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Akrokoh J, Bediako JO, Fafanyo K, Musah-Yussif H, Asubonteng AK, Adjei HO, Ofori AGA, Skov PV, Obirikorang KA. Relatedness of hypoxia and hyperthermia tolerances in the Nile tilapia (Oreochromis niloticus) and their relationships with cardiac and gill traits. Comp Biochem Physiol A Mol Integr Physiol 2024; 294:111648. [PMID: 38643961 DOI: 10.1016/j.cbpa.2024.111648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
In fish, thermal and hypoxia tolerances may be functionally related, as suggested by the oxygen- and capacity-limited thermal tolerance (OCLTT) concept, which explains performance failure at high temperatures due to limitations in oxygen delivery. In this study the interrelatedness of hyperthermia and hypoxia tolerances in the Nile tilapia (Oreochromis niloticus), and their links to cardiorespiratory traits were examined. Different groups of O. niloticus (n = 51) were subjected to hypoxia and hyperthermia challenges and the O2 tension for aquatic surface respiration (ASR pO2) and critical thermal maximum (CTmax) were assessed as measurement endpoints. Gill filament length, total filament number, ventricle mass, length and width were also measured. Tolerance to hypoxia, as evidenced by ASR pO2 thresholds of the individual fish, was highly variable and varied between 0.26 and 3.39 kPa. ASR events increased more profoundly as O2 tensions decreased below 2 kPa. The CTmax values recorded for the O. niloticus individuals ranged from 43.1 to 44.8 °C (Mean: 44.2 ± 0.4 °C). Remarkably, there was a highly significant correlation between ASR pO2 and CTmax in O. niloticus (r = -0.76, p < 0.0001) with ASR pO2 increasing linearly with decreasing CTmax. There were, however, no discernible relationships between the measured cardiorespiratory properties and hypoxia or hyperthermia tolerances. The strong relationship between hypoxia and hyperthermia tolerances in this study may be related to the ability of the cardiorespiratory system to provide oxygen to respiring tissues under thermal stress, and thus provides some support for the OCLTT concept in this species, at least at the level of the entire organism.
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Affiliation(s)
- Jesslyn Akrokoh
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana. https://twitter.com/@missakrokoh
| | - Jedida Osei Bediako
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kelvin Fafanyo
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Harriya Musah-Yussif
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Audrey Korsah Asubonteng
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Henry Owusu Adjei
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Peter Vilhelm Skov
- Technical University of Denmark, DTU Aqua, Section for Aquaculture, The North Sea Research Centre, DK-9850 Hirtshals, Denmark
| | - Kwasi Adu Obirikorang
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
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Jannat R, Zahangir MM, Naziat A, Majharul Islam SM, Abdelazim AM, Mahboub HH, Shahjahan M. Hypoxia alters the upper thermal limits and blood physiology in zebrafish, Danio rerio. J Therm Biol 2024; 121:103837. [PMID: 38552447 DOI: 10.1016/j.jtherbio.2024.103837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 05/26/2024]
Abstract
Hypoxic aquatic environments occur more frequently as a result of climate change, thereby exerting challenges on the physiological and metabolic functions of aquatic animals. In this study, a model fish, zebrafish (Danio rerio) was used to observe the climate-induced hypoxic effect on the upper thermal limit (critical thermal maximum; CTmax), hemoglobin, and blood glucose levels, and abnormalities of erythrocytes at cellular and nuclear level. The value of CTmax decreased significantly under hypoxia (39.10 ± 0.96 °C) compared to normoxia (43.70 ± 0.91 °C). At CTmax, hemoglobin levels were much lower (9.33 ± 0.60 g/dL) and blood glucose levels were significantly higher (194.20 ± 11.33 mg/L) under hypoxia than they were under normoxia and at the beginning of the experiment. Increased frequencies of abnormalities in the erythrocytes at both cellular (fusion, twin, elongated, spindle and tear drop shaped) and nuclear (micronucleus, karyopyknosis, binuclei, nuclear degeneration and notched nuclei) levels were also found under hypoxia compared to normoxia. These results suggest that hypoxic conditions significantly alter the temperature tolerance and subsequent physiology in zebrafish. Our findings will aid in the development of effective management techniques for aquatic environments with minimum oxygen availability.
