Aquaculture, Fish and Fisheries最新文献

{"title":"Stock Status of Ompok bimaculatus in Kaptai Lake: A Length-Based Approach for Sustainable Fisheries Management","authors":"Nirjhar Nakib,&nbsp;Mohammed Shahidul Alam,&nbsp;Md Rakibul Islam,&nbsp;Ataher Ali,&nbsp;Md. Shah Paran","doi":"10.1002/aff2.70340","DOIUrl":"https://doi.org/10.1002/aff2.70340","url":null,"abstract":"<p><i>Ompok bimaculatus</i>, a silurid catfish, is a commercially valuable and endangered species in Bangladesh. Kaptai Lake is a critical habitat for this species, yet growing market demand and ecological pressures jeopardize stock sustainability. Therefore, this study employed a length-based approach integrating LB-SPR and aLBI to conduct the baseline stock assessment of the species in the lake. The LB-SPR suggests that the stock may be experiencing overfishing with a reduced spawning potential ratio (<i>SPR</i> = 0.30) and unsustainable fishing pressure (<i>F</i>/<i>M</i> = 1.32). Furthermore, the length at 50% selectivity (<i>SL</i>₅₀ = 19.67 cm) fell below the length at 50% maturity (<i>L</i>₅₀ = 21.02 cm), indicating potential growth overfishing. The aLBI model estimated the key length parameters: asymptotic length (<i>L</i>_∞ = 36.32 cm), length at maturity (<i>L</i>_mat = 21.04 cm) and optimum length (<i>L</i>_opt = 21.72 cm). The percentage of mature fish (<i>P</i>_mat = 65.03%) and the percentage of optimally sized fish (<i>P</i>_opt = 42.49%) fell short of the target of 100%. The percentage of mega-spawners (<i>P</i>_mega = 31.78%) exceeding 20% suggests potential recruitment overfishing. In addition, the probability of stock biomass being below the target (TSB40) and limit reference points (LSB25) was 100%, remaining completely stable across ±5% and ±10% parameter variations (<i>L</i>_∞ and <i>L</i>_mat) before exhibiting dynamic shifts at ±15%. Based on these findings, this study recommends implementing a length range between <i>L</i>_opt and <i>L</i>_opt + 10% of <i>L</i>_opt to protect juveniles and mega-spawners. Finally, addressing the underlying drivers of overfishing to reduce <i>F</i>/<i>M</i> is essential.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70340","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146889","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":"Adaptive Capacity and Recovery of Small-Scale Fishers Following Cyclone Impacts: Evidence From Lake Chilwa, Malawi","authors":"Dalani Matemba,&nbsp;Robertson Khataza,&nbsp;Moses Majid Limuwa","doi":"10.1002/aff2.70339","DOIUrl":"https://doi.org/10.1002/aff2.70339","url":null,"abstract":"<p>Climate-induced extreme events increasingly threaten small-scale fisheries and fishing-dependent communities, yet evidence on post-cyclone recovery and adaptive capacity in inland lake systems remains limited. This study examined perceived changes in fish catches, fishing practices, adaptive capacity, recovery patterns and community resilience following Cyclone Freddy in the Lake Chilwa Basin, Malawi. A mixed-methods approach was employed in April 2025, involving 350 respondents across seven fishing communities, including 149 fishers, complemented by seven focus group discussions and 28 key informant interviews. Quantitative data were analysed using descriptive and inferential statistics, ordered logistic regression and a Community Resilience Index (CRI) based on natural, human, financial, social and physical capital. Fishers reported lower catch categories following the cyclone, attributed to habitat destruction and deteriorating water quality. Fishing-trip frequency also changed significantly between pre- and post-cyclone periods. More than half (54.4%) resumed fishing within 3 months, with a mean resumption time of 4.15 months. Ordered logistic regression identified infrastructure quality as the only statistically significant individual-level predictor of higher adaptive capacity (OR = 3.51, <i>p</i> = 0.009). Equipment condition, full recovery status, financial access, income change, confidence in recovery, age, household size and recovery time were not statistically significant. Significant spatial differences were observed, with fishers in Kachulu, Namakwaila and Nkuba having lower odds of reporting higher adaptive capacity than those in Gudumuka. The CRI showed that natural capital was generally the strongest livelihood-capital dimension, whereas physical capital was comparatively weak across communities. The findings demonstrate that resuming fishing does not necessarily constitute full livelihood recovery or resilience. Strengthening resilience therefore requires investment in flood-resilient fisheries infrastructure, market and transport connectivity, financial and social-support mechanisms, climate early-warning systems and habitat protection. Recovery interventions should be place-specific and extend beyond restoring fishing activity to rebuilding broader livelihood systems.