Aquaculture and Fisheries最新文献

{"title":"Effects of extract of Ginkgo biloba leaves on pellet quality, hypoxia tolerance and infection of Jian carp (Cyprinus carpio var. Jian) with Aeromonas hydrophila","authors":"Gangfu Chen ,&nbsp;Jing Xu ,&nbsp;Qi Yang ,&nbsp;Boyun Jian ,&nbsp;Xiaolu Yu ,&nbsp;Jie Li ,&nbsp;Huilan Zhang ,&nbsp;Ting Zhang ,&nbsp;Jianying Pu ,&nbsp;Limei Luo ,&nbsp;Yuxue Ye ,&nbsp;Ling Liao ,&nbsp;Linhui He ,&nbsp;Xin Wei ,&nbsp;Qihui Yang ,&nbsp;Jun Jiang ,&nbsp;Huatao Li","doi":"10.1016/j.aaf.2025.09.005","DOIUrl":"10.1016/j.aaf.2025.09.005","url":null,"abstract":"<div><div>The effects of extracts of <em>Ginkgo biloba</em> leaves (EGb) on feed quality, hypoxia tolerance, and disease resistance were examined in this study. EGb were prepared by using four different solvents: aqueous, ethanol, ethyl acetate, and petroleum ether. Subsequently, five distinct fish diets were formulated, including one basal diet and four EGb-supplemented diets (1 % EGb addition respectively). A total of 450 juvenile Jian carp weighing 10.55 ± 0.22 g were randomly assigned and fed these diets for 15 d. The results showed that EGb supplementation decreased the leaching loss ratio and inhibited mold growth and lipid peroxidation in pelleted fish feeds (<em>P &lt;</em> 0.05). The activities of trypsin, chymotrypsin, amylase, superoxide dismutase, lipase, glutathione-S-transferase, and anti-hydroxy radical in fish digestive organs were all improved, while H₂O₂ levels were decreased by dietary EGb supplementation (<em>P &lt;</em> 0.05). Under hypoxic conditions, dietary EGb supplementation lowered the rate of oxygen consumption while increasing the duration for fish (<em>P &lt;</em> 0.05). Furthermore, dietary EGb supplementation decreased the mortality of Jian carp after challenge with <em>Aeromonas hydrophilia</em> and increased plasma lysozyme activity (<em>P &lt;</em> 0.05). Overall, our results suggest that EGb supplementation improves feed quality and inhibits mold growth. The beneficial effects of EGb on fish growth performance may be associated with improved digestive ability. Dietary inclusion of EGb enhanced the antioxidant status to improve hypoxia tolerance and disease-resistance ability in fish. The aqueous extract (AQE) derived from <em>Ginkgo biloba</em> leaves demonstrated superior beneficial effects compared to other extracts.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 576-586"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molybdate application in the early stages of shrimp growth suppresses sulphide formation in a shrimp pond bottom model","authors":"Funda Torun ,&nbsp;Feyzâ Matisli ,&nbsp;Barbara Hostins ,&nbsp;Peter De Schryver ,&nbsp;Nico Boon ,&nbsp;Jo De Vrieze","doi":"10.1016/j.aaf.2025.11.004","DOIUrl":"10.1016/j.aaf.2025.11.004","url":null,"abstract":"<div><div>Oxygen depletion and sulphide formation, resulting from the accumulation of organic waste, are common challenges in shrimp ponds that could result in complete harvest failure. The stage at which these circumstances occur during the shrimp growth period remains elusive, yet, knowledge of the timing of oxygen depletion and sulphide formation is essential to enable remediating actions. Here, we used an experimental shrimp pond model at different stages in the shrimp growth period to determine when oxygen depletion and sulphide production occur. Microscale depth measurements of oxygen and H₂S were determined using microelectrodes to visualize their profiles at different depths of the water-sediment interface and the sediment. We evaluated the potential of different molybdate concentrations at different stages to determine the optimal conditions to suppress H₂S formation. Oxygen depletion and sulphide production took place in the middle of the shrimp growth cycle in the simulated model of waste accumulation. The addition of molybdate was only effective in the early stages of the onset of oxygen depletion and H₂S formation, and residual molybdate was required to ensure a continuous suppression of sulphide production. However, oxygen depletion could not be prevented and reintroduction of oxygen did not occur when molybdate was added. In conclusion, molybdate appeared to be an effective strategy to suppress H₂S formation at the onset of its production in a shrimp pond bottom model.