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Affiliation(s)
- Rayeda Jannat
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymemsingh, 2202, Bangladesh.
| | - Md Mahiuddin Zahangir
- Department of Fish Biology and Biotechnology, Chattogram Veterinary and Animal Sciences University, Chattogram, 4225, Bangladesh.
| | - Azmaien Naziat
- Department of Fish Biology and Biotechnology, Chattogram Veterinary and Animal Sciences University, Chattogram, 4225, Bangladesh.
| | - S M Majharul Islam
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymemsingh, 2202, Bangladesh.
| | - Aaser M Abdelazim
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Bisha, Bisha, 67714, P.O. Box 255, Saudi Arabia.
| | - Heba H Mahboub
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, PO Box 44519, Zagazig, 4511, Sharkia, Egypt.
| | - Md Shahjahan
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymemsingh, 2202, Bangladesh.
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Souza RJF, Matos ER, da Silva Souza AL, Fazzi-Gomes PF, de Melo NFAC, Owatari MS, Palheta GDA, Takata R, Sterzelecki FC. Dietary effect of multi-strain prebiotics and probiotics on growth, hemato-biochemical parameters, intestinal histomorphometry, and resistance to hypoxia in juvenile tambaqui (Colossoma macropomum). Vet Res Commun 2024; 48:1061-1072. [PMID: 38072900 DOI: 10.1007/s11259-023-10279-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/05/2023] [Indexed: 04/07/2024]
Abstract
This study evaluated the effects of a multi-strain prebiotics and probiotics on the diet of tambaqui Colossoma macropomum. One hundred and fifty juvenile tambaqui (20.2 ± 3.6 g and 10.32 ± 5.78 cm) were randomly distributed in 15 experimental units with a volume of 80 L and fed for 45 days with a diet containing the symbiotic additive at five inclusion levels (0, 2, 4, 6 and 8 g kg feed- 1). At the end of the period, growth performance, survival, hemato-biochemical and intestinal parameters, as well as the fish's resistance to stress were evaluated. The additive did not alter the growth performance, hemato-biochemical and intestinal parameters of the tambaqui. However, the hemato-biochemical parameters of aspartate aminotransferase (AST), plasma protein, hematocrit, glucose, triglycerides and cholesterol showed differences between treatments after the stress challenge. AST increased significantly during challenge and post-challenge. Plasma protein increased significantly during and after the challenge. The hematocrit was highest at 48 h after the challenge and lowest in the 2 g, 6 g and 8 g groups. Glucose was significantly reduced 24 h after the challenge, while triglycerides were lower 24 h and 48 h after the challenge. Cholesterol increased significantly in the challenge. There was an interaction between the factors sampling time and symbiotic concentration for hematocrit and glucose. In hypoxic stress situations, the 2 g concentration was more favorable for the fish. We recommend further studies with 2 g kg feed- 1 in trials lasting more than 45 days.