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70339","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146888","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":"Gut Bacterial Diversity of the Migratory Hilsa Shad Tenualosa ilisha (Hamilton, 1822) From Different Habitats in Bangladesh","authors":"Niger Sultana Bably,&nbsp;Anwar Hossain,&nbsp;Md. Hasan Faruque,&nbsp;Md. Al Zahid,&nbsp;Md. Inja-Mamun Haque,&nbsp;Kozo Watanabe,&nbsp;Shankar Chandra Mandal","doi":"10.1002/aff2.70328","DOIUrl":"https://doi.org/10.1002/aff2.70328","url":null,"abstract":"<p>The present study was conducted to determine the distinct gut bacteriome diversity and composition in Hilsa Shad (<i>Tenualosa ilisha)</i>, a biologically, nutritionally and economically significant species, across different habitats using next-generation sequencing. Through amplicon sequencing of the 16S rRNA gene (V3–V4 regions), diverse bacterial taxa and their distribution within the gut microbiota of hilsa from three habitats, including freshwater, brackish water, and marine water in Bangladesh, were identified. The study identified 1809 operational taxonomic units across 42 bacterial phyla, 89 classes, 203 orders, 312 families and 570 genera. Hilsa gut microbiota showed significant habitat-specific variation, with marine samples exhibiting higher Shannon diversity and greater Chao1 and ACE richness than freshwater and brackish samples. Simpson diversity did not differ significantly among habitats, indicating that habitat primarily influenced microbial richness rather than overall evenness. Freshwater hilsa gut microbiota was dominated by the genera <i>Aeromonas</i>, <i>Lactococcus</i>, <i>Photobacterium</i>, <i>Clostridium</i>, <i>Burkholderia</i>, <i>Bacillus</i>, <i>Chryseobacterium and Cetobacterium</i>. In contrast, marine and brackish water hilsa guts were dominated by <i>Acinetobacter, Psychrobacter</i>, <i>Bacillus</i>, <i>Lactococcus</i>, <i>Photobacterium</i>, <i>Exiguobacterium and Pseudomonas</i>, with <i>Vibrio</i> relatively abundant in the brackish water population. Notably, potential beneficial bacteria were more abundant than potential pathogenic bacteria in all sample types (<i>p</i> &lt; 0.05). PICRUSt2-based functional prediction indicated habitat-associated variation in microbial metabolic potential, with differences in predicted pathways related to carbohydrate metabolism, amino acid and nucleotide biosynthesis, vitamin and cofactor metabolism, sulphur metabolism and bacterial cell wall biosynthesis. Species co-occurrence network analysis further revealed predominantly positive microbial associations and identified several highly connected taxa, suggesting cooperative microbial interactions that may contribute to community stability. Collectively, these findings suggest that habitat-associated differences in the gut microbiota may influence nutrient metabolism and support host adaptation during migration, while providing a valuable foundation for future studies investigating host–microbiome interactions and the ecological functions of the hilsa gut microbiome.