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Zhang C, Liu J, Wang X, Li E, Song M, Yang Y, Qin C, Qin J, Chen L. Comprehensive transcriptional and metabolomic analysis reveals the neuroprotective mechanism of dietary gamma-aminobutyric acid response to hypoxic stress in the Chinese mitten crab (Eriocheir sinensis). FISH & SHELLFISH IMMUNOLOGY 2023; 135:108663. [PMID: 36898515 DOI: 10.1016/j.fsi.2023.108663] [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: 12/18/2022] [Revised: 02/07/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Hypoxia is one of the serious stress challenges that aquatic animals face throughout their life. Our previous study found that hypoxia stress could induce neural excitotoxicity and neuronal apoptosis in Eriocheir sinensis, and observed that gamma-aminobutyric acid (GABA) has a positive neuroprotective effect on juvenile crabs under hypoxia. To reveal the neuroprotective pathway and metabolic regulatory mechanism of GABA in E. sinensis exposed to hypoxia stress, an 8-week feeding trial and acute hypoxia challenge were performed. Subsequently, we performed a comprehensive transcriptomic and metabolomic analysis of the thoracic ganglia of juvenile crabs. Differential genes and differential metabolites were co-annotated to 11 KEGG pathways, and further significant analysis showed that only the sphingolipid signaling pathway and the arachidonic acid metabolism pathway were significantly enriched. In the sphingolipid signaling pathway, GABA treatment significantly increased long-chain ceramide content in thoracic ganglia, which exerted neuroprotective effects by activating downstream signals to inhibit hypoxia-induced apoptosis. Moreover, in the arachidonic acid metabolism pathway, GABA could increase the content of neuroprotective active substances and reduce the content of harmful metabolites by regulating the metabolism of arachidonic acid for inflammatory regulation and neuroprotection. Furthermore, the decrease of glucose and lactate levels in the hemolymph suggests the positive role of GABA in metabolic regulation. This study reveals the neuroprotective pathways and possible mechanisms of GABA in juvenile E. sinensis exposed to hypoxia stress and inspires the discovery of new targets for improving hypoxia tolerance in aquatic animals.
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Affiliation(s)
- Cong Zhang
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Jiadai Liu
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Xiaodan Wang
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Erchao Li
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Mingqi Song
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Yiwen Yang
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Chuanjie Qin
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Sichuan, 641100, PR China
| | - Jianguang Qin
- College of Science and Engineering, Flinders University, Adelaide, SA, 5001, Australia
| | - Liqiao Chen
- Laboratory of Aquaculture Nutrition and Environmental Health, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China.
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M K VS, Joseph S, P S A, Ghermandi A, Kumar A. A coastal Ramsar site on transition to hypoxia and tracking pollution sources: a case study of south-west coast of India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 195:45. [PMID: 36305948 DOI: 10.1007/s10661-022-10602-x] [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: 05/10/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Coastal lakes and estuaries are considered economic drivers for coastal communities by delivering invaluable economic and ecosystem services. The coastal ecosystems are facing recurrent hypoxia events (dissolved oxygen; DO < 2.0 mg L-1) and are emerging as a major threat to ecosystem structure and functioning. The Ashtamudi Lake, (area = 56 km2), is one of the Ramsar sites in the State of Kerala and located on the SW coast of India. The waterways are extensively used for backwater tourism and for fishery activities. This paper discusses the spatio-temporal variation of water quality attributes with emphasis on hypoxia during non-monsoon and monsoon seasons. The extent of hypoxia on fishery diversity was discussed. The Southern Zone, adjacent to the urban area, shows the hypoxic condition with higher concentration of BOD, NO3-N, and NH4-N. The hypoxic condition is largely limited to the Southern Zone in both seasons. The occurrence of low DO in the lake is highly related to salinity and organic load in the lake system. The tracking of pollution sources in the lake system was also done through identification of pollution potential zones and found that catchments adjacent to Southern and Western Zones (urban regions) are the major source of pollution. The study suggests that hypoxia is chiefly attributed to anthropogenic interventions in the form of discharge of wastes into the lake causing overloading of nutrients and organic effluents, decrease in the freshwater supply, the absence of proper freshwater mixing or dilution, and effluent discharge from nearby urban centers.
