Journal of The World Aquaculture Society最新文献

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IF 3.2 3区 农林科学
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148075067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IF 3.2 3区 农林科学
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148075066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Valorization of corn husk waste: Xylooligosaccharides as a sustainable prebiotic enhance growth, gut health, and fillet quality in Nile tilapia (Oreochromis niloticus) 玉米壳废弃物的价值化:低聚木糖作为可持续益生元促进尼罗罗非鱼生长、肠道健康和鱼片质量
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-04-01 DOI: 10.1111/jwas.70087
Jesca Chikwiramakomo, Claudious Gufe, Tawanda Ashley Chari, Prosper Jambwa, Vimbai R. Hamandishe
{"title":"Valorization of corn husk waste: Xylooligosaccharides as a sustainable prebiotic enhance growth, gut health, and fillet quality in Nile tilapia (Oreochromis niloticus)","authors":"Jesca Chikwiramakomo,&nbsp;Claudious Gufe,&nbsp;Tawanda Ashley Chari,&nbsp;Prosper Jambwa,&nbsp;Vimbai R. Hamandishe","doi":"10.1111/jwas.70087","DOIUrl":"https://doi.org/10.1111/jwas.70087","url":null,"abstract":"<p>Xylooligosaccharides (XOS) are advantageous prebiotics that promote sustainable aquaculture. The growth performance, gut microbiota, and fillet composition of juvenile Nile tilapia (<i>Oreochromis niloticus</i>) were investigated in relation to the prebiotic effects of corn husk-derived XOS, extracted using alkaline extraction and autohydrolysis. Following 2 weeks of acclimatization, 270 fish were split into three groups: control, 0.5% XOS, and 1% XOS, with three replicates per group. For 56 days, fish were fed twice a day. Final weight (83.9 g in 1% XOS vs. 44.5 g in control, <i>p</i> &lt; 0.001, Cohen's <i>d</i> = 2.1) and survival rate (94% in 1% XOS vs. 70% in control, <i>p</i> &lt; 0.001) were both considerably increased by XOS supplementation. The feed conversion ratio dropped significantly from 2.69 (control) to 0.99 (1% XOS, <i>p</i> = 0.003). The nutritional quality of the fillet increased, with calcium levels more than doubling (2.6%–6.7%, <i>p</i> &lt; 0.001) and protein content increasing by 35.6% (14.9% in control to 20.2% in 1% XOS, <i>p</i> &lt; 0.001). A 36-fold increase in lactic acid bacteria (833 CFU/g in 1% XOS vs. 23 CFU/g in the control group, <i>p</i> &lt; 0.05) and a decrease in coliforms were observed in the gut microbiota study, suggesting improved gut health. These results demonstrate that XOS derived from corn husks can serve as a sustainable feed additive improving fillet quality, shaping a favorable gut microbiota, enhancing fish development, and providing a viable substitute for antibiotic growth promoters in aquaculture.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.70087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Probiotic Bacillus subtilis enhances production efficiency in biofloc-raised Cherax quadricarinatus via microbiome remodeling and host antioxidant capacity upregulation 益生菌枯草芽孢杆菌通过微生物群重塑和宿主抗氧化能力的上调来提高生物絮凝饲养的方头凤蝶的生产效率
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-04-01 DOI: 10.1111/jwas.70089
Chengxu Ruan, Junhao Tang, Jiaohong Wang, Ye Tao
{"title":"Probiotic Bacillus subtilis enhances production efficiency in biofloc-raised Cherax quadricarinatus via microbiome remodeling and host antioxidant capacity upregulation","authors":"Chengxu Ruan,&nbsp;Junhao Tang,&nbsp;Jiaohong Wang,&nbsp;Ye Tao","doi":"10.1111/jwas.70089","DOIUrl":"https://doi.org/10.1111/jwas.70089","url":null,"abstract":"<p>Biofloc technology (BFT) presents a sustainable approach to aquaculture intensification by recycling nutrients and reducing water exchange. However, probiotic supplementation for optimization in emerging species such as redclaw crayfish (<i>Cherax quadricarinatus</i>) remains unexplored. This study investigated how <i>Bacillus subtilis</i> (<i>B. subtilis</i>) probiotic