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70328","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048122","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":"Biosecurity Measures and Practices Relevant to Infectious Disease Management at Fish Farms in Northern Nigeria","authors":"Jibril Y. Jibril,&nbsp;Kerry L. Bartie,&nbsp;Johanna Baily,&nbsp;Andrew P. Desbois","doi":"10.1002/aff2.70331","DOIUrl":"https://doi.org/10.1002/aff2.70331","url":null,"abstract":"<p>Aquaculture helps to bridge Nigeria's fish supply deficit and thus contributes to national food security. Southwest Nigeria dominates national aquaculture output, but fish farming in northern Nigeria is expanding. Understanding the infectious disease situation in this burgeoning segment of the sector, including how farmers act to prevent and manage suspected outbreaks, is important to inform implementation of effective practices. This study aimed to describe practices at farms in northern Nigeria, with a focus on those relevant to infectious disease prevention and control. A structured questionnaire was administered via 1-h telephone interviews with 45 farmers between September 2021 and February 2022. All participants farmed African catfish (<i>Clarias</i> spp. and <i>Heterobranchus</i> spp.) and most farms (41/45) produced ≤ 10 tonnes/cycle. Suspected infectious disease cases had occurred at 29/45 farms in the past 2 years and were reported to have caused mortalities in most cases (23/29). Self-medication with antimicrobials was common, with tetracyclines the most frequently applied agents. Products containing neomycin, streptomycin, furaltadone, chloramphenicol, enrofloxacin, erythromycin, colistin, amoxicillin and gentamicin were also used, and 22/45 participants applied antibiotics for disease prevention purposes. There was variation in biosecurity practices at the farms, with between two and 12 positive practices implemented, such as quarantining of new stocks (10/45 participants). Infectious diseases are a threat to aquaculture production in northern Nigeria, but information concerning outbreaks and the practices in place to prevent and manage suspected cases is scarce. This study is the first to collect data on farm biosecurity and disease management practices across a large area of northern Nigeria, which provides potential opportunities towards enhancement once the infectious diseases have been characterised, and this may ultimately support sector growth.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70331","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048097","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":"Market Systems Integration in Zambia's Aquaculture Sector: A Scoping Review of Value Chains, Supply Chains and Sustainability Challenges","authors":"Enock Siankwilimba,&nbsp;Sahya Maulu,&nbsp;Joseph Mphande,&nbsp;Msumenji Phiri,&nbsp;Elvas G. Shaba,&nbsp;Ipaalo Ndhlovu,&nbsp;Sillah Siavwapa,&nbsp;Henry Bwalya,&nbsp;Given Mbewe,&nbsp;Mweemba Shimbetu,&nbsp;Kingdom Simfukwe,&nbsp;Oliver J. Hasimuna","doi":"10.1002/aff2.70336","DOIUrl":"https://doi.org/10.1002/aff2.70336","url":null,"abstract":"<p>Aquaculture is increasingly important to food security, nutrition, livelihoods and economic development in Zambia, yet sectoral growth depends on more than production capacity. This scoping review synthesised evidence on Zambia's aquaculture market systems, focusing on value chains, supply chains and persistent evidence gaps. Web of Science, Scopus and Google Scholar were searched alongside relevant grey literature for records published between 2000 and 2026. Of 652 records retrieved, 563 remained after removal of duplicates and clearly ineligible records, 152 full texts were assessed, and 107 sources were charted through the formal review process; 14 supplementary sources identified during manuscript revision were subsequently incorporated, giving 121 sources in the final synthesis. Evidence was synthesised across six value-chain stages and four sustainability dimensions. The sector is increasingly dualistic, with rapid production growth alongside persistent structural constraints. Reported production increased from 21,567 t in 2017 to 52,922 t in 2022, whereas the share attributed to establishments captured in Zambia Statistics Agency surveys increased from 74% to 79%; Southern Province accounted for 73% of production in 2022. Administrative and survey estimates for the same year differed by 43%. Feed costs and weak cold-chain infrastructure recurred across the value chain, alongside reported post-harvest losses of 20%–30% and formal credit access of 12%–16%. Evidence on smallholder aquaculture was mixed: Some studies characterised it as unsustainable as a primary livelihood activity, whereas farm-level analyses indicated that individual ponds could be financially viable, suggesting constraints beyond production itself. Major evidence gaps remain in cold-chain and aggregation economics, gender-disaggregated analysis, environmental performance, policy evaluation and household production dynamics. Future development requires stronger market-system integration alongside production growth and targeted empirical and policy research.