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Jha AK, Kishore P, Chinnadurai S, Verma SK, Kumar R, Sreejith S, Sarika K. Heavy metals and trace minerals in commonly available shark species from North East Arabian Sea: A human health risk perspective. ENVIRONMENTAL RESEARCH 2024; 252:118979. [PMID: 38685303 DOI: 10.1016/j.envres.2024.118979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/16/2024] [Accepted: 04/20/2024] [Indexed: 05/02/2024]
Abstract
Shark is a seafood commodity that is a good source of minerals and accumulates heavy metals and trace elements through biomagnification, which can pose health risk if taken above the permissible limit. A study was conducted on commonly landed eleven shark species (Scoliodon laticaudus, Rhizopriodon oligolinx, Sphyrna lewini (CR), Carcharhinus macloti, Carcharinus limbatus, Carcharhinus amblyrhynchoides, Carcharhinus sorrah, Carcharinus falciformes(VU), Glaucostegus granulatus, Chiloscyllium arabicum, Loxodon macrorhinus) and analyzed for their heavy metal content, Hazard Index, Total Hazard Quotient, Metal Pollution Index, and also calculated the health risk associated with the consumption. Most of the heavy metals and trace minerals were found to be within the acceptable limit. The Targeted Hazard Quotient (THQ) and the Hazard Index (HI) of all the species except two were less than 1 (HI ≤ 1.0). The Metal Pollution Index (MPI) is showing either no impact or very low contamination. An overall study on hazard identification and health risk characterization in terms of heavy metals shows contamination of some heavy metals in sharks, but there is no potential human health risk associated with consumption.
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Affiliation(s)
- Ashish Kumar Jha
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India.
| | - Pankaj Kishore
- Central Institute of Fisheries Technology, ICAR-CIFT, Matsyapuri, Willingdon Island, Cochin, 682029, India
| | | | - Sumit Kumar Verma
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
| | - Rajan Kumar
- Veraval Regional Station of ICAR-CMFRI, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
| | - S Sreejith
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
| | - K Sarika
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
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Selena Shen KL, Cheow JJ, Cheung AB, Koh RJR, Koh Xiao Mun A, Lee YN, Lim YZ, Namatame M, Peng E, Vintenbakh V, Lim EX, Wainwright BJ. DNA barcoding continues to identify endangered species of shark sold as food in a globally significant shark fin trade hub. PeerJ 2024; 12:e16647. [PMID: 38188178 PMCID: PMC10771092 DOI: 10.7717/peerj.16647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/20/2023] [Indexed: 01/09/2024] Open
Abstract
Shark fins are a delicacy consumed throughout Southeast Asia. The life history characteristics of sharks and the challenges associated with regulating fisheries and the fin trade make sharks particularly susceptible to overfishing. Here, we used DNA barcoding techniques to investigate the composition of the shark fin trade in Singapore, a globally significant trade hub. We collected 505 shark fin samples from 25 different local seafood and Traditional Chinese Medicine shops. From this, we identified 27 species of shark, three species are listed as Critically Endangered, four as Endangered and ten as Vulnerable by the International Union for Conservation of Nature (IUCN). Six species are listed on CITES Appendix II, meaning that trade must be controlled in order to avoid utilization incompatible with their survival. All dried fins collected in this study were sold under the generic term "shark fin"; this vague labelling prevents accurate monitoring of the species involved in the trade, the effective implementation of policy and conservation strategy, and could unwittingly expose consumers to unsafe concentrations of toxic metals. The top five most frequently encountered species in this study are Rhizoprionodon acutus, Carcharhinus falciformis, Galeorhinus galeus, Sphyrna lewini and Sphyrna zygaena. Accurate labelling that indicates the species of shark that a fin came from, along with details of where it was caught, allows consumers to make an informed choice on the products they are consuming. Doing this could facilitate the avoidance of species that are endangered, and similarly the consumer can choose not to purchase species that are documented to contain elevated concentrations of toxic metals.