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Affiliation(s)
- Vishnu Sagar M K
- Department of Environmental Sciences, University of Kerala, Thiruvananthapuram, Kerala, India, 695581
| | - Sabu Joseph
- Department of Environmental Sciences, University of Kerala, Thiruvananthapuram, Kerala, India, 695581.
| | - Arunkumar P S
- Department of Environmental Sciences, University of Kerala, Thiruvananthapuram, Kerala, India, 695581
| | - Andrea Ghermandi
- Department of Natural Resources and Environmental Management, University of Haifa, Haifa, Israel
| | - Amit Kumar
- School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing, 210044, China
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Changes in metabolic profiling of whiteleg shrimp (Penaeus vannamei) under hypoxic stress. J Invertebr Pathol 2022; 193:107798. [PMID: 35843291 DOI: 10.1016/j.jip.2022.107798] [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: 03/28/2022] [Revised: 06/13/2022] [Accepted: 07/11/2022] [Indexed: 11/24/2022]
Abstract
Hypoxia is a common concern in shrimp aquaculture, affecting growth and survival. Although recent studies have revealed important insights into hypoxia in shrimp and crustaceans, knowledge gaps remain regarding this stressor at the molecular level. In the present study, a gas chromatography-mass spectrometry (GC-MS)-based metabolomics approach was employed to characterize the metabolic signatures and pathways underlying responses of Pacific white shrimp (Penaeus vannamei) to hypoxia and to identify associated candidate biomarkers. We compared metabolite profiles of shrimp haemolymph before (0 h) and after exposure to hypoxia (1 & 2 h). Dissolved oxygen levels were maintained above 85 % saturation in the control and before hypoxia, and 15 % saturation in the hypoxic stress treatment. Results showed 44 metabolites in shrimp haemolymph that were significantly different between before and after hypoxia exposure. These metabolites were energy-related metabolites (e.g., intermediates of citric acid cycle, lactic acid, alanine), fatty acids and amino acids. Pathway analysis revealed 17 pathways that were significantly affected by hypoxia. The changes in metabolites and pathways indicate a shift from aerobic to anaerobic metabolism, disturbance in amino acid metabolism, osmoregulation, oxidative damage and Warburg effect-like response caused by hypoxic stress. Among the altered metabolites, lactic acid was most different between before and after hypoxia exposure and had the highest accurate value for biomarker identification. Future investigations may validate this molecule as a stress biomarker in aquaculture. This study contributes to a better understanding of hypoxia in shrimp and crustaceans at the metabolic level and provides a base for future metabolomics investigations on hypoxia.
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Tian H, Yuning W, Yang W, Liu F, Yu Y, Ren S, Wang A, Zhang D. c-Jun N-terminal kinase (JNK) in Procambarus clarkii: Molecular characterization and involvement in oxidative stress-induced apoptosis during molting cycle. Comp Biochem Physiol B Biochem Mol Biol 2021; 257:110676. [PMID: 34648929 DOI: 10.1016/j.cbpb.2021.110676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/18/2021] [Accepted: 10/06/2021] [Indexed: 12/13/2022]
Abstract
The present study was conducted to characterize the full-length cDNA of c-Jun N-terminal kinase (JNK) in Procambarus clarkii (Pcjnk) and evaluate its potential function under different molt cycle. The full-length cDNA of Pcjnk covered 2937 bp with an open reading frame of 1320 bp, encoding 439 amino acids. A typical conserved TPY motif (118Thr-Pro-120Tyr) was found in Pcjnk. Quantitative real-time PCR (qRT-PCR) analysis revealed a constitutive expression of Pcjnk in the tested tissue, with the highest expression occurring in the hepatopancreas. Additionally, the present study initially revealed that relative mRNA expression of Pcjnk and apoptosis level were significantly higher in the premolt stage (D1/D2 and D3/D4 stage) as compared to other molt stages. In contrast to the levels of superoxide dismutase (SOD) and malondialdehyde (MDA), catalase (CAT) and glutathione peroxidase (GPX) level decreased significantly from the intermolt stage (C stage) to the premolt stage (D1/D2 and D3/D4 stage), then increased from the premolt stage to the postmolt stage (A and B stage). The results obtained in the present study indicated that molt could cause apoptosis induced by oxidative stress through the activation of JNK in Procambarus clarkii.
