Kodjo N'Souvi , Chen Sun , Yussuan Manuel Rivero Rivero
{"title":"Development of marine small-scale fisheries in Togo: An examination of the efficiency of fishermen at the new fishing port of Lomé and the necessity of fisheries co-management","authors":"Kodjo N'Souvi , Chen Sun , Yussuan Manuel Rivero Rivero","doi":"10.1016/j.aaf.2023.07.009","DOIUrl":"10.1016/j.aaf.2023.07.009","url":null,"abstract":"<div><div>Small-scale fisheries play a crucial role in providing fish protein for both consumers and coastal communities in Togo. However, the fishermen's revenue is relatively low compared to their expectations. Assessing changes in the technical efficiency is crucial for decision-making, particularly in light of the depletion of natural resources and the need for structural improvements. This study examines the technical efficiency of small-scale fishermen at the new fishing port in Lomé. The primary data were collected through a cross-sectional survey of 82 randomly selected fishermen. The data were analyzed using descriptive method. Subsequently, a Stochastic Frontier Analysis (SFA) was employed to identify the factors contributing to the inefficiency of these small-scale fishermen. The results indicate that only two variables, namely the fishing hours per month and boat ownership (being a skipper), have a statistically significant positive impact on the fishermen's monthly income. The inefficiency model derived from the SFA regression showed that fishery subsidies and cooperative membership positively influence technical efficiency, whereas the duration of fishing trip (number of days at sea and number of trips per month) and boat length negatively influence efficiency. Overall, the results suggest that the government should review fishery subsidy policies to enhance fishermen's technical efficiency while ensuring the sustainability of fisheries. Additionally, we identify another key area for potential policy interventions, which includes promoting and supporting cooperative membership among the fishermen. This could provide social support, an organizational structure for communication, co-management, and collective decision-making.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 344-353"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72705681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mayra L. Pazmiño , Leticia Chico-Santamarta , Andrea Boero , Angel D. Ramirez
{"title":"Environmental life cycle assessment and potential improvement measures in the shrimp and prawn aquaculture sector: A literature review","authors":"Mayra L. Pazmiño , Leticia Chico-Santamarta , Andrea Boero , Angel D. Ramirez","doi":"10.1016/j.aaf.2024.06.003","DOIUrl":"10.1016/j.aaf.2024.06.003","url":null,"abstract":"<div><div>The shrimp and prawn aquaculture sector is a growing component of the global food supply. However, this ongoing growth can lead to environmental implications. Life Cycle Assessment (LCA) enables the assessment of these consequences by providing environmental information about the entire value chain. Furthermore, LCA highlights the improvements in environmental performance. This study aims to analyze the literature on LCA of shrimp production at different locations to assess methodological approaches such as functional unit and system boundaries, inventory data collection, impact categories evaluated, and main findings. A literature review in Scopus databases is performed to achieve this aim. Among the reviewed studies, it is observed that the scope of most of them encompasses everything from hatchery to farm gate. Some cases include packaging and transport to the point of destination. The consumption and waste treatment stages have been included in only two cases. The most analyzed impact categories are climate change, eutrophication, and acidification. The critical spots identified are feed formulation and farm energy use. The shrimp aquaculture sector could enhance its environmental performance by incorporating raw materials that replace the consumption of fishmeal and soybean meal in feeds with more sustainable alternatives. The adequate adjustment of the feed conversion ratio could support mitigating the amount of sediment and unconsumed feed, thereby reducing nutrient concentration in discharges. Renewable energy sources could be employed to cover the on-farm demands.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 183-201"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141707790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Meijuan Shi , Xiucai Hu , Rongrong Liu , Yanjing Yang, Aijun Lv