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Affiliation(s)
- Rafael José Furtado Souza
- Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Instituto Socioambiental e dos Recursos Hídricos, Avenida Presidente Tancredo Neves, Nº 2501 Bairro: Terra Firme Cep: 66, Belém, PA, 077-830, Brasil
| | - Edilson Rodrigues Matos
- Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Instituto Socioambiental e dos Recursos Hídricos, Avenida Presidente Tancredo Neves, Nº 2501 Bairro: Terra Firme Cep: 66, Belém, PA, 077-830, Brasil
| | - Aldry Lorran da Silva Souza
- Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Instituto Socioambiental e dos Recursos Hídricos, Avenida Presidente Tancredo Neves, Nº 2501 Bairro: Terra Firme Cep: 66, Belém, PA, 077-830, Brasil
| | - Paola Fabiana Fazzi-Gomes
- Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Instituto Socioambiental e dos Recursos Hídricos, Avenida Presidente Tancredo Neves, Nº 2501 Bairro: Terra Firme Cep: 66, Belém, PA, 077-830, Brasil
| | - Nuno Filipe Alves Correia de Melo
- Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Instituto Socioambiental e dos Recursos Hídricos, Avenida Presidente Tancredo Neves, Nº 2501 Bairro: Terra Firme Cep: 66, Belém, PA, 077-830, Brasil
| | - Marco Shizuo Owatari
- Aquaculture Department, Aquatic Organisms Health Laboratory - AQUOS, Federal University of Santa Catarina (CCA/UFSC), Rodovia Admar Gonzaga 1346, Florianópolis, SC, 88040-900, Brazil.
| | - Glauber David Almeida Palheta
- Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Instituto Socioambiental e dos Recursos Hídricos, Avenida Presidente Tancredo Neves, Nº 2501 Bairro: Terra Firme Cep: 66, Belém, PA, 077-830, Brasil
| | - Rodrigo Takata
- Fundação Instituto de Pesca do Estado do Rio de Janeiro -FIPERJ, Avenida Presidente Vargas, 197, Cordeiro, RJ, CEP 28540000, Brasil
| | - Fabio Carneiro Sterzelecki
- Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Instituto Socioambiental e dos Recursos Hídricos, Avenida Presidente Tancredo Neves, Nº 2501 Bairro: Terra Firme Cep: 66, Belém, PA, 077-830, Brasil
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Alak G, Kara A, Akköse A, Gelen SU, Tanas ŞT, Uçar A, Parlak V, Atamanalp M. Effect of climate change on fillet quality and shelf-life of Oncorhynchus mykiss under controlled conditions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:1511-1520. [PMID: 37804144 DOI: 10.1002/jsfa.13034] [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: 06/06/2023] [Revised: 09/16/2023] [Accepted: 10/07/2023] [Indexed: 10/09/2023]
Abstract
BACKGROUND Temperature, which affects numerous physiological processes, has been described as the 'main ecological factor' for fish. The aim of this modeling study is to explore the impact of climate-induced temperature changes on fish fillet quality and shelf life. RESULTS Temperature stress in rainbow trout affected ash and moisture, and inhibited myofibril fragmentation in the fillets. However, with the increase in temperature, there was a decrease in the total amount of saturated fatty acids (∑SFA) and there were significant increases in the total amount of omega 3 (∑n3) and 22:6n-3 (DHA). It was determined that temperature increase had a negative effect on color, texture, water-holding capacity, water activity, pH, lactic acid, and glycogen levels in fillets, and it had a positive effect by delaying microbial spoilage, especially in cold storage. CONCLUSION This study suggest that the effects of climate change on product quality and shelf life in fish requires further research. It highlights knowledge gaps to guide future research in this emerging field. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Gonca Alak
- Department of Seafood Processing, Faculty of Fisheries, Atatürk University, Erzurum, Turkey
| | - Ayşe Kara
- Department of Seafood Processing, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Ahmet Akköse
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, Erzurum, Turkey
| | - Sevda Urçar Gelen
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Şeyda Tacer Tanas
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkey
| | - Arzu Uçar
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkey
| | - Veysel Parlak
- Department of Basic Sciences, Faculty of Fisheries, Atatürk University, Erzurum, Turkey
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkey
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Alak G, Özgeriş FB, Uçar A, Parlak V, Kocaman EM, Özcan S, Atamanalp M. Effect of climate change on hematotoxicity/hepatoxicity oxidative stress, Oncorhynchus mykiss, under controlled conditions. PLoS One 2023; 18:e0294656. [PMID: 38032944 PMCID: PMC10688713 DOI: 10.1371/journal.pone.0294656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
Described as the 'main ecological factor', temperature, strongly affects the physiological stress responses of fish. In order to evaluate the effects of temperature variations on fish culture and food value chain, the present study was designed as a climate change model. Furthermore, the present study provides a theoretical basis for a better understanding of the mechanisms of the environmentally induced changes. In this direction, we examined the blood physiology and oxidative stress responses induced by temperature variation in the rainbow trout, a temperature-sensitive cold-water fish. The obtained results showed that climate changes promoted the inhibited activities' expressions and the development of potential tissue and hematological defense mechanisms against temperature-induced toxic damage. This study showed that climate change could be a subset of the studies on the stress physiology in aquaculture, which can be developed for new experimental designs and research collaborations. Furthermore, it highlights knowledge gaps to guide future research in this emerging field.