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Affiliation(s)
| | - Jin Jie Cheow
- Yale-NUS College, National University of Singapore, Singapore
| | | | | | | | - Yun Ning Lee
- Yale-NUS College, National University of Singapore, Singapore
| | - Yan Zhen Lim
- Yale-NUS College, National University of Singapore, Singapore
| | - Maya Namatame
- Yale-NUS College, National University of Singapore, Singapore
| | - Eileen Peng
- Yale-NUS College, National University of Singapore, Singapore
- Yale University, New Haven, CT, USA
| | | | - Elisa X.Y. Lim
- Yale-NUS College, National University of Singapore, Singapore
| | - Benjamin John Wainwright
- Yale-NUS College, National University of Singapore, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore
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Yacoubi L, El Zrelli RB, Hsu HH, Lin YJ, Savoca D, Gopalan J, Nazal M, Bhuyan MS, Arculeo M, Rabaoui LJ. Bioaccumulation of trace elements and hydrocarbons in chondrichthyans of the western Arabian Gulf: Environmental and human health risk assessment and implications for conservation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165990. [PMID: 37536588 DOI: 10.1016/j.scitotenv.2023.165990] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
This is a first attempt to assess the levels of trace elements, PAHs, and TPHs in six elasmobranch species (Carcharhinus dussumieri, C. sorrah, Chiloscyllium arabicum, Gymnura poecilura, Sphyrna lewini, S. mokarran) from the Arabian Gulf. The chemical analysis showed that the concentrations of contaminants differed significantly between liver and muscle samples with both pelagic and benthic species and all families. For all species, contaminant concentrations were significantly higher in the liver than in the muscle. While muscle contaminant concentrations differed significantly with respect to species' lifestyles and families, those of liver showed no significant differences between pelagic and benthic species, neither between the four families nor between the six species. None of the analysed contaminants exceeded the internationally recognized standards in all studied species. These results enrich the knowledge on the bioaccumulation of contaminants in elasmobranchs and allow to assess the environmental status of the Arabian Gulf.
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Affiliation(s)
- Lamia Yacoubi
- University of Tunis El Manar, Faculty of Science of Tunis, Laboratory of Biodiversity & Parasitology of Aquatic Ecosystems (LR18ES05), University Campus, 2092 Tunis, Tunisia.
| | | | - Hua Hsun Hsu
- Coastal and Offshore Resources Research Center, Fisheries Research Institute, Council of Agriculture, Taiwan
| | - Yu-Jia Lin
- National Taiwan University, Institute of Oceanography, Taipei 10617, Taiwan
| | - Dario Savoca
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 20, Palermo 90123, Italy; NBFC, National Biodiversity Future Center, Palermo 90123, Italy
| | - Jinoy Gopalan
- AR Center of Environment & Marine Studies, King Fahd University of Petroleum & Minerals, Daharan, Saudi Arabia
| | - Mazen Nazal
- AR Center of Environment & Marine Studies, King Fahd University of Petroleum & Minerals, Daharan, Saudi Arabia
| | - Md Simul Bhuyan
- Bangladesh Oceanographic Research Institute, Cox's Bazar 4730, Bangladesh
| | - Marco Arculeo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 20, Palermo 90123, Italy
| | - Lotfi Jilani Rabaoui
- University of Tunis El Manar, Faculty of Science of Tunis, Laboratory of Biodiversity & Parasitology of Aquatic Ecosystems (LR18ES05), University Campus, 2092 Tunis, Tunisia; National Center for Wildlife, Ministry of Environment, Water & Agriculture, Riyadh, Saudi Arabia
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Liñán-Cabello MA, Álvaro-Berlanga S, Flores-Jiménez GI, Calatayud-Pavía CE, Gutiérrez ÁJ, Cruz-Ramírez A, Jacobi-Aguilar C, Soto-Jiménez MF. Assessment of potential risks to human health associated with trace elements in three commercially important shark species captured in the Central Mexican Pacific. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:109769-109783. [PMID: 37777706 DOI: 10.1007/s11356-023-30079-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023]
Abstract