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70336","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149047895","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":"Geometric Morphometric Analysis of Phenotypic Population Structure in Hatchery and Wild Stocks of Ompok pabda From Bangladesh","authors":"Krishna Roy,&nbsp;Dewan Noor-E-Chashmi Ara,&nbsp;Priangka Roy,&nbsp;Afra Anjum Preety,&nbsp;Ashikur Rahman Leon,&nbsp;Imran Parvez","doi":"10.1002/aff2.70334","DOIUrl":"https://doi.org/10.1002/aff2.70334","url":null,"abstract":"<p>Population structure is important for broodstock management and conservation of <i>Ompok pabda</i>. This study evaluated phenotypic shape variation among three hatchery populations from Bogura (Kahalu), Dinajpur (Sadar) and Mymensingh (Muktagacha) and one wild population from Arial <i>Beel</i>, Munshiganj, using 15 landmark geometric morphometrics. After data-quality screening and generalised Procrustes analysis, a small but significant common within-group allometric effect explained 2.28% of shape variation (permutation <i>p</i> = 0.0413) and was removed before multivariate analysis. Principal component analysis of allometry-adjusted Procrustes coordinates showed that PC1 and PC2 explained 48.08% and 18.19% of the variation, respectively (66.27% cumulative). MANOVA detected a strong population effect on shape (Wilks' <i>λ</i> = 0.0393, <i>F</i> (33, 257.02) = 15.57, <i>p</i> &lt; 0.001). Canonical variate analysis showed that CV1 and CV2 accounted for 65.19% and 22.18% of the canonical discriminatory variation, respectively. Discriminant function analysis using 11 PCs that retained 95.27% of allometry-adjusted Procrustes shape variance achieved 87.13% overall leave-one-out cross-validated classification accuracy with equal prior probabilities. All pairwise Mahalanobis and Procrustes distances were significant, while UPGMA based on complete mean-shape Procrustes distances grouped Bogura most closely with Arial <i>Beel</i> and identified Mymensingh as the most distant population. Thin-plate spline visualisations localised major variation around the head and ventral pelvic-anal region. The results demonstrate significant phenotypic structuring, but the unbalanced wild sample and absence of molecular data require caution when inferring genetic stock boundaries.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70334","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048002","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":"Assessment of Human Exposure Risk From Microplastic Contamination in Commercially Important Fish Species Sold in Local Markets of Mawlamyine, Myanmar","authors":"Thet Htwe Aung,&nbsp;Soe Thaw Thaw Tun,&nbsp;Aung Aye Latt,&nbsp;Nyo Nyo Tun","doi":"10.1002/aff2.70335","DOIUrl":"https://doi.org/10.1002/aff2.70335","url":null,"abstract":"<p>Microplastic (MP) contamination was investigated in the gastrointestinal tract (GIT) and gills of 238 fish representing eight commercially important species collected from retail markets in Mawlamyine, Myanmar. MPs were detected in the GIT and/or gills of all examined fish, corresponding to a prevalence of 100%. Mean total abundance ranged from 5.44 ± 1.23 particles fish⁻¹ in <i>Rastrelliger</i> sp. to 18.91 ± 2.74 particles fish⁻¹ in <i>Tenualosa ilisha</i>, while mass-normalized concentration ranged from 0.0464 to 0.2977 particles g⁻¹. Paired gut–gill comparisons were evaluated using a Shapiro–Wilk-dependent approach: Wilcoxon signed-rank tests were applied to six species with non-normal paired differences, and paired-samples <i>t</i>-tests were applied to <i>Polynemus paradiseus</i> and <i>T. ilisha</i>, whose paired differences were compatible with normality. All eight tissue comparisons were significant at <i>p</i> &lt; 0.001. Gut abundance exceeded gill abundance in six species, whereas <i>Rastrelliger</i> sp. and <i>T. ilisha</i> exhibited gill-dominant burdens. Fibres were the dominant morphotype in six