supplementation enhances BFT performance in a 70-day redclaw crayfish culture trial. Two treatments—biofloc control (B) and biofloc + <i>B. subtilis</i> (BP)—were evaluated in quintuplicate (<i>n</i> = 5), with systematic monitoring of water quality, biofloc dynamics, crayfish growth, digestive/antioxidant enzymes, and microbiome shifts using 16S rRNA sequencing and PICRUSt2 functional prediction. Probiotic amendment significantly boosted floc aggregation (TSS +40%, BFV +39%) and stabilized carbon-to-nitrogen ratios despite causing a transient elevation in nitrite. Microbial analysis revealed significant pathogen suppression (<i>Vibrio</i> −50%, <i>Aeromonas</i> −61%) alongside enriched nitrifying taxa (<i>Nitrosomonas</i> + 47%) and denitrifying taxa (<i>Thauera</i> + 157%), with increased predicted functional diversity and inferred upregulation of key pathways. Crucially, crayfish in BP exhibited elevated digestive enzymes (α-amylase, pepsin, lipase), antioxidant capacity (SOD, CAT, T-AOC), and immune enzyme activity (AKP). These physiological enhancements, coupled with improved system stability, collectively were associated with a 15.8% increase in production yield, survival (13.9%), and a 12.7% lower feed conversion ratio (FCR). These results demonstrate that <i>B. subtilis</i> effectively optimizes BFT systems by concurrently modulating microbial ecology and host physiology, offering a practical strategy to advance sustainable redclaw crayfish aquaculture.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.70089","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the gut microbiome community, abundance, and functions of Procambarus clarkii under different aquaculture conditions 不同养殖条件下克氏原螯虾肠道微生物群落、丰度及功能的研究
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-03-30 DOI: 10.1111/jwas.70088
Hucheng Jiang, Yu Wang, Nuo Zhang, Yanhua Zhao, Yanming Sui, Hui Xue
{"title":"Investigation of the gut microbiome community, abundance, and functions of Procambarus clarkii under different aquaculture conditions","authors":"Hucheng Jiang,&nbsp;Yu Wang,&nbsp;Nuo Zhang,&nbsp;Yanhua Zhao,&nbsp;Yanming Sui,&nbsp;Hui Xue","doi":"10.1111/jwas.70088","DOIUrl":"https://doi.org/10.1111/jwas.70088","url":null,"abstract":"<p>To examine the gut microbial composition and functional attributes of red swamp crayfish (<i>Procambarus clarkii</i>) across different rearing environments, this experiment employed high-throughput sequencing of the 16S rRNA gene of bacterial DNA isolated from the gut. Using an intensive monoculture system in ponds (NP) as the control, this research analyzed and compared the gut microbial communities of crayfish reared in integrated frameworks, including lotus and crayfish co-culture (XH), rice and crayfish co-culture (YZ), as well as polyculture systems involving crayfish and crabs (NG). The findings indicated that when examining phylum-level taxonomy, the bacterial community structures in the gut remained relatively similar across the various cultivation modes; the most abundant phyla identified were Bacteroidetes, Proteobacteria, and Firmicutes. In terms of genus-level classification, <i>Bacteroides</i> and <i>Citrobacter</i> were identified as the dominant taxa. Correspondingly, when analyzed at the species level, <i>Bacteroides neonati</i> and <i>Citrobacter freundii</i> emerged as the most prevalent species. Significant differences in microbial diversity were observed among the farming systems. Compared with the intensive monoculture group, the lotus-crayfish and rice-crayfish systems showed higher gut microbial diversity, whereas the crayfish-crab polyculture system exhibited lower diversity. Predictive functional analysis indicated that the dominant metabolic functions across all four systems were chemoheterotrophy, fermentation, and aerobic chemoheterotrophy. The genus-level interaction network showed that the microbial network in the NG group had a relatively simple structure, while those in the XH and YZ groups displayed a more complex microbial structure. In summary, the gut microbial community of red swamp crayfish features a core profile primarily composed of Bacteroidetes, Proteobacteria, and Firmicutes, while its taxonomic diversity exhibits considerable variation across different rearing systems. These results deepen the comprehension of microbial ecology within the digestive tract of this species and offer important implications for the improvement of sustainable aquaculture strategies.