Shark meat is a popular protein source worldwide. However, existing national control policies for ensuring the safety and quality of shark meat are minimal. There are concerns about the sustainability of shark populations, which bioaccumulate and biomagnify potentially toxic elements at higher rates than non-predatory fish, posing a risk to human health. In this study, the contributions of essential elements to the Recommended Dietary Allowance (RDA) and potentially toxic elements to the Reference Dose (RfD) linked to shark consumption (200 g per week) were investigated for three shark species in the Central Mexican Pacific. We estimated risks and benefits for women, children, and men. Our results suggest that the three shark species are sources of Se, Co, Cr, Cu, Fe, and Zn, but poor sources of Mn for women and men aged 19-50 years. A weekly ingestion of 200 g of shark meat exceeded the RfD-As by 4-14 times and the RfD-Pb by 1.1-1.7 times for adults, indicating a potential risk to human health. The three shark species were also significant sources of potentially toxic elements for children, including Hg, Cd, Cr, and Pb. An excessive intake of Se was observed, with levels at 8.4-10.6 and 4.3-5.3 times the RDA for children aged 1-8 and 9-13 years, respectively. Although shark meat can be a good source of essential nutrients, the lack of controls in the commercialization process indicates that it should be consumed in moderation due to the potential risks associated with excessive exposure to potentially toxic elements. This caution is particularly important for children and pregnant women, who are at higher risk of health complications from consuming contaminated food.
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Affiliation(s)
- Marco Agustín Liñán-Cabello
- Facultad de Ciencias Marinas, Universidad de Colima, Km 19.5 Carretera Manzanillo Barra de Navidad, 28860, Manzanillo, Colima, México.
| | - Sara Álvaro-Berlanga
- Facultad de Ciencias, Universidad de La Laguna, Avda. Astrofísico 14 Francisco Sánchez, SN. Edificio Calabaza and 2 Apto. 456, 38200, San Cristóbal de La Laguna, Spain
| | - Graciela Isabel Flores-Jiménez
- Facultad de Ciencias Marinas, Universidad de Colima, Km 19.5 Carretera Manzanillo Barra de Navidad, 28860, Manzanillo, Colima, México
| | | | - Ángel José Gutiérrez
- Deparment of Obstetrics and Gynecology, Pediatrics, Preventive Medicine and Public Health, Toxicology, Universidad de La Laguna, 38200, La Laguna, Santa Cruz de Tenerife, Spain
| | - Angélica Cruz-Ramírez
- Fundación México Azul, A. C, Avenida México 141, Colonia del Carmen, Coyoacán, 04100, Ciudad de México, México
| | - Cynthia Jacobi-Aguilar
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México (UNAM), Av. Joel Montes Camarena S/N Apartado Postal 811, 82040, Mazatlán, Sin, México
| | - Martín Federico Soto-Jiménez
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México (UNAM), Av. Joel Montes Camarena S/N Apartado Postal 811, 82040, Mazatlán, Sin, México
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Tiznado-Salazar VM, Bojórquez-Sánchez C, Zamora-García OG, Márquez-Farías JF, Páez-Osuna F, Bergés-Tiznado ME. Bioaccumulation of Essential and Potentially Toxic Elements in the Muscle and Liver of the Spotted Ratfish (Hydrolagus colliei) From Deep-Sea Waters off the Northern Gulf of California. Biol Trace Elem Res 2023; 201:2536-2545. [PMID: 35749046 DOI: 10.1007/s12011-022-03330-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022]
Abstract
This study aimed to establish the distribution of As, Cd, Cu, Pb, and Zn, in the muscle and liver of the spotted ratfish Hydrolagus colliei from the northern Gulf of California to establish the bioaccumulation background data in this species. The individuals (n = 110) were obtained by bycatch from the Gulf of California hake fisheries, and the metals and metalloid were measured by atomic absorption spectrometry. The element with the highest concentration in the muscle (15.19 ± 5.40 mg kg-1) and the liver (20.98 ± 10.30 mg kg-1) was As, followed by essential elements (Zn > Cu), and the lowest were the non-essential Pb (0.029 ± 0.014 and 0.048 ± 0.038 mg kg-1, muscle and liver, respectively) and Cd (0.022 ± 0.014 and 0.796 ± 0.495 mg kg-1, muscle and liver, respectively). The liver showed higher bioaccumulation than the muscle in all the studied elements. The sex was not a factor that influenced the bioaccumulation. The concentrations of As in the muscle did not exceed the maximum permissible limits of Mexican legislation, and < 50% of the samples exceed Cd and Pb limits of the Mexican, European Union, and WHO/FAO regulations. The differences found between the elements and tissues could be related to the different diets of the species, their migratory patterns, and their life conditions. Studies in the deep-sea water H. colliei are limited, and further investigations are needed regarding the feeding habits of H. colliei as well as the interactions of potentially toxic elements within the deep-sea water habitat.