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Affiliation(s)
- Hongyan Tian
- Department of Marine Science and Technology, School of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China.
| | - Wang Yuning
- Department of Marine Science and Technology, School of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Wenping Yang
- Department of Marine Science and Technology, School of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Fei Liu
- Department of Marine Science and Technology, School of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Yebing Yu
- Department of Marine Science and Technology, School of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Shengjie Ren
- Department of Marine Science and Technology, School of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Aimin Wang
- Department of Marine Science and Technology, School of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China.
| | - Dingdong Zhang
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
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Impacts of hypoxic events surpass those of future ocean warming and acidification. Nat Ecol Evol 2021; 5:311-321. [PMID: 33432134 DOI: 10.1038/s41559-020-01370-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 12/01/2020] [Indexed: 01/28/2023]
Abstract
Over the past decades, three major challenges to marine life have emerged as a consequence of anthropogenic emissions: ocean warming, acidification and oxygen loss. While most experimental research has targeted the first two stressors, the last remains comparatively neglected. Here, we implemented sequential hierarchical mixed-model meta-analyses (721 control-treatment comparisons) to compare the impacts of oxygen conditions associated with the current and continuously intensifying hypoxic events (1-3.5 O2 mg l-1) with those experimentally yielded by ocean warming (+4 °C) and acidification (-0.4 units) conditions on the basis of IPCC projections (RCP 8.5) for 2100. In contrast to warming and acidification, hypoxic events elicited consistent negative effects relative to control biological performance-survival (-33%), abundance (-65%), development (-51%), metabolism (-33%), growth (-24%) and reproduction (-39%)-across the taxonomic groups (mollusks, crustaceans and fish), ontogenetic stages and climate regions studied. Our findings call for a refocus of global change experimental studies, integrating oxygen concentration drivers as a key factor of ocean change. Given potential combined effects, multistressor designs including gradual and extreme changes are further warranted to fully disclose the future impacts of ocean oxygen loss, warming and acidification.
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Zhao L, Cui C, Liu Q, Sun J, He K, Adam AA, Luo J, Li Z, Wang Y, Yang S. Combined exposure to hypoxia and ammonia aggravated biological effects on glucose metabolism, oxidative stress, inflammation and apoptosis in largemouth bass (Micropterus salmoides). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 224:105514. [PMID: 32502847 DOI: 10.1016/j.aquatox.2020.105514] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
Hypoxia and ammonia are unavoidable environmental factors in aquaculture, and have been shown cause various adverse effects in fish. In the present study, a two-factor crossover experiment was carried out to evaluate the combined effect of hypoxia and ammonia on oxidative stress and glucose metabolism endpoints in largemouth bass. The fish were divided into four experimental groups: hypoxia and ammonia group, hypoxia group, ammonia group, and control group. The results showed that hypoxia and ammonia exposures both induced antioxidant response and oxidative stress (superoxide dismutase [SOD] and catalase [CAT] activities increased first then decreased, and malondialdehyde accumulated) and anaerobic glycolysis (increase of blood glucose, decrease of liver glycogen, accumulation of lactate, and increased lactate dehydrogenase activity). In addition, hypoxia and ammonia upregulated antioxidant enzyme genes (Cu/ZnSOD, CAT, and GPx), apoptosis genes (caspase 3, caspase 8, and caspase 9), as well as inflammatory genes (interleukin [IL]-1β and IL-8) and downregulated an anti-inflammatory gene (IL-10), suggesting that apoptosis and inflammation may be related to oxidative stress. The increased expression of GLUT1, LDH, and MCT4 were induced by hypoxia and ammonia, suggesting that anaerobic glycolysis was increased. Furthermore, fish suffering from hypoxia or ammonia exposure showed some changes in gill tissues histology, and the most severe lesions of gill tissues appeared in simultaneous exposure. Overall, both hypoxia and ammonia affected homeostasis, and simultaneous exposure led to more deleterious effects on largemouth bass than exposure to the individual stressors.