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.70088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal dietary protein level for juvenile Hefang crucian carp (Carassius auratus): Balancing growth performance and hepatic health 河方鲫幼鱼饲料最佳蛋白质水平:平衡生长性能和肝脏健康
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-03-25 DOI: 10.1111/jwas.70081
Jie Zhang, Dongyi Zhang, Yin Huang, Yangbo Xiao, Shiyu Tu, Shengfeng Huang, Fufa Qu, Zhen Liu, Shaochun Liu, Jianzhou Tang, Changjun Liu, Shenping Cao
{"title":"Optimal dietary protein level for juvenile Hefang crucian carp (Carassius auratus): Balancing growth performance and hepatic health","authors":"Jie Zhang,&nbsp;Dongyi Zhang,&nbsp;Yin Huang,&nbsp;Yangbo Xiao,&nbsp;Shiyu Tu,&nbsp;Shengfeng Huang,&nbsp;Fufa Qu,&nbsp;Zhen Liu,&nbsp;Shaochun Liu,&nbsp;Jianzhou Tang,&nbsp;Changjun Liu,&nbsp;Shenping Cao","doi":"10.1111/jwas.70081","DOIUrl":"https://doi.org/10.1111/jwas.70081","url":null,"abstract":"<p>A 54-day feeding trial was conducted to investigate the effects of dietary protein levels on growth performance, digestive capacity, plasma biochemical indexes, and gene expression in Hefang crucian carp (<i>Carassius auratus</i>). Six experimental diets were prepared with protein levels of 21.7%, 24.0%, 29.4%, 34.0%, 38.0%, and 43.2%, respectively. Each diet treatment was randomly assigned to triplicate groups of 25 fish, with an initial body weight of (14.60 ± 0.39) g per tank. Fish were fed twice daily to apparent satiation. The results showed that weight gain rate (WGR) and specific growth rate (SGR) exhibited an upward trend with increasing dietary protein levels, and reached the highest value in the 43.2% protein group. Conversely, protein efficiency was significantly higher in the 24.0% protein group compared to the other protein groups (<i>p</i> &lt; 0.05). As dietary protein levels increased, there was a significant rise in the condition factor (CF), while both the hepatopancreas somatic index (HSI), viscerosomatic index (VSI) and crude lipid of whole body experienced significant decreases (<i>p</i> &lt; 0.05). The intestinal trypsin activity was significantly elevated in the high-protein groups (38.0% and 43.2% protein) compared to the low-protein group (21.7% protein), whereas the plasma triglyceride concentrations exhibited a significant inverse relationship (<i>p</i> &lt; 0.05). However, at a dietary protein level of 43.2%, the lipid droplet content in the liver of Hefang crucian carp was significantly elevated compared to other experimental groups. Additionally, the group fed the diet with a protein level of 21.7% exhibited significantly higher lipid droplet content than the groups with protein levels of 24.0% and 34.0%. A curvilinear regression analysis indicated that the lipid droplet area in the liver was minimized at a dietary protein concentration of 29.9%. Regarding intestinal gene expression, the <i>asct2</i> and <i>lat2</i> genes exhibited the highest expression levels in the group supplemented with 43.2% protein. Conversely, the expression levels of <i>pept1</i> and <i>cdx2</i> genes initially decreased and subsequently increased as the dietary protein levels rose, achieving their peak in the low-protein groups (21.7% and 24.0% protein) (<i>p</i> &lt; 0.05). Concerning hepatopancreas genes, the expression levels of <i>tor</i>, <i>igf1</i>, and <i>gh</i> genes were significantly elevated in the 24.0% protein group compared to other treatment groups. Additionally, the expression levels of <i>ghr</i> were significantly higher in the 21.7% and 43.2% protein groups compared to the other treatment groups (<i>p</i> &lt; 0.05). In conclusion, Hefang crucian carp exhibited optimal growth performance at a dietary protein level of 43.2%, whereas a protein concentration of 29.9% was identified as the critical threshold for maintaining optimal liver health.