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Affiliation(s)
- Víctor Manuel Tiznado-Salazar
- Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Unidad Académica Mazatlán, P.O. Box 811, 82000, Mazatlán, Sinaloa, México
| | - Carolina Bojórquez-Sánchez
- Unidad Académica de Ingeniería en Tecnología Ambiental, Universidad Politécnica de Sinaloa, Carretera Municipal Libre Mazatlán-Higueras km. 3, Genaro Estrada, 82199, Mazatlán, Sinaloa, México
| | - Oscar Guillermo Zamora-García
- Servicios Integrales de Recursos Biológicos, Acuáticos y Ambientales, Genaro Estrada 406 Centro, 82000, Mazatlán, Sinaloa, México
| | - Juan Fernando Márquez-Farías
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen S/N Col. Centro, 82000, Mazatlán, Sinaloa, México
| | - Federico Páez-Osuna
- Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, P.O. Box 811, 82000, Mazatlán, Sinaloa, México
- El Colegio de Sinaloa, Antonio Rosales 435 Poniente, Culiacán, Sinaloa, México
| | - Magdalena Elizabeth Bergés-Tiznado
- Unidad Académica de Ingeniería en Tecnología Ambiental, Universidad Politécnica de Sinaloa, Carretera Municipal Libre Mazatlán-Higueras km. 3, Genaro Estrada, 82199, Mazatlán, Sinaloa, México.
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6
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Alves LMF, Lemos MFL, Moutinho AB, Ceia FR, Muñoz-Arnanz J, Jiménez B, Cabral H, Novais SC. Assessment of contaminants in blue sharks from the Northeast Atlantic: Profiles, accumulation dynamics, and risks for human consumers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120467. [PMID: 36273690 DOI: 10.1016/j.envpol.2022.120467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/14/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
Chemical pollution is a major threat to marine ecosystems, and top predators such as most shark species are extremely vulnerable to being exposed and accumulating contaminants such as metals and persistent organic pollutants (POPs). This work aimed to study the degree, composition, and the sources of contamination in the blue shark (Prionace glauca) inhabiting the Northeast Atlantic, as well as the potential risk faced by human consumers. A total of 60 sharks were sampled in situ aboard fishing vessels, and the concentrations of a set of metals and POPs were analysed in various tissues and complemented with stable isotope analyses. High levels of contaminants were found in most sharks sampled. The concentrations of most metals were higher in the muscle when compared with the liver. Regarding the dangers to consumers posed by the concentrations of arsenic (As), mercury (Hg), and lead (Pb), over 75% of the sharks presented muscle concentrations of at least one contaminant above the legal limits for human consumption, and a risk assessment determined that consumption of meat of these sharks exceeding 0.07 Kg per week could potentially expose human consumers to dangerous amounts of methylmercury (MeHg). Additionally, the assessment of single contaminants may lead to an underestimation of the risk for the human health. Finally, the overall accumulation of contaminants seems to be mostly influenced by the sharks' geographical distribution, rather than sex, size, or trophic level of their prey.