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Affiliation(s)
- Liulan Zhao
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Can Cui
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Qiao Liu
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Junlong Sun
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Kuo He
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Ahmed Abdi Adam
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Jie Luo
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Zhiqiong Li
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Yan Wang
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
| | - Song Yang
- College of Animal Science and Technology, Sichuan Agricultural University (SICAU), Chengdu, Sichuan 611130, China.
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Bao J, Li X, Xing Y, Feng C, Jiang H. Respiratory Metabolism and Antioxidant Response in Chinese Mitten Crab Eriocheir sinensis During Air Exposure and Subsequent Reimmersion. Front Physiol 2019; 10:907. [PMID: 31379609 PMCID: PMC6652117 DOI: 10.3389/fphys.2019.00907] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 07/01/2019] [Indexed: 12/04/2022] Open
Abstract
Chinese mitten crab, Eriocheir sinensis, often suffers from severe air exposure stress during transportation and culture; high mortality occurs due to desiccation. In this study, the effects of air exposure stress (0, 2, 4, 8, and 16 h) and reimmersion (2, 6, 12 h) on respiratory metabolism and antioxidant responses in Chinese mitten crabs were studied under laboratory conditions. The results showed that air exposure and reimmersion had a significant impact on the oxygen consumption rate (OCR), ammonia excretion rate (AER), oxygen to nitrogen ratio (O:N), superoxide dismutase (SOD), catalase (CAT), succinate dehydrogenase (SDH), and lactate dehydrogenase (LDH). Significant interaction between air exposure and reimmersion was observed for OCR, AER, O:N, SOD, CAT, SDH, and LDH in Chinese mitten crab. During the air exposure stage, SOD, CAT, and LDH activities in the gills and hepatopancreas first increased and then decreased as air exposure time increased. All of these parameters were significantly higher in the 4-h air exposure group than those in the control group. All the parameters were significantly lower in the 16-h air exposure group than those in the control group, except LDH in the hepatopancreas. However, SDH activity gradually decreased with increased air exposure time, and all the air exposure groups were markedly lower than those in the control group in the gills. During the reimmersion stage, OCR, AER, and O:N restored to normal levels after 12-h reimmersion, except in the 16-h air exposure group, where OCR and O:N were significantly higher than those in the control group and AER was significantly lower than that in the control group. The LDH activity in all groups restored to normal levels after 12-h reimmersion. The SDH, SOD, and CAT activities of the 2- and 4-h air-exposed groups returned to normal levels after 12-h reimmersion; however, these three parameters were still significantly higher in the 16-h air-exposed group than in the control group in the gills and hepatopancreas. Overall, Chinese mitten crabs reduce aerobic respiration and increase anaerobic respiration capacity during desiccation. Under air exposure stress, Chinese mitten crabs change their energy utilization mode to meet their energy demands and adjust their respiratory metabolism and antioxidant enzymes activities to adapt to adverse environments.