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.70081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of NLRP3 isoforms in bullfrog Aquarana catesbeiana and their role in antibacterial immunity 牛蛙体内NLRP3亚型的特征及其在抗菌免疫中的作用
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-03-16 DOI: 10.1111/jwas.70085
Peikui Yang, Jiayi Chen, Yixian Lin, Boxi Zeng, Tongying Chen, Jude Juventus Aweya, Xianghui Zou, Yuzhong Zheng, Ruixuan Wang
{"title":"Characterization of NLRP3 isoforms in bullfrog Aquarana catesbeiana and their role in antibacterial immunity","authors":"Peikui Yang,&nbsp;Jiayi Chen,&nbsp;Yixian Lin,&nbsp;Boxi Zeng,&nbsp;Tongying Chen,&nbsp;Jude Juventus Aweya,&nbsp;Xianghui Zou,&nbsp;Yuzhong Zheng,&nbsp;Ruixuan Wang","doi":"10.1111/jwas.70085","DOIUrl":"https://doi.org/10.1111/jwas.70085","url":null,"abstract":"<p>The NLRP3 inflammasome is essential for innate immunity against pathogens, yet its function in amphibians remains poorly understood. Here, we identified and cloned two novel isoforms of NLRP3 from the American bullfrog (<i>Aquarana catesbeiana</i>), designated <i>Ac</i>NLRP3 X1 and <i>Ac</i>NLRP3 X2, with open reading frames of 2397 bp (798 aa) and 2874 bp (957 aa), respectively. Both isoforms contain conserved NACHT and LRR domains, lack a typical PYD domain, and share high structural similarity to other amphibians' NLRP3 homologs. Tissue distribution analysis revealed that both isoforms are broadly expressed in immune-related organs and are significantly upregulated upon infection with <i>Citrobacter freundii</i>, <i>Elizabethkingia miricola</i>, <i>Aeromonas hydrophila</i>, and <i>Edwardsiella tarda</i>. In vivo knockdown of either isoform significantly reduced the transcript levels of downstream inflammasome-related genes, including <i>Ac</i>ASC, <i>Ac</i>Caspase1, <i>Ac</i>IL-1β, and <i>Ac</i>IL-18. Collectively, these findings demonstrate that both <i>Ac</i>NLRP3 isoforms contribute to antibacterial immunity by regulating inflammasome signaling, providing insight into amphibian innate immunity and expanding understanding of NLRP3 function across vertebrates.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.70085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temperature and nutrient responses of three red algae: Implications for species rotation in land-based aquaculture 三种红藻的温度和养分响应:对陆基水产养殖物种轮作的影响
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-03-10 DOI: 10.1111/jwas.70083
SookKyung Shin, Young-Seok Han, Charles Yarish, Jang K. Kim
{"title":"Temperature and nutrient responses of three red algae: Implications for species rotation in land-based aquaculture","authors":"SookKyung Shin,&nbsp;Young-Seok Han,&nbsp;Charles Yarish,&nbsp;Jang K. Kim","doi":"10.1111/jwas.70083","DOIUrl":"https://doi.org/10.1111/jwas.70083","url":null,"abstract":"<p>Land-based Integrated Multi-Trophic Aquaculture (IMTA) offers a sustainable production model, but its economic viability is often limited by seasonal fluctuations in temperature and nutrient loads, which hinder consistent year-round biomass production. To address this bottleneck, we evaluated the potential for a seasonal species rotation strategy by comparing the physiological performance of three economically important red seaweeds. <i>Pyropia yezoensis</i>, <i>Chondrus ocellatus</i>, and <i>Gracilaria vermiculophylla</i> were cultivated under a factorial matrix of three temperatures (10°C, 