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 595-604"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temperature stress alters transcriptomic and physiological responses in hybrid grouper (Epinephelus fuscoguttatus × Epinephelus lanceolatus)","authors":"Saleema Matusin ,&nbsp;Ellia Kartini Mujar ,&nbsp;Annie Christianus ,&nbsp;Norazrin Ariffin ,&nbsp;Annas Salleh ,&nbsp;Chen Fei Low ,&nbsp;Chou Min Chong ,&nbsp;Ina Salwany Md Yasin ,&nbsp;Muhammad Hafiz Abu Bakar ,&nbsp;Yuzine Esa ,&nbsp;Beng Chu Kua","doi":"10.1016/j.aaf.2025.11.001","DOIUrl":"10.1016/j.aaf.2025.11.001","url":null,"abstract":"<div><div>The continuous intensification of climate change exposes hybrid grouper to fluctuating temperatures, affecting physiology, immunity, and overall performance. This study investigates the molecular, biochemical, and histological responses of hybrid grouper (<em>Epinephelus fuscoguttatus</em> × <em>Epinephelus lanceolatus</em>) exposed to one day (21–33 °C) and five days (22–31 °C) temperature fluctuations. Sub-adult fish (20.95 ± 0.64 cm) were grouped into acute (A), tolerant (R), and sensitive (S) categories based on behavioural responses such as feeding and swimming behaviours. Skin transcriptome profiling revealed that the DEGs were most significantly enriched in genetic information processing networks, including pathways involved in folding, sorting and degradation, translation, and transcription. Genes involved in protein processing in the endoplasmic reticulum (<em>skp1, ero1a, rpn2</em>) were significantly upregulated in A vs C and R vs C groups, while genes involved in energy metabolism were significantly upregulated in S vs C group. However, genes involved in the ribosome pathway (<em>rpl22</em>, <em>rps15</em>, <em>rpl9</em>, <em>rps21</em>, <em>rpl12</em>, <em>rpl19</em>) were significantly downregulated across all three comparison groups. Biochemical markers, including elevated alanine aminotransferase (ALT) and glucose (GLU) levels and reduced lactate dehydrogenase (LDH) activity indicate metabolic disturbances. Histopathological alterations included hepatocytic vacuolation, inflammatory infiltration in the liver, and melanomacrophage aggregation in the spleen and head kidney, indicating systemic stress and immune activation. This integrated analysis reveals significant molecular and physiological mechanisms underlying thermal stress responses in hybrid grouper. The identified genes, pathways, and biomarkers offer valuable insights for improving stress resilience and guiding management strategies in aquaculture under climate change.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 519-539"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimized oligochitosan treatment for preserving postharvest quality of Sepia pharaonis during cold storage","authors":"Thi Hoan Vu ,&nbsp;Thi Phuong Nhung Tran ,&nbsp;Ngoc Boi Vu ,&nbsp;Thi My Trang Nguyen","doi":"10.1016/j.aaf.2025.11.012","DOIUrl":"10.1016/j.aaf.2025.11.012","url":null,"abstract":"<div><div><em>Sepia pharaonis</em> is a commercially valuable cephalopod, yet highly prone to quality deterioration during refrigeration. This study optimized the use of oligochitosan (COS) for cold storage preservation of <em>S. pharaonis</em> using a Box-Behnken design with three variables: COS concentration (0.5–1.5%), immersion time (30–150 s), and storage temperature (2–8 °C). The optimal condition (1.14% COS, 60 s, 4 °C) was validated in independent runs after 7 days. The optimal condition (1.14% COS, 60 s, 4 °C) yielded the highest sensory acceptability (8.9 on a 9-point hedonic scale) after 7 days. COS-treated samples showed significantly lower total volatile base nitrogen (TVB-N) (47.58 mg N/100 g DW), ammonia (NH₃) (11.32 mg/100 g DW), and peroxide value (POV) (7.84 μmol KOH g⁻¹ dry weight), indicating delayed protein and lipid degradation. Microbial loads, including total plate count and <em>Pseudomonas</em> spp., were also significantly reduced (<em>P</em> &lt; 0.01). The results support COS as a natural preservative that enhances the shelf life and safety of <em>S. pharaonis</em>, offering a viable alternative to synthetic additives in seafood processing.