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Affiliation(s)
- Luís M F Alves
- MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal.
| | - Marco F L Lemos
- MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal
| | - Ariana B Moutinho
- MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal
| | - Filipe R Ceia
- University of Coimbra, MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Juan Muñoz-Arnanz
- Dept. of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, (IQOG-CSIC), Madrid, Spain
| | - Begoña Jiménez
- Dept. of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, (IQOG-CSIC), Madrid, Spain
| | | | - Sara C Novais
- MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal
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Vega-Barba C, Páez-Osuna F, Galván-Magaña F, Baró-Camarasa I, Aguilar-Palomino B, Galván-Piña VH, Marmolejo-Rodríguez AJ. Trace elements in the silky shark Carcharhinus falciformis in the Central Pacific Mexican Shelf. MARINE POLLUTION BULLETIN 2022; 185:114263. [PMID: 36327932 DOI: 10.1016/j.marpolbul.2022.114263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Mercury (Hg), cadmium (Cd) and copper (Cu) concentrations were determined in muscle, liver and fin of the silky shark (Carcharhinus falciformis) caught in the Central Pacific Mexican Shelf. Liver tissue presented the highest concentrations of Cd (2.83 μg g-1 wet weight (ww)) and Cu (2.34 μg g-1 ww). For muscle and fin, Cu presented the highest concentrations (0.97 and 1.80 μg g-1 ww, respectively). Liver concentrations were influenced by the maturation stages for the three elements. Immature organisms exhibited lower trace element concentrations than adults. No significant differences were found between sexes, except for Cu concentrations in muscle, where adult females present higher levels than adult males. One muscle sample (2.3 %) exceeded the Mexican Legislation for Hg (1.0 μg g-1 ww) and five muscles samples (11.6 %) exceeded the Mexican limit for Cd (0.5 μg g-1 ww). Meat consumption of this species can be a risk to human health if it is ingested regularly.
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Affiliation(s)
- Christian Vega-Barba
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n, Col. Playa Palo de Sta. Rita, La Paz, Baja California Sur C.P. 23096, Mexico
| | - Federico Páez-Osuna
- Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, P.O. Box 811, Mazatlán 82000, Sinaloa, Mexico; Miembro de El Colegio de Sinaloa, Antonio Rosales 435 pte., Centro Histórico, C.P. 80000 Culiacán, Sinaloa, Mexico
| | - Felipe Galván-Magaña
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n, Col. Playa Palo de Sta. Rita, La Paz, Baja California Sur C.P. 23096, Mexico
| | - Isis Baró-Camarasa
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n, Col. Playa Palo de Sta. Rita, La Paz, Baja California Sur C.P. 23096, Mexico
| | - Bernabé Aguilar-Palomino
- Departamento de Estudios para el Desarrollo Sustentable de Zonas Costeras, Universidad de Guadalajara, Gómez Farías 82, San Patricio-Melaque, Jalisco C.P. 48980, Mexico
| | - Víctor Hugo Galván-Piña
- Departamento de Estudios para el Desarrollo Sustentable de Zonas Costeras, Universidad de Guadalajara, Gómez Farías 82, San Patricio-Melaque, Jalisco C.P. 48980, Mexico
| | - Ana J Marmolejo-Rodríguez
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n, Col. Playa Palo de Sta. Rita, La Paz, Baja California Sur C.P. 23096, Mexico.