15°C, and 20°C) and two nutrient concentrations (HN: 500 μM of nitrogen and 30 μM of phosphorus; LN: 50 μM of nitrogen and 3 μM of phosphorus). Results showed distinct thermal niches: <i>Py. yezoensis</i> performed optimally in colder conditions (10°C–15°C), exhibiting severe stress at 20°C. In contrast, <i>G. vermiculophylla</i> was highly tolerant to warmer temperatures, maintaining high growth and nutrient assimilation at 20°C. <i>C. ocellatus</i> demonstrated an intermediate preference, with peak performance at 15°C but showing signs of bleaching at 20°C. These findings provide the scientific basis for a dynamic operational framework: cultivating <i>Py. yezoensis</i> in winter (≤15°C), transitioning to <i>C. ocellatus</i> in spring/autumn (15°C–20°C), and employing the robust <i>G. vermiculophylla</i> in summer (≥20°C). This proposed rotation strategy offers a practical pathway to enhance the stability, productivity, and environmental sustainability of land-based IMTA systems.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.70083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using computer vision to assess changes in ventilation rates of farmed Atlantic salmon (Salmo salar) following a freshwater bath 使用计算机视觉评估养殖大西洋鲑鱼(Salmo salar)在淡水浴后通风率的变化
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-03-09 DOI: 10.1111/jwas.70084
Quynh Le Khanh Vo, Kylie A. Pitt, Bela Stantic, Colin Johnston, Blair Kennedy, Lukas Folkman
{"title":"Using computer vision to assess changes in ventilation rates of farmed Atlantic salmon (Salmo salar) following a freshwater bath","authors":"Quynh Le Khanh Vo,&nbsp;Kylie A. Pitt,&nbsp;Bela Stantic,&nbsp;Colin Johnston,&nbsp;Blair Kennedy,&nbsp;Lukas Folkman","doi":"10.1111/jwas.70084","DOIUrl":"https://doi.org/10.1111/jwas.70084","url":null,"abstract":"<p>Computer vision is becoming a valuable tool for non-invasive, continuous monitoring of farmed fish health and welfare, reducing the reliance on manual inspections. Field validation is needed to interpret computer vision outputs and assess their use in aquaculture. Freshwater baths, routinely applied to manage amoebic gill disease (AGD) in farmed Atlantic salmon (<i>Salmo salar</i>), improve gill health by reducing gill mucus. In this study, we aimed to determine whether a computer vision method could detect treatment-related changes in ventilation after freshwater treatment. The method detected fish heads and classified mouth states (open or closed) using a convolutional neural network, followed by a tracking-by-detection approach to calculate mouth movement durations and estimate ventilation rates. Ventilation rates were calculated from 47 pairs of videos filmed before and after fish were bathed in freshwater at commercial farms in Tasmania, Australia. Additional data on water temperature and dissolved oxygen levels were recorded at the pens. A multiple linear mixed-effects model was used to analyze associations between these variables. On average, median ventilation rates decreased by 2.56 open-closed mouth cycles per minute after the baths. Our results contribute to understanding how computer vision could support the assessment of fish responses to freshwater treatment, which is commonly used to manage gill health issues such as AGD.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"57 2","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.70084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative analysis of morphology, growth performance and gonadal development between the hybrid crab (Scylla serrata ♀ × S. paramamosian ♂) and S. serrata 杂交蟹Scylla serrata♀× S的形态、生长性能和性腺发育的比较分析。paramamosia♂)和s.s serrata
IF 3.2 3区 农林科学
Journal of The World Aquaculture Society Pub Date : 2026-03-08 DOI: 10.1111/jwas.70079
Huanyu Zhang, Bihui Chao, Wenxiao Cui, Shaopan Ye, Shihao Shi, Peixun Chen, Mhd Ikhwanuddin, Hongyu Ma
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