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 605-611"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epigenetic mechanisms and applications in aquaculture and fisheries, with perspectives on technology and analysis","authors":"Guoqing Lu ,&nbsp;Jun Wang ,&nbsp;Mingkun Luo ,&nbsp;Chenghui Wang","doi":"10.1016/j.aaf.2025.10.002","DOIUrl":"10.1016/j.aaf.2025.10.002","url":null,"abstract":"<div><div>Epigenetics has emerged as a promising field, providing the molecular framework that links an organism's genome to its environment. This review synthesizes recent advances in aquatic epigenomics, highlighting how a multi-layered network of core mechanisms, including DNA methylation, histone modifications, non-coding RNAs, and three-dimensional genome architecture, collectively shapes commercially valuable traits. These traits, which are fundamental to the productivity and resilience of aquatic species, encompass growth, development, reproduction, sex determination, metabolic efficiency, immune defense, and adaptation to environmental stressors. We explore the paradigm shift from passive genetic selection to proactive environmental programming, detailing applications in domestication, broodstock management, and disease resistance through strategies like epigenetic priming and microbial education. Furthermore, this review provides a critical overview of advanced technologies and bioinformatics pipelines that are democratizing the field, from enzymatic methylation sequencing and CUT&amp;Tag to the development of non-invasive monitoring tools such as epigenetic clocks based on environmental DNA. Despite its immense promise, significant challenges remain, including elucidating the complex interplay between genetic and epigenetic variation, validating causal epi-markers, and understanding the mechanisms of stable transgenerational inheritance. Realizing the full potential of epigenetics through strategies such as epigenetic priming and microbiome-mediated programming will require sustained interdisciplinary efforts to integrate epigenomic insights into selective breeding and ecosystem-based management frameworks.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 411-422"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional role of non-conventional ascomycetous yeasts in modulating aquaculture species","authors":"Sayali Haldule,&nbsp;Mamata Singhvi,&nbsp;Smita Zinjarde","doi":"10.1016/j.aaf.2025.11.007","DOIUrl":"10.1016/j.aaf.2025.11.007","url":null,"abstract":"<div><div>Globally, the aquaculture industry is one of the fastest-growing sectors in food production. To modulate the health and growth conditions of aquaculture species, probiotic feed supplements, additives, and immunostimulants of microbial origin have been used. Yeasts are becoming increasingly significant in meeting the nutritional requirements of aquaculture species, with <em>Saccharomyces cerevisiae</em> being the most extensively studied. Several other potential non-conventional Ascomycetous yeasts, such as <em>Debaryomyces hansenii</em>, <em>Yarrowia lipolytica, Candida</em> spp.<em>, Wickerhamomyces</em> spp., <em>Kluyveromyces</em> spp., <em>Blastobotrys adeninivorans</em>, and <em>Metschnikowia</em> spp., are emerging as lucrative alternatives. Products such as β-glucans, mannan oligosaccharides, pigments, and nucleotides derived from them are also gaining popularity for enhancing the overall health and performance of aquaculture species. These lesser-explored yeast genera are utilized as probiotics, feed additives, nutritional supplements, or immunostimulants in the aquaculture industry. They help improve growth performance, antioxidant activity, and hematological parameters of aquaculture species. When included in diets, they can enhance immunity, digestion, and disease resistance against various pathogens affecting aquaculture yields. Some also serve as protein sources or enhance pigment production. Strategies such as using low-cost substrates, optimizing process parameters, metabolic engineering, and genetic manipulation of these yeasts are crucial for their sustainable application in aquaculture. This review summarizes the effects of non-conventional Ascomycetous yeasts in improving the overall well-being of various aquaculture species.