{"title":"Characterization of gill transcriptome, SSR/SNP markers and expression analysis of lysozyme LysC gene from Carassius auratus upon Aeromonas hydrophila infection","authors":"Meijuan Shi , Xiucai Hu , Rongrong Liu , Yanjing Yang, Aijun Lv","doi":"10.1016/j.aaf.2023.08.011","DOIUrl":"10.1016/j.aaf.2023.08.011","url":null,"abstract":"<div><div>The gills are large mucosal surfaces and play primary roles in respiration and immune defences. However, the molecular mechanism for gills of fish needs still to be explored. In the present study, transcriptomic analysis and identification of SSR and SNP markers were performed in the gills of crucian carp <em>Carassius auratus</em>. The results showed a total of 84,259 unigenes were annotated to NCBI NR, KEGG and GO databases for 55,283, 39,303, 33,388, respectively. Enriched KEGG pathway analyses for the identified genes showed the mainly functional modules such as metabolism, cellular processes, environmental adaptation, genetic processing, organismal and immune systems. Moreover, 22,102 SSRs (simple sequence repeats) were potentially identified and 9776 (44.2%) were accounted for the most dinucleotides. Transition and transversion sites of SNPs (single nucleotide polymorphisms) were also observed. Tissue distribution showed that the expression level of lysozyme <em>LysC</em> gene was relatively high in intestine, liver, spleen and kidney tissues and up-regulated in gills, skin and brain after the <em>A. hydrophila</em> infection. We discovered the immune-related pathways through the transcriptome analysis in the gills of crucian carp, some potential SSR/SNP markers were identified, and lysozyme gene predominantly expressed in mucosal immune organs (eg., gills, skin, intestine) responded to <em>A. hydrophila</em> infection. To the best of our knowledge, this was the detailed report on the molecular characteristics in crucian carp gills with transcriptome analysis, which will not only provide a scientific reference for further understanding the local defense mechanism, but also lay a foundation for molecular marker-assisted breeding in fish.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 219-227"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134962148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fabio Meurer , Jailson Novodworski , Robie Allan Bombardelli
{"title":"Protein requirements in Nile tilapia (Oreochromis niloticus) during production and reproduction phases","authors":"Fabio Meurer , Jailson Novodworski , Robie Allan Bombardelli","doi":"10.1016/j.aaf.2024.03.004","DOIUrl":"10.1016/j.aaf.2024.03.004","url":null,"abstract":"<div><div>The accelerated growth of global aquaculture has boosted the production chain of Nile tilapia (<em>Oreochromis niloticus</em>), currently the third most cultivated species worldwide. This fish plays a crucial role in global food security. Protein is the main fish diet nutrient, and its quality, as well as protein level variations, directly and significantly affect the productive chain of this species. In this study, we conducted a comprehensive review of protein requirements at different tilapia development stages, underscoring the fundamental importance of a balanced diet to promote efficient growth. The study identified protein requirement variations based on weight, age, and different tilapia farming systems. In addition, the challenges associated with formulating balanced diets are discussed, especially in the face of the scarcity of traditional protein sources, such as fishmeal. Several factors are considered in this review, including tilapia development stage, rearing system, stocking density, ingredient quality, specific tilapia nutritional requirements and strains, feed management, temperature, and water quality. A gradual decrease in protein requirements is observed as fish grow and reach a minimum point during the growth phase, followed by a slight increase during the subsequent fattening phase. Tilapia protein requirements are influenced by various factors, including growth phase and farming system characteristics. Identifying the ideal protein levels at each stage is crucial for guiding sustainable tilapia aquaculture practices and enhancing the overall production efficiency of the species.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 171-182"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140794975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Otávio Augusto Lacerda Ferreira Pimentel , Valdemir Queiroz de Oliveira , Rildo José Vasconcelos de Andrade , Carlos Yure Barbosa de Oliveira , Elizabeth Pereira dos Santos , Alitiene Moura Lemos Pereira , Luis Otavio Brito , Alfredo Olivera Gálvez