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Affiliation(s)
- Jie Bao
- Liaoning Provincial Key Laboratory of Zoonosis, Department of Aquaculture, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Xiaodong Li
- Liaoning Provincial Key Laboratory of Zoonosis, Department of Aquaculture, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Yuenan Xing
- Liaoning Provincial Key Laboratory of Zoonosis, Department of Aquaculture, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Chengcheng Feng
- Liaoning Provincial Key Laboratory of Zoonosis, Department of Aquaculture, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Hongbo Jiang
- Liaoning Provincial Key Laboratory of Zoonosis, Department of Aquaculture, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
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Evaluation of baseline haemolymph biochemistry, volume and total body energetics to determine an accurate condition index in the black tiger shrimp, Penaeus monodon. Comp Biochem Physiol B Biochem Mol Biol 2019; 228:1-9. [DOI: 10.1016/j.cbpb.2018.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 10/15/2018] [Indexed: 12/30/2022]
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Kumaresan V, Palanisamy R, Pasupuleti M, Arockiaraj J. Impacts of environmental and biological stressors on immune system of Macrobrachium rosenbergii. REVIEWS IN AQUACULTURE 2017; 9:283-307. [DOI: 10.1111/raq.12139] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 12/14/2015] [Indexed: 10/16/2023]
Abstract
AbstractMacrobrachium rosenbergii commonly called giant freshwater prawn is a widely farmed crustacean in freshwater. Similar to other aquatic organisms, their growth and well‐being is influenced by various physical, chemical and biological factors. We discuss about the critical growth limiting factors as well as disease causing agents and the potential immune molecules of M. rosenbergii that are proved to involve in preventing and/or responding to those limiting factors.
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Affiliation(s)
- Venkatesh Kumaresan
- Division of Fisheries Biotechnology & Molecular Biology Department of Biotechnology Faculty of Science and Humanities SRM University Chennai Tamil Nadu India
| | - Rajesh Palanisamy
- Division of Fisheries Biotechnology & Molecular Biology Department of Biotechnology Faculty of Science and Humanities SRM University Chennai Tamil Nadu India
| | - Mukesh Pasupuleti
- Lab PCN 206 Microbiology Division CSIR‐Central Drug Research Institute Lucknow Uttar Pradesh India
| | - Jesu Arockiaraj
- Division of Fisheries Biotechnology & Molecular Biology Department of Biotechnology Faculty of Science and Humanities SRM University Chennai Tamil Nadu India
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Veeck APL, Garcia LO, Baldisserotto B, Zaniboni Filho E, Emanuelli T. Proximate composition and lipid stability of dourado (Salminus brasilensis, Cuvier, 1817) fillets exposed to different levels of ammonia and oxygen in vivo. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:2590-2595. [PMID: 23413148 DOI: 10.1002/jsfa.6085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 01/16/2013] [Accepted: 02/14/2013] [Indexed: 06/01/2023]
Abstract
BACKGROUND The ammonia and oxygen levels of water are physicochemical parameters that affect fish physiology. Thus, we hypothesized that in vivo exposure to stressful ammonia and oxygen levels will affect the post-mortem quality of the fish. Therefore, in this study, the effects of in vivo exposure to stressful ammonia and oxygen levels on the composition and content of thiobarbituric acid reactive substances in fillets from dourado (Salminus brasiliensis) and on the lipid oxidation of these fillets during frozen storage were evaluated. RESULTS Short-term exposure (12 h) to stressful environmental conditions (low oxygen and high ammonia levels) did not change the composition of the flesh. However, longer exposure (15 days) to these stressful conditions caused significant changes in the composition of the flesh. Exposure to a stressful ammonia level before slaughtering increased the susceptibility of the fish fillets to lipid oxidation during frozen storage. In contrast, exposure to low oxygen levels did not increase the lipid oxidation rate of the fillets. CONCLUSION These results indicate that the in vivo exposure to high ammonia levels may reduce the quality and stability of dourado fillets.