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Affiliation(s)
- Gonca Alak
- Department of Seafood Processing, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Fatma Betül Özgeriş
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Atatürk University, Erzurum, Turkiye
| | - Arzu Uçar
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Veysel Parlak
- Department of Basic Sciences, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Esat Mahmut Kocaman
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Sinan Özcan
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
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Guo K, Zhang R, Luo L, Wang S, Xu W, Zhao Z. Effects of Thermal Stress on the Antioxidant Capacity, Blood Biochemistry, Intestinal Microbiota and Metabolomic Responses of Luciobarbus capito. Antioxidants (Basel) 2023; 12:antiox12010198. [PMID: 36671059 PMCID: PMC9854975 DOI: 10.3390/antiox12010198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/23/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
The rise in water temperature caused by global warming is seriously threatening the development of aquatic animals. However, the physiological response mechanism behind the adverse effects of thermal conditions on L. capito remains unclear. In this study, we investigated the physiological responses of L. capito exposed to thermal stress via biochemical analyses and intestinal microbiota and liver LC-MS metabolomics. The results show that the superoxide dismutase (SOD) and catalase (CAT) activities significantly decrease, while the malondialdehyde (MDA) content, aspartate aminotransferase (AST), acid phosphatase (ACP), alanine aminotransferase (ALT), and albumin (ALB) activities, and glucose (Glu) level significantly increase. Obvious variations in the intestinal microbiota were observed after stress exposure, with increased levels of Proteobacteria and Bacteroidota and decreased levels of Firmicutes, Fusobacteriota, and Actinobacteriota, while levels of several genera of pathogenic bacteria increased. Liver metabolomic analysis showed that stress exposure disturbed metabolic processes, especially of amino acids and lipids. The results of this study indicated that thermal stress caused oxidative stress, disturbed blood biological functioning and intestinal microbiota balance, and damaged amino acids and lipids metabolism of liver in L. capito.
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Affiliation(s)
- Kun Guo
- Key Open Laboratory of Cold Water Fish Germplasm Resources and Breeding of Heilongjiang Province, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
- Engineering Technology Research Center of Saline-Alkaline Water Fisheries (Harbin), Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Rui Zhang
- Key Open Laboratory of Cold Water Fish Germplasm Resources and Breeding of Heilongjiang Province, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
- Engineering Technology Research Center of Saline-Alkaline Water Fisheries (Harbin), Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Liang Luo
- Key Open Laboratory of Cold Water Fish Germplasm Resources and Breeding of Heilongjiang Province, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
- Engineering Technology Research Center of Saline-Alkaline Water Fisheries (Harbin), Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Shihui Wang
- Key Open Laboratory of Cold Water Fish Germplasm Resources and Breeding of Heilongjiang Province, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
- Engineering Technology Research Center of Saline-Alkaline Water Fisheries (Harbin), Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Wei Xu
- Key Open Laboratory of Cold Water Fish Germplasm Resources and Breeding of Heilongjiang Province, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
- Engineering Technology Research Center of Saline-Alkaline Water Fisheries (Harbin), Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Zhigang Zhao
- Key Open Laboratory of Cold Water Fish Germplasm Resources and Breeding of Heilongjiang Province, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
- Engineering Technology Research Center of Saline-Alkaline Water Fisheries (Harbin), Chinese Academy of Fishery Sciences, Harbin 150070, China
- Correspondence:
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Effects of long-term exposure to high temperature on growth performance, chemical composition, hematological and histological changes, and physiological responses in hybrid catfish [♂Clarias gariepinus (Burchell, 1822) ×♀C. macrocephalus (Günther, 1864)]. J Therm Biol 2022; 105:103226. [DOI: 10.1016/j.jtherbio.2022.103226] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 02/07/2022] [Accepted: 03/10/2022] [Indexed: 12/12/2022]
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Identification of quantitative trait loci associated with upper temperature tolerance in turbot, Scophthalmus maximus. Sci Rep 2021; 11:21920. [PMID: 34753974 PMCID: PMC8578632 DOI: 10.1038/s41598-021-01062-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 10/01/2021] [Indexed: 01/12/2023] Open
Abstract
Temperature tolerance is an important trait from both an economic and evolutionary perspective in fish. Because of difficulties with measurements, genome-wide selection using quantitative trait loci (QTLs) affecting Upper temperature tolerance may be an alternative for genetic improvement. Turbot Scophthalmus maximus (L.) is a cold-water marine fish with high economic value in Europe and Asia. The genetic bases of upper temperature tolerance (UTTs) traits have been rarely studied. In this study, we constructed a genetic linkage map of turbot using simple sequence repeats (SSRs) and single nucleotide polymorphism (SNP) markers. A total of 190 SSR and 8,123 SNP were assigned to 22 linkage groups (LGs) of a consensus map, which spanned 3,648.29 cM of the turbot genome, with an average interval of 0.44 cM. Moreover, we re-anchored genome sequences, allowing 93.8% physical sequences to be clustered into 22 turbot pseudo-chromosomes. A high synteny was observed between two assemblies from the literature. QTL mapping and validation analysis identified thirteen QLTs which are major effect QTLs, of these, 206 linked SNP loci, and two linked SSR loci were considered to have significant QTL effects. Association analysis for UTTs with 129 QTL markers was performed for different families, results showed that eight SNP loci were significantly correlated with UTT, which markers could be helpful in selecting thermal tolerant breeds of turbot. 1,363 gene sequences were genomically annotated, and 26 QTL markers were annotated. We believe these genes could be valuable candidates affecting high temperatures, providing valuable genomic resources for the study of genetic mechanisms regulating thermal stress. Similarly, they may be used in marker-assisted selection (MAS) programs to improve turbot performance.
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Temporal variations in glucose level, oxidative stress and antioxidant profile of Koi carps (Cyprinus carpio var koi) in response to hypoxic tolerance. Biol Futur 2021; 72:421-429. [PMID: 34554486 DOI: 10.1007/s42977-021-00068-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
Biochemical analyses were conducted temporally to understand the impact of prolonged hypoxic environment on gill and white muscle of juvenile Koi carps (Cyprinus carpio var koi). The 16-day study involved quantification of Glucose (GLU), oxidative stress (Lipid Peroxidation-LPO) and antioxidant profile (Catalase-CAT, Glutathione-GSH, Glutathione-S-Transferase-GST) every 96th hour to understand the physiological consequences of hypoxic environment compared to normoxia (Control). There was no mortality throughout the study period, however, fishes were physically exhausted and exhibited Aquatic Surface Respiration (ASR) after day 8. Reduction in glucose levels was observed for both the tissues from day 4 to 16. LPO values increased in gill from day 4 to 12 followed by decrease on day 16. Catalase values reduced in gill from day 4 to 12 with an abrupt spike on day 16. Among the glutathione antioxidants, negligible GST activity was observed for day 12 and 16 in gill and muscle, while day 4 and 8 revealed fluctuations in GSH for both the tissues. The study showed tissue-specific differential response to stress because of a variance in the evaluated biomarkers in gill and muscle. Understanding the extent of physiological response to progressive oxygen disruption is essential for best practices in pisciculture because its availability is a critical factor impacting fish health which is congruent to the results of this study.