{"title":"Plankton community in Penaeus vannamei nurseries with synbiotic system under different frequencies of adjustment on Ca:Mg:K ratio in low salinity water","authors":"Otávio Augusto Lacerda Ferreira Pimentel , Valdemir Queiroz de Oliveira , Rildo José Vasconcelos de Andrade , Carlos Yure Barbosa de Oliveira , Elizabeth Pereira dos Santos , Alitiene Moura Lemos Pereira , Luis Otavio Brito , Alfredo Olivera Gálvez","doi":"10.1016/j.aaf.2023.09.003","DOIUrl":"10.1016/j.aaf.2023.09.003","url":null,"abstract":"<div><div>The aim of this study was to evaluate plankton communities in <em>Penaeus vannamei</em> nurseries under different frequencies of adjustment on Ca:Mg:K ratio in low salinity water and with synbiotic system. A nursery culture was carried out for 40 days, using 2000 shrimp m⁻³. Following treatments were established: 1IA (Ca:Mg:K ratio adjustment to 1:3:1 on day 1); 2IA (Ca:Mg:K ratio adjustment to 1:3:1 on day 1 and day 20); 3IA (Ca:Mg:K ratio adjustment to 1:3:1 on day 1, day 10, and day 20); SW (seawater - salinity of 31 g L<sup>−</sup><sup>1</sup>); and SWD (seawater diluted to a salinity of 2.3 g L<sup>−</sup><sup>1</sup>). Rice bran processed by probiotic microorganisms was used as an organic carbon source. Treatments did not have a significant effect on phytoplankton and zooplankton composition. However, plankton composition was significantly different over the experimental course. A reduced abundance of Cyanophyta was observed compared to traditional aquaculture systems. This can be explained by the probiotic bacteria addition to the system, along with fertilization, which may have limited the growth of this harmful algae. Throughout the experiment, zooplankton community had a dominance by protozoan microorganisms, such as amoebae and ciliates. The presence of copepods and rotifers was also observed throughout the experimental course. This proves that the use of the synbiotic system provides conditions for the microbial loop development, mimicking a natural environment. Different adjustment frequencies in the water Ca:Mg:K ratio do not significantly change plankton composition in <em>P. vannamei</em> intensive nurseries using low salinity water and synbiotic system. Temporal variation in plankton composition probably occurred due to fertilization of the system with an organic carbon source. The use of the synbiotic system proved to be efficient in microbial loop development, providing the growth of a high load of microorganisms that can influence water quality and shrimp growth in low salinity water.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 289-297"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135848626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kristine Cerbule , Bent Herrmann , Eduardo Grimaldo , Leif Grimsmo , Junita D. Karlsen
{"title":"Does soak time influence the effect of artificial light on catch efficiency in snow crab (Chionoecetes opilio) pot fishery?","authors":"Kristine Cerbule , Bent Herrmann , Eduardo Grimaldo , Leif Grimsmo , Junita D. Karlsen","doi":"10.1016/j.aaf.2023.11.004","DOIUrl":"10.1016/j.aaf.2023.11.004","url":null,"abstract":"<div><div>In the Barents Sea commercial snow crab (<em>Chionoecetes opilio</em>) fishery, an increase in catch efficiency of the conical pots is important for the profitability of the industry. Light emitting diodes (LEDs) have previously been tested for increasing catch efficiency of the snow crab pots. These earlier experiments have shown varying results ranging from large increase in snow crab catches to no significant effect. These experiments have used different pot soaking times; however, the soaking time might affect the impact of LEDs on catch efficiency. In commercial snow crab fishery, the pot soak time is varying which has not been considered in earlier experiments testing the effect of LEDs. Therefore, this study examined whether pot soaking time can explain the observed differences in relative catch efficiency of snow crab pots with and without LEDs with soak times ranging from 2 to 14 days in the Barents Sea snow crab fishery. For target sizes of snow crab (≥95 mm carapace width), results indicated an increase in catch efficiency between 10 and 30% for pots with LEDs with exception of one experiment using six days soak time. However, experimental results were subjected to large uncertainties and, except from one experiment with five days soak time, the estimated increases were nonsignificant. Furthermore, the pot soak time was not found to impact the effect of white LEDs on capture efficiency.