species, while paint-like particles were prominent in <i>Rastrelliger</i> sp. and <i>T. ilisha</i>. Particles measuring 20–50 µm represented a substantial proportion of the recovered particles. ATR–FTIR analysis assigned 238 of 270 analysed particles (88.1%) to polyethylene terephthalate, polyethylene, polypropylene, polystyrene or polyamide/nylon. Under a hypothetical sole-species consumption scenario based on a fish intake rate of 123 g person⁻¹ day⁻¹, estimated daily intake ranged from 5.71 to 36.62 particles person⁻¹ day⁻¹, and body-weight-normalized intake ranged from 0.0990 to 0.6347 particles kg⁻¹ day⁻¹. The Exposure Risk Index ranged from 1.00 to 6.41 and was used only as a relative within-study ranking; it is not a validated toxicological, regulatory or human-health threshold.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70335","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048004","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":"Responsible AI Guardrails in Aquaculture, Fish and Fisheries: Enabling Innovation With Accountability and Integrity","authors":"Ricardo Calado,&nbsp;Joy A. Becker,&nbsp;Christyn Bailey","doi":"10.1002/aff2.70332","DOIUrl":"https://doi.org/10.1002/aff2.70332","url":null,"abstract":"&lt;p&gt;The advent of artificial intelligence (AI), particularly large language models (LLMs), has fundamentally changed scientific publishing. The change was ‘fast and furious’. Scientific publishers and editorial teams continue to adapt to an evolving landscape shaped by increasingly advanced AI tools. While the exact nature of this new paradigm remains unclear, one thing is certain: scientific publishing has changed and will, most likely, continue to change at an unprecedented pace over the next few years.&lt;/p&gt;&lt;p&gt;AI tools now provide valuable help to researchers, especially those who do not have English as their first language. From spell checks to grammar corrections, or even the full rephrasing of entire paragraphs to enhance the clarity of manuscripts and meet the language standards of scientific journals, AI tools now allow researchers to focus more on the science rather than on how to clearly communicate their new findings in a foreign language (after all, English is important, but science is &lt;i&gt;importanter&lt;/i&gt;…). These tools also allow researchers to assemble initial drafts of their work, helping to overcome both the procrastination associated with starting a new manuscript and the self-doubt often linked to imposter syndrome. They can also be used to screen large datasets more rapidly, search for patterns, trends and other indicators to interpret complex data. In aquaculture and fisheries-related research, AI-assisted tools may support tasks such as analysing large genomic, environmental and monitoring datasets, identifying patterns in production, health or welfare data, improving image-based monitoring, modelling ecological change, supporting fisheries management and conservation decisions and communicating complex findings to a wide range of stakeholders (Devi et al. &lt;span&gt;2026&lt;/span&gt;; Haque and Al Jufaili &lt;span&gt;2026&lt;/span&gt;). We also anticipate that AI-assisted tools can help make aquaculture and fisheries research more inclusive by reducing language barriers, improving accessibility and supporting interdisciplinary collaboration.&lt;/p&gt;&lt;p&gt;AI-assisted tools can more rapidly and effectively trim sections of a manuscript that have a limited number of words/characters (e.g., titles, abstracts…) without affecting its relevance and impact, as well as refining the writing to better suit the scope of the target journal or a particular readership. When working on manuscripts in an emerging field, AI tools can help authors to identify topics that may have been overlooked and structure complex ideas in ways that are easier to follow. With the assistance of AI, researchers with limited programming experience can more easily develop code to perform tedious, time-consuming tasks in seconds. AI tools also make it possible to turn complex scientific publications into graphical abstracts, infographics, podcasts and so many other creative ways to communicate science to decision-makers, the public and even scientific peers.