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Castro-Rendón RD, Calle-Morán MD, García-Arévalo I, Ordiano-Flores A, Galván-Magaña F. Mercury and Cadmium Concentrations in Muscle Tissue of the Blue Shark (Prionace glauca) in the Central Eastern Pacific Ocean. Biol Trace Elem Res 2022; 200:3400-3411. [PMID: 34599733 DOI: 10.1007/s12011-021-02932-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/14/2021] [Indexed: 03/19/2023]
Abstract
Blue sharks (Prionace glauca) are an important resource in Ecuador's fisheries; however, biological and ecological information of this species in the area is scarce. The goal of this study was to determine Hg and Cd concentration levels in muscle tissue, as well as its relationship with size, sex, and sexual maturity stages. A total of 80 specimens (34 females and 46 males) collected from the Ecuadorian longline fishing fleet between June and December 2012 were examined. Sizes for females ranged from 97 to 280 cm total length, with values of Hg between 0.20 to 2.38 mg kg-1 wet weight (x̄ = 0.71, ± 0.61) and values of Cd between 0.01 and 0.12 mg kg-1 (x̄ = 0.04, ± 0.02). Sizes for males ranged from 137 to 290 cm TL with values of Hg between 0.17 and 2.94 mg kg-1 (x̄ = 0.81, ± 0.68) and Cd concentrations between 0.01 and 0.12 mg kg-1 (x̄ = 0.04, ± 0.03). A Spearman's rank correlation showed a medium positive association between TL and Hg concentrations (ρ = 0.66; p < 0.05), but there was no correlation between TL and Cd concentrations (ρ = 0.00, p < 0.05). Of the analyzed sharks, 46% and 20% had Hg and Cd concentrations, respectively, greater than the limit established by authorities for fishes consumed by humans.
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Affiliation(s)
- Rubén D Castro-Rendón
- Facultad de Artes Y Ciencias Liberales, Universidad de Especialidades Espíritu Santo (UEES), Escuela de Ciencias Ambientales, Km 2.5 vía La Puntilla, C.P. 092301, Guayaquil, Ecuador
| | - Marcos D Calle-Morán
- Facultad de Ciencias del Mar, Programa de Doctorado en Ciencias Con Mención en Recursos Acuáticos, Universidad Autónoma de Sinaloa, Paseo Clausen S/N, C.P. 82000, Mazatlán, Mexico
| | - Isabel García-Arévalo
- Facultad de Ciencias del Mar, Programa de Doctorado en Ciencias Con Mención en Recursos Acuáticos, Universidad Autónoma de Sinaloa, Paseo Clausen S/N, C.P. 82000, Mazatlán, Mexico
- Laboratoire de Biogéochimie Des Contaminants Métalliques, Ifremer, Centre Atlantique, 44311 Cedex 3, Nantes, France
| | - Alfredo Ordiano-Flores
- Centro de Investigación Y Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana No. 3918, Zona Playitas, 22860, Ensenada, C.P, Mexico
| | - Felipe Galván-Magaña
- Instituto Politecnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n. C.P. 23096, La Paz, Mexico.
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9
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Wang MH, Chen CW, Chen CF, Tsai WP, Dong CD. Assessment of trace metal concentrations in Indian Ocean silky sharks Carcharhinus falciformis and their toxicological concerns. MARINE POLLUTION BULLETIN 2022; 178:113571. [PMID: 35358889 DOI: 10.1016/j.marpolbul.2022.113571] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/11/2022] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
This study assessed the concentrations of nine trace metals from juvenile C. falciformis caught from Indian Ocean. This study also discussed the metal pollution index (MPI) and bioconcentration factor (BCF) of each element, and their correlations. Further, the potential health risks of consuming shark muscles (THI) were evaluated. Results showed the mean concentrations of 9 elements as follows: Cu (0.36 ± 0.17), Zn (5.19 ± 16.6), Pb (0.12 ± 0.23), Cd (0.17 ± 0.21), Cr (0.57 ± 1.61), Ni (0.086 ± 0.51), As (1.36 ± 0.83), Co (0.000073 ± 0.0074), and V (0.0024 ± 0.0094) mg/kg ww. The BCF values of the elements were higher than 1, with Co and V being the lowest indicating their bioaccumulative behavior. Correlation analysis showed MPI to be highly correlated with Cu, indicating its greater contributions to the total pollution load. Principal components analysis explained 81.0% of the variability in biometric characteristics and metal concentrations. Health risk assessment for consuming shark muscle in Taiwanese male and female adults suggests potential chronic non-carcinogenic health hazards.