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Affiliation(s)
- Ana Paula L Veeck
- Núcleo Integrado de Desenvolvimento em Análises Laboratoriais (NIDAL), Departamento de Tecnologia e Ciência dos Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS, Brazil
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11
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Bonvillain CP, Rutherford DA, Kelso WE, Green CC. Physiological biomarkers of hypoxic stress in red swamp crayfish Procambarus clarkii from field and laboratory experiments. Comp Biochem Physiol A Mol Integr Physiol 2012; 163:15-21. [DOI: 10.1016/j.cbpa.2012.04.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 04/05/2012] [Accepted: 04/10/2012] [Indexed: 11/26/2022]
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12
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Hu Z, Lee JW, Chandran K, Kim S, Khanal SK. Nitrous oxide (N2O) emission from aquaculture: a review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:6470-80. [PMID: 22594516 DOI: 10.1021/es300110x] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nitrous oxide (N(2)O) is an important greenhouse gas (GHG) which has a global warming potential 310 times that of carbon dioxide (CO(2)) over a hundred year lifespan. N(2)O is generated during microbial nitrification and denitrification, which are common in aquaculture systems. To date, few studies have been conducted to quantify N(2)O emission from aquaculture. Additionally, very little is known with respect to the microbial pathways through which N(2)O is formed in aquaculture systems. This review suggests that aquaculture can be an important anthropogenic source of N(2)O emission. The global N(2)O-N emission from aquaculture in 2009 is estimated to be 9.30 × 10(10) g, and will increase to 3.83 × 10(11)g which could account for 5.72% of anthropogenic N(2)O-N emission by 2030 if the aquaculture industry continues to increase at the present annual growth rate (about 7.10%). The possible mechanisms and various factors affecting N(2)O production are summarized, and two possible methods to minimize N(2)O emission, namely aquaponic and biofloc technology aquaculture, are also discussed. The paper concludes with future research directions.
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Affiliation(s)
- Zhen Hu
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
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Fouzi MM, Shariff M, Yusoff FM. Stress Quantification in Penaeus monodon Exposed to Different Levels of Ammonia and Subsequent Infection to WSSV. ACTA ACUST UNITED AC 2012. [DOI: 10.3923/rjvs.2012.13.24] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Lemonnier H, Courties C, Mugnier C, Torréton JP, Herbland A. Nutrient and microbial dynamics in eutrophying shrimp ponds affected or unaffected by vibriosis. MARINE POLLUTION BULLETIN 2010; 60:402-411. [PMID: 19939413 DOI: 10.1016/j.marpolbul.2009.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 10/19/2009] [Accepted: 10/22/2009] [Indexed: 05/28/2023]
Abstract
A field survey was conducted on two intensive shrimp farms using similar technical practices: one (DF) historically affected by a vibriosis, the other (HC) in which the pathogen has been observed although no mortality event has occurred. Because historical data suggest that eutrophication process may directly or indirectly play a role in the disease outbreak, we focussed our research on its dynamics. A higher variability of the phytoplanktonic compartment linked to an imbalance in the molar N:P ratio was observed in farm DF compared to farm HC, implying a modification on the linkage between the bacteria and phytoplankton compartments at DF. The beginning of the mortality outbreak at DF followed a shift from pico- to nanophytoplankton. The organic matter mineralization process at the water-sediment interface may explain the disturbance observed in the water column during eutrophication. The consequences of this disturbance on shrimps' health status and pathogen ecology are discussed.
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Corteel M, Dantas-Lima JJ, Wille M, Alday-Sanz V, Pensaert MB, Sorgeloos P, Nauwynck HJ. Molt stage and cuticle damage influence white spot syndrome virus immersion infection in penaeid shrimp. Vet Microbiol 2009; 137:209-16. [DOI: 10.1016/j.vetmic.2009.01.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 01/06/2009] [Accepted: 01/12/2009] [Indexed: 10/21/2022]
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