&lt;/p&gt;&lt;p&gt;However, with great power comes","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70332","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048001","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":"Towards Season-Specific Feeds: Maximising Protein Digestibility and Reducing Waste in Hybrid Abalone (Haliotis rubra × Haliotis laevigata) Aquaculture","authors":"Abdul Lathiff Inamul Hassan,&nbsp;Thomas S. Mock,&nbsp;Kieren Searle,&nbsp;Melissa M. Rocker,&nbsp;Giovanni M. Turchini,&nbsp;David S. Francis","doi":"10.1002/aff2.70321","DOIUrl":"https://doi.org/10.1002/aff2.70321","url":null,"abstract":"<p>Australian abalone grow-out aquaculture relies on formulated feeds to provide for the nutritional requirements of the animal. At the same time, grow-out systems are subject to seasonal water temperature fluctuations. As such, the economic and environmental performance of cultured abalone is inherently tied to the utilisation efficiency of dietary nutrients and changes to water temperature. This study aimed to better understand the effect of water temperature and dietary protein level on nutrient digestibility in Australian hybrid abalone (<i>Haliotis rubra</i> × <i>Haliotis laevigata</i>). Hybrid abalone were fed five different levels of dietary protein for 150 days at three distinct water temperatures. Digestibility, nutrient utilisation and calculations of nitrogen assimilation efficiency and undigested nitrogenous waste were assessed. Protein digestibility was negatively affected during both warm (22°C) and cold (12°C) water growing conditions and appeared optimal at 17°C, whereas lipid digestibility increased as the water temperature increased from 12°C to 22°C. An increase in the dietary protein level up to 440 g kg⁻¹ at both 17°C and 22°C improved macronutrient and amino acid digestibility, compared to diets formulated with lower dietary protein. Relationships between water temperature and diet protein level were plotted on response surfaces and showed that maximum protein digestibility occurs at 16.8°C and 46.3% diet protein, whereas maximum dry matter digestibility occurs at 18.9°C and 43.1% diet protein. Taken together, these findings can significantly contribute towards developing season-specific feeds for Australian hybrid abalone to maximise growth performance while minimising effluent discharge.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70321","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048003","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":"Suitable Substrates for Black Soldier Fly Larvae Production: A Pathway Towards Sustainable Aquafeed Production","authors":"Mekonnen Melesse,&nbsp;Abebe Getahun,&nbsp;Akewake Geremew","doi":"10.1002/aff2.70324","DOIUrl":"https://doi.org/10.1002/aff2.70324","url":null,"abstract":"<p>Due to the rapid growth in aquaculture, there is an urgent need to explore alternative sustainable sources for fish feed other than conventional fishmeal. Black soldier fly larvae (BSFL) have been identified as a potential source of protein that could transform waste materials into high-value biomass. This review critically synthesizes current knowledge on substrate selection for BSFL production and evaluates its implications for sustainable aquafeed development. It investigates the nutritional needs of BSFL, substrate types such as agricultural, food processing, and municipal wastes, and pretreatments like thermal, biological, chemical, and enzymatic. The paper explores the best practices for selecting substrates for BSFL production and the economic and environmental impacts of different substrates. There is sufficient evidence that plant-based substrates, especially combinations of multiple substrates, result in higher quality BSFL biomass characterized by better functional properties. These include increased antioxidant capacity and cell proliferation activities. Overall, optimizing substrate selection and pretreatment strategies can enhance BSFL biomass quality, improve waste valorization, and support the development of sustainable aquafeed systems.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"6 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70324","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943420","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}