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 330-343"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138613219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Suéllen Patrícia Held Azambuja , Kauyse Matos Nascimento , William Renzo Cortez-Vega , Angela Dulce Cavenaghi-Altemio , Jane Mary Lafayette Neves Gelinski , Gustavo Graciano Fonseca
{"title":"Valorization of pulp and viscera from hybrid sorubim and pacu by production of protein concentrate using alkaline solubilization","authors":"Suéllen Patrícia Held Azambuja , Kauyse Matos Nascimento , William Renzo Cortez-Vega , Angela Dulce Cavenaghi-Altemio , Jane Mary Lafayette Neves Gelinski , Gustavo Graciano Fonseca","doi":"10.1016/j.aaf.2023.08.012","DOIUrl":"10.1016/j.aaf.2023.08.012","url":null,"abstract":"<div><div>Fish protein concentration (FPC) by alkaline solubilization has proven to be an alternative method in adding value to muscle-based materials. The aim of this work was to evaluate the influence of different processes (decanting/sieving or centrifugation), reagents (sodium bicarbonate or sodium hydroxide) and washing cycles (1–4) on the quality of protein concentrates obtained from mechanically separated meat (MSM) and viscera of hybrid sorubim (<em>Pseudoplatystoma reticulatum</em> × <em>P. corruscans</em>) and pacu (<em>Piaractus mesopotamicus</em>) fishes. The protein concentrate was obtained by washing the viscera or MSM during up to four cycles (4:1 solution:meat ratio). In each cycle, the liquid waste and fat were removed by decanting/sieving or centrifugation. Moisture, crude protein, crude fat and crude ash contents were determined after each washing cycle. The moisture and protein contents increased immediately after the first washing up to 77.88% (dry basis). The lipid content decreased with the cycles down to 2.99% (dry basis). Higher FPC yield was obtained for MSM during the centrifugation process compared to the decantation/sieving process. Two weight yields above 100% were found in procedures with NaHCO<sub>3</sub> and MSM of hybrid sorubim and pacu, probably due to the larger capacity of gel formation during protein concentration. Differences related to the fish species were more evident than the processes and utilized reagents.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 312-320"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139292527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characteristics and diversity of Vibrio parahaemolyticus causing acute hepatopancreatic necrosis disease in Vietnam","authors":"Tuan-Binh Huynh , Thuy-Dung Mai-Hoang , Tram-Anh Bui-Nguyen , Trinh Thi Phuong Ha , Minh-Duy Phan , Hieu Tran-Van","doi":"10.1016/j.aaf.2023.10.004","DOIUrl":"10.1016/j.aaf.2023.10.004","url":null,"abstract":"<div><div>Acute hepatopancreatic necrosis disease (AHPND) is a contagious disease in shrimp with extremely high mortality rate, causing an estimated $23.6 billion loss to the global shrimp industry during 2009–2016. A binary toxin, PirAB, is the causative agent, which is encoded by the <em>pirAB</em><sup><em>vp</em></sup> genes on a virulent plasmid typically found in <em>Vibrio parahaemolyticus</em>. Here, seventeen strains of <em>V. parahaemolyticus</em> were isolated from the Mekong Delta of Vietnam, of which 15 harboured identical <em>pirAB</em><sup><em>vp</em></sup> genes. The remaining two strains, which were PCR-negative for <em>pirAB</em>, and nine positive strains were selected for whole genome sequencing. Multi-locus sequence typing revealed five sequence types (STs), including one novel, that were associated with sites of isolation. A maximum likelihood tree of core genomes revealed that our strains formed three clusters and were closely related to strains from Thailand, South Korea, China, and Philippines. All sequenced strains carried β-lactam (including <em>bla</em><sub>OXA-10</sub> and <em>bla</em><sub>NDM-1</sub>) and tetracycline resistance genes, with a range of 3–13 resistance genes. The <em>pirAB</em>-positive strains shared large regions of homology with the prototypical AHPND virulent plasmid. In summary, this work revealed the characteristics of AHPND-causing strains in the Mekong Delta of Vietnam and suggested possible transmission routes among Vietnam and other shrimp farming countries.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 202-209"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139294398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Salah M. Aly , Mohamed A. Elatta , Asmaa A. Nasr , Mohamed Fathi