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10
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Shahjahan M, Zahangir MM, Islam SMM, Ashaf-Ud-Doulah M, Ando H. Higher acclimation temperature affects growth of rohu (Labeorohita) through suppression of GH and IGFs genes expression actuating stress response. J Therm Biol 2021; 100:103032. [PMID: 34503781 DOI: 10.1016/j.jtherbio.2021.103032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/24/2021] [Accepted: 06/13/2021] [Indexed: 11/28/2022]
Abstract
Water temperature alone can affect the growth, metabolic rates and physiological responses of aquatic organisms. Our earlier study reported that higher temperature affects cellular and hemato-biochemical responses in rohu, Labeo rohita. In this backdrop, the present study assessed the effect of higher acclimation temperature on the regulatory mechanisms of growth and stress responses of juvenile L. rohita acclimatized in three temperature conditions (30 °C, 33 °C, and 36 °C) for a period of 30 days. The relative expression of genes for growth hormone (GH), insulin-like growth factors (IGF-1 and IGF-2) and heat shock proteins (hsp70 and hsp90) were measured by real-time quantitative PCR. The results revealed that the highest acclimation temperature (36 °C) significantly decreased the weight gain (WG) and specific growth rate (SGR), and increased the feed conversion ratio (FCR) compared to 30 °C (control), while increased WG, SGR and lowered FCR were observed in fish reared at the intermediate temperature (33 °C) compared to 30 °C. Similarly, the GH gene expression in the pituitary was significantly decreased and increased at 36 °C and 33 °C, respectively as compared to 30 °C. A significantly lower expression of IGF-1 and IGF-2, and higher expression of hsp70 and hsp90 were observed in the liver of fish at 36 °C. The results of the present study indicate that although slightly elevated temperature promotes the growth of juvenile L. rohita, the higher acclimation temperature may induce stress response and impair growth performance by suppressing GH/IGF system.
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Affiliation(s)
- Md Shahjahan
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.
| | - Md Mahiuddin Zahangir
- Marine Biological Station, Sado Island Center for Ecological Sustainability, Niigata University, Sado, Niigata, 952-2135, Japan; Department of Fish Biology and Biotechnology, Faculty of Fisheries, Chattogram Veterinary and Animal Sciences University, Chattogram, 4225, Bangladesh
| | - S M Majharul Islam
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Mohammad Ashaf-Ud-Doulah
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Hironori Ando
- Marine Biological Station, Sado Island Center for Ecological Sustainability, Niigata University, Sado, Niigata, 952-2135, Japan
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Auer SK, Agreda E, Chen AH, Irshad M, Solowey J. Late-stage pregnancy reduces upper thermal tolerance in a live-bearing fish. J Therm Biol 2021; 99:103022. [PMID: 34420649 DOI: 10.1016/j.jtherbio.2021.103022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 04/23/2021] [Accepted: 05/30/2021] [Indexed: 10/21/2022]
Abstract
Upper thermal limits are considered a key determinant of a population's ability to persist in the face of extreme heat events. However, these limits differ considerably among individuals within a population, and the mechanisms underlying this differential sensitivity are not well understood. Upper thermal tolerance in aquatic ectotherms is thought to be determined by a mismatch between oxygen supply and the increased metabolic demands associated with warmer waters. As such, tolerance is expected to decline during reproduction given the heightened oxygen demand for gamete production and maintenance. Among live-bearing species, upper thermal tolerance of reproductive adults may decline even further after fertilization due to the cost of meeting the increasing oxygen demands of developing embryos. We examined the upper thermal tolerance of live-bearing female Trinidadian guppies at different stages of reproduction and found that critical thermal maximum was similar during the egg yolking and early embryos stage but then declined by almost 0.5 °C during late pregnancy when oxygen demands are the greatest. These results are consistent with the hypothesis that oxygen limitation sets thermal limits and show that reproduction is associated with a decline in upper thermal tolerance.
