanada de la Azada s/n, Mazatlán 82040, Sinaloa, Mexico
| | - A C Ruiz-Fernández
- Universidad Nacional Autónoma de México/Instituto de Ciencias del Mar y Limnología, Explanada de la Azada s/n, Mazatlán 82040, Sinaloa, Mexico
| | - M Ramos-Osuna
- Instituto Tecnológico de Mazatlán, Calle Corsario 1, No. 203, Col. Urías, Mazatlán 82070, Sinaloa, Mexico; Universidad Nacional Autónoma de México/Instituto de Ciencias del Mar y Limnología, Explanada de la Azada s/n, Mazatlán 82040, Sinaloa, Mexico
| | - J Mones-Saucedo
- Instituto Tecnológico de Mazatlán, Calle Corsario 1, No. 203, Col. Urías, Mazatlán 82070, Sinaloa, Mexico
| | - F Páez-Osuna
- Universidad Nacional Autónoma de México/Instituto de Ciencias del Mar y Limnología, Explanada de la Azada s/n, Mazatlán 82040, Sinaloa, Mexico
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50
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Teffer AK, Staudinger MD, Taylor DL, Juanes F. Trophic influences on mercury accumulation in top pelagic predators from offshore New England waters of the northwest Atlantic Ocean. Mar Environ Res 2014; 101:124-134. [PMID: 25440782 DOI: 10.1016/j.marenvres.2014.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/22/2014] [Accepted: 09/28/2014] [Indexed: 06/04/2023]
Abstract
Trophic pathways and size-based bioaccumulation rates of total mercury were evaluated among recreationally caught albacore tuna (Thunnus alalunga), yellowfin tuna (Thunnus albacares), shortfin mako shark (Isurus oxyrinchus), thresher shark (Alopias vulpinus), and dolphinfish (Coryphaena hippurus) from offshore southern New England waters of the northwest Atlantic Ocean between 2008 and 2011. Mercury concentrations were highest in mako (2.65 ± 1.16 ppm) and thresher sharks (0.87 ± 0.71 ppm), and significantly lower in teleosts (albacore, 0.45 ± 0.14 ppm; yellowfin, 0.32 ± 0.09 ppm; dolphinfish, 0.20 ± 0.17 ppm). The relationship between body size and mercury concentration was positive and linear for tunas, and positive and exponential for sharks and dolphinfish. Mercury increased exponentially with δ (15)N values, a proxy for trophic position, across all species. Results demonstrate mercury levels are positively related to size, diet and trophic position in sharks, tunas, and dolphinfish, and the majority of fishes exhibited concentrations greater than the US EPA recommended limit.
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Affiliation(s)
- Amy K Teffer
- University of Massachusetts, Department of Environmental Conservation, 160 Holdsworth Way, Amherst, MA 01003-9285, USA.
| | - Michelle D Staudinger
- University of Massachusetts, Department of Environmental Conservation, 160 Holdsworth Way, Amherst, MA 01003-9285, USA; University of North Carolina Wilmington, Department of Biology and Marine Biology, Wilmington, NC 28403, USA.
| | - David L Taylor
- Roger Williams University, Department of Marine Biology, One Old Ferry Road, Bristol, RI 02809, USA.
| | - Francis Juanes
- University of Massachusetts, Department of Environmental Conservation, 160 Holdsworth Way, Amherst, MA 01003-9285, USA.
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