{"title":"Efficacy of garlic and cinnamon as an alternative to chemotherapeutic agents in controlling Saprolegnia infection in Nile tilapia","authors":"Salah M. Aly , Mohamed A. Elatta , Asmaa A. Nasr , Mohamed Fathi","doi":"10.1016/j.aaf.2023.07.010","DOIUrl":"10.1016/j.aaf.2023.07.010","url":null,"abstract":"<div><div>The objective of this study was to minimize the utilization of chemotherapeutic agents in the treatment of fungal infections in fish, as these agents can adversely impact human and animal health as well as the environment. Nile Tilapia was utilized in this study to assess the efficacy of incorporating garlic and cinnamon into their diet, aiming to enhance their immune systems and provide protection against <em>Saprolegnia</em>, a fungal pathogen that causes substantial economic losses in the fish farming industry. The findings indicated that the inclusion of garlic and cinnamon to the fish's diet enhanced their immune response and various blood parameters. Specifically, group 4, treated with 1.5% garlic, demonstrated superior outcomes compared to group 5, which received 2% garlic treatment. Additionally, group 6, subjected to 8.5% cinnamon treatment, exhibited superior hematological parameters when compared to group 7, which received 10% cinnamon treatment. Moreover, group 6 displayed the highest phagocytic activity in comparison to the remaining groups. In conclusion, garlic and cinnamon can serve as valuable immunostimulants for managing fungal infections in fish. Their inclusion in the diet enhances the immune response, consequently bolstering the fish's resistance to fungal infections.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 1","pages":"Pages 105-114"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76172989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vianel Sevastei , Sonia A. Crichigno , M. Victoria Santos , Andrea Trochine , Julio C. Painefilú , Noemí Zaritzky , Víctor E. Cussac
{"title":"The adaptation of rainbow trout to warmer water: Oxidative damage in the germinal line","authors":"Vianel Sevastei , Sonia A. Crichigno , M. Victoria Santos , Andrea Trochine , Julio C. Painefilú , Noemí Zaritzky , Víctor E. Cussac","doi":"10.1016/j.aaf.2023.07.003","DOIUrl":"10.1016/j.aaf.2023.07.003","url":null,"abstract":"<div><div>Contemporary evolution was observed in a feral rainbow trout (<em>Oncorhynchus mykiss</em>) population of a thermal stream (Valcheta) in Northern Patagonia, in terms of juvenile thermal tolerance and preferred temperature. Other authors showed that high-temperature treatment applied to male rainbow trout juveniles increased the thermal tolerance in the next generation. This implies a high mutation rate and/or a modified epigenetic inheritance. Comparisons were made among a) a rainbow trout strain adapted in terms of upper thermal tolerance and higher preferred temperature (Valcheta stream), b) a wild temperate stream population (Guillelmo stream), and c) two temperate farmed strains. We examined: Oxidative damage (lipid peroxidation) and activities of antioxidant enzymes; Catalase (CAT), Glutathione S-Transferases (GST), and Superoxide Dismutase (SOD), in liver, testicle, and spermatozoa. Semen fatty acid composition, sperm morphology, sperm motility, and fertilization performance in samples before and after the application of cryopreservation procedures were also evaluated. The observed responses, mainly related to the sperm membrane, reinforces the idea that ROS can affect the germinal line of male rainbow trout juveniles subjected to high water temperature. Our results suggest that the acquired thermal tolerance traits may be part of a wide spectrum of novel characteristics produced as a consequence of an enhanced mutation rate and/or a different DNA methylation pattern, induced by higher temperatures and mediated by ROS.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 1","pages":"Pages 68-78"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79417357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}