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Zhu X, Liu P, Hou X, Zhang J, Lv J, Lu W, Zeng Q, Huang X, Xing Q, Bao Z. Genome-Wide Association Study Reveals PC4 as the Candidate Gene for Thermal Tolerance in Bay Scallop ( Argopecten irradians irradians). Front Genet 2021; 12:650045. [PMID: 34349776 PMCID: PMC8328476 DOI: 10.3389/fgene.2021.650045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 06/28/2021] [Indexed: 11/30/2022] Open
Abstract
The increasing sea temperature caused by global warming has resulted in severe mortalities in maricultural scallops. Therefore, improving thermal tolerance has become an active research area in the scallop farming industry. Bay scallop (Argopecten irradians irradians) was introduced into China in 1982 and has developed into a vast aquaculture industry in northern China. To date, genetic studies on thermal tolerance in bay scallops are limited, and no systematic screening of thermal tolerance-related loci or genes has been conducted in this species. In the present study, we conducted a genome-wide association study (GWAS) for thermal tolerance using the Arrhenius break temperature (ABT) indicators of 435 bay scallops and 38,011 single nucleotide polymorphism (SNP) markers. The GWAS identified 1,906 significant thermal tolerance-associated SNPs located in 16 chromosomes of bay scallop. Gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses showed that 638 genes were enriched in 42 GO terms, while 549 annotated genes were enriched in aggregation pathways. Additionally, the SNP (15-5091-20379557-1) with the lowest P value was located in the transcriptional coactivator p15 (PC4) gene, which is involved in regulating DNA damage repair and stabilizing genome functions. Further analysis in another population identified two new thermal tolerance-associated SNPs in the first coding sequence of PC4 in bay scallops (AiPC4). Moreover, AiPC4 expression levels were significantly correlated (r = 0.675–0.962; P < 0.05) with the ABT values of the examined bay scallops. Our data suggest that AiPC4 might be a positive regulator of thermal tolerance and a potential candidate gene for molecular breeding in bay scallop aiming at thermal tolerance improvement.
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Affiliation(s)
- Xinghai Zhu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Pingping Liu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiujiang Hou
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Junhao Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jia Lv
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Wei Lu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Qifan Zeng
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiaoting Huang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Qiang Xing
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Islam SMM, Zahangir MM, Ashaf-Ud-Doulah M, Khatun MM, Shahjahan M. Extreme warm acclimation temperature alters oxygen consumption, micronucleus formation in erythrocytes, and gill morphology of rohu (Labeo rohita) fingerlings. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2323-2330. [PMID: 33006002 DOI: 10.1007/s10695-020-00886-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Experiencing the seasonal variation and rapid global warming in the tropical climate is a common phenomenon which challenged the aquatic organisms to adapt the physiology and behavior. To investigate the effect of high-temperature acclimation, we selected Indian major carp, rohu (Labeo rohita), a commercially important freshwater aquaculture species. Oxygen consumptions, micronucleus formation in erythrocytes, and gill histopathology were observed in L. rohita fingerlings acclimated at three temperatures (30, 33, and 36 °C) for 30 days. Results showed that the highest acclimated temperature (36 °C) induced higher oxygen consumption and increased frequency of micronucleus formation in erythrocytes. Severity of different histological alterations (hyperplasia, epithelial necrosis, telangiectasis, epithelial lifting, and hypertrophy of chloride cells) in the gills was found to be increased in the highest acclimated temperature (36 °C). These findings indicate the temperature induced adaptive responses and climate vulnerability in a changing environment.
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Affiliation(s)
- S M Majharul Islam
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Md Mahiuddin Zahangir
- Department of Fish Biology and Biotechnology, Faculty of Fisheries, Chattogram Veterinary and Animal Sciences University, Chattogram, 4225, Bangladesh
| | - Mohammad Ashaf-Ud-Doulah
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Mt Marufa Khatun
- Department of Aquatic Animal Health Management, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, 1207, Bangladesh
| | - Md Shahjahan
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.
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