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 480-498"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal adaptation strategies in crustaceans: Potential threats to aquaculture in a warming climate","authors":"Qiujin Wang ,&nbsp;Liang Jia ,&nbsp;Beiqi Yang ,&nbsp;Yi Liu ,&nbsp;Zhiyi Bai","doi":"10.1016/j.aaf.2025.08.010","DOIUrl":"10.1016/j.aaf.2025.08.010","url":null,"abstract":"<div><div>Global warming severely challenges aquatic ecosystems and aquaculture, threatening crustacean production through rising temperatures and extreme heat events. As ectotherms with limited thermoregulatory capacity, crustaceans are vulnerable to prolonged thermal stress. Yet, they exhibit remarkable thermal adaptability and behavioral thermoregulation across diverse thermal zones. This review synthesizes evidence that crustaceans employ a hierarchical suite of behavioral responses to heat stress: a primary response involving temperature perception via ion channels and neural signal transmission; a secondary response involving energy allocation, body protection, and enhanced neuromuscular coordination regulated by hormones, enzymes, and genes to maintain homeostasis; and a tertiary response involving behavioral adjustments impacting growth, survival, and reproduction. Crucially, as temperatures approach species-specific tolerance thresholds, crustaceans engage in thermal navigation to avoid detrimental extremes. This resilience is fundamentally rooted in the nervous system's plasticity, enabling adaptation within bounds. However, short-term acclimation often fails to shift intrinsic thermal preferences or adequately resolve the inevitable physiological trade-offs between survival, growth, and reproduction under sustained thermal stress, creating a conflict for aquaculture objectives. Over time, extreme temperatures act as potent selection pressures. While driving phenotypic plasticity, they risk population decline, particularly in stenothermic species contracting their ranges. Eurythermic species, with greater neural and behavioral plasticity, show superior resilience but risk diluting valuable commercial traits through increased genetic polymorphism. Understanding these adaptation mechanisms, including the identification of critical thermal thresholds and the neural basis of plasticity limits, provides crucial insights. Future research must prioritize investigating transgenerational inheritance of thermal responses and selecting breeding stock with enhanced neural plasticity or the capacity to maintain growth-reproduction equilibrium under warming, alongside identifying resilient eurythermic strains suitable for aquaculture. The review examines external thermoregulation mechanisms in sensation, molecular regulation, physiological responses, and ecological adaptations. It provides strategic insights for crustaceans and aquaculture species confronting escalating thermal stress.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 444-462"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The present landscape of both traditional and innovative biotechnology driven vaccines for fish diseases in global aquaculture","authors":"Jiban Kumar Behera ,&nbsp;Bhaskar Behera ,&nbsp;Manojit Bhattacharya","doi":"10.1016/j.aaf.2025.10.001","DOIUrl":"10.1016/j.aaf.2025.10.001","url":null,"abstract":"<div><div>The most significant limiting factors in aquaculture, which comprise the majority of the rapidly expanding seafood industry, are infectious diseases of various origins, including viral, bacterial, mycotic, and parasitic infections. As a result, the global aquaculture industry has undergone a significant economic transformation in recent years. The vaccination tactics were also highly effective and affordable, protecting the fish from numerous pathogens, which is crucial for fish culture and societal issues. For over 50 years, researchers have widely recognized fish vaccination as an effective method for preventing many bacterial and viral infections. Vaccination programs enhance the environmental, social, and economic viability of global aquaculture. Science has made significant strides in both fundamental and applied research fields, opening up new paths for creating and improving innovative and efficient vaccines that protect against various infectious diseases. Therefore, recent advancement in vaccines and immunization recommend excellent opportunity to discover new vaccine alternatives these may be