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Affiliation(s)
- Ming-Huang Wang
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Wen-Pei Tsai
- Department of Fisheries Production and Management, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan.
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10
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Cordero-Maldonado C, Espinoza P. Cadmium and lead levels in muscle tissue of blue shark (Prionace glauca) in the Southeastern Pacific Waters. MARINE POLLUTION BULLETIN 2022; 177:113523. [PMID: 35290836 DOI: 10.1016/j.marpolbul.2022.113523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 02/21/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Prionace glauca is a top predator, prone to bioaccumulate trace elements, representing the most captured elasmobranch species for human consumption in Peru. Concentrations of cadmium and lead in the edible muscle tissue of the blue shark captured in the south Peruvian coastal waters and offshore north-central Chile were determined. The Cd and Pb levels varied between 0.004 and 0.014 and 0.004 and 0.03 mg kg-1, respectively. We found direct correlation of Cd concentration with the total length, nevertheless there was no clear relationship regarding sex, seasons, and capture areas. Both metals were below the safety limits for human consumption. The target hazard quotient (THQ) values suggest that its consumption does not represent a risk to the human health. In Peru, this is only the second paper that reports Cd and Pb in sharks. We recommend increasing the sampling by including larger sharks and in other regions of the Peruvian coastline.
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Affiliation(s)
- Cristel Cordero-Maldonado
- Carrera de Biología Marina, Facultad de Ciencias Veterinarias y Biológicas, Universidad Científica del Sur, Lima, Peru.
| | - Pepe Espinoza
- Carrera de Biología Marina, Facultad de Ciencias Veterinarias y Biológicas, Universidad Científica del Sur, Lima, Peru; Instituto del Mar del Perú, Esquina Gamarra con General Valle, Chucuito, Callao, Peru
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11
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Boldrocchi G, Spanu D, Mazzoni M, Omar M, Baneschi I, Boschi C, Zinzula L, Bettinetti R, Monticelli D. Bioaccumulation and biomagnification in elasmobranchs: A concurrent assessment of trophic transfer of trace elements in 12 species from the Indian Ocean. MARINE POLLUTION BULLETIN 2021; 172:112853. [PMID: 34425367 DOI: 10.1016/j.marpolbul.2021.112853] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/29/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
We provided the first multi-species study investigating the presence and organotropism of trace elements in three tissues of 12 elasmobranch species. Shark species showed comparable TE loads, although milk sharks and juvenile scalloped hammerhead sharks exhibited the highest Cd and Hg levels, respectively. Fins accumulated higher levels of Pb, Co, and Cr; muscles higher V, As, and Hg; livers higher Se and Cd levels. The organotropism of TEs calls for cautious when choosing a tissue to be sampled since certain tissues, like fin clips, do not provide reliable surrogate for the internal loads of some TEs. Strong correlations between essential and toxic TEs indicated detoxification mechanisms, while the TMF provided evidence for Hg, As and Se biomagnification along the food-web. Considering the difficulties in assessing elasmobranchs contamination from different areas, the proposed multi-species approach represents a valuable way to estimate the species-specific accumulation and transfer of pollutants in sharks.
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Affiliation(s)
- G Boldrocchi
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio 11, Como, Italy.
| | - D Spanu
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, Como, Italy
| | - M Mazzoni
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio 11, Como, Italy
| | - M Omar
- Centre d'Etude et de Recherche de Djibouti Route de l'aéroport, Djibouti
| | - I Baneschi
- Institute of Geosciences and Earth Resources - National Research Council of Italy, Pisa, Italy
| | - C Boschi
- Institute of Geosciences and Earth Resources - National Research Council of Italy, Pisa, Italy
| | - L Zinzula
- Centro di Educazione Ambientale e alla Sostenibilità Laguna di Nora, Pula, CA, Italy
| | - R Bettinetti
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio 11, Como, Italy.
| | - D Monticelli
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, Como, Italy.
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