effective in combating viruses that cause disease in aquatic creatures. This study highlights the scientific discoveries, current understanding, and prospects for utilizing several vaccines in the aquaculture sector. This review discusses the current generation of vaccinations, including subunit, recombinant, mucosal, synthetic peptide, DNA, vectored, monovalent and polyvalent vaccine and reverse vaccinology. It also discusses the historically inactive and attenuated vaccines. This paper overview to traditional vaccines used in aquaculture and present a comprehensive outline of the more recent approaches and innovative technologies in aquaculture vaccine production.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 423-443"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential antibiotics contamination in aquaponic systems: Antimicrobial gene, mitigation and treatment approaches","authors":"Bhesh Kumar Karki ,&nbsp;Suniti Shrestha ,&nbsp;Suman Poudel ,&nbsp;Michael J. Angove ,&nbsp;Raju Kumar Gupta ,&nbsp;Shukra Raj Paudel","doi":"10.1016/j.aaf.2025.11.006","DOIUrl":"10.1016/j.aaf.2025.11.006","url":null,"abstract":"<div><div>This study provides a comprehensive review of the potential sources, occurrence, and impacts of antibiotics in aquaponics, along with suggested alternatives and mitigation measures to address contamination. Despite the standard prohibition against using antibiotics in aquaponics, their presence and the occurrence of antibiotic resistance genes (ARGs) remain concerning due to misuse and secondary contamination from various sources. Antibiotics can enter the aquaponic environment through various sources, such as hospital discharges, wastewater treatment facilities, and other feed sources. Existing literature on the impacts of antibiotics and ARGs in aquaponics is limited. When antibiotics enter the system, they can be detected in different components of aquaponics such as water, sediment, fish bodies, and plant roots, increasing the likelihood of developing antibiotic resistance. The emergence of ARGs could mainly occur through horizontal or vertical gene transfer pathways, while, external factors such as the presence of heavy metals and microplastics can facilitate the acquisition and proliferation of these genes. This study proposes alternative methods for disease management, enhancing systemic immunity, and future research directions. It also recommends various treatment technologies that might be integrated into aquaponic systems to mitigate the potential antibiotic contamination, aiming to prevent the issues that have arisen in traditional aquaculture, where the overuse of antibiotics has turned environments into hotspots for the proliferation of ARGs.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 463-479"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First-ever trial of hard clam Meretrix meretrix aquaculture in Bangladesh: Evaluation of floating platform-based hapa, basket, and bag methods with the effect of site-specific eco-physiological factors","authors":"Mohammad Sadequr Rahman Khan ,&nbsp;Shoman Datta ,&nbsp;Mohammad Najmul Hasan ,&nbsp;Harun Or Rashid ,&nbsp;Monoara Akter Lima ,&nbsp;Abrar Shakil ,&nbsp;Mohammed Nurul Absar Khan","doi":"10.1016/j.aaf.2025.11.002","DOIUrl":"10.1016/j.aaf.2025.11.002","url":null,"abstract":"<div><div>Global bivalve mollusk aquaculture has grown significantly in recent decades due to their economic, ecological, nutritional, and health benefits. Despite their suitability for mariculture, clam aquaculture remains unexplored in Bangladesh. This study marks the first trial of hard clam, <em>Meretrix meretrix</em> aquaculture in two southeast coastal channels, Chowfaldandi and Rejukhal, using three culture systems-hapa (net cage), basket, and bag-suspended from floating bamboo rafts. The potential effect of eco-physiological parameters on growth, survival and culture systems was also evaluated. After six-month (March–September) of culture, significantly greater survival was found in hapa systems (36% and 51%) compared to baskets (2.3% and 10.7%) and bags (9.5% and 16.6%) at both sites. Covarience revealed location alone did not significantly impact survival, but culture system-location interaction was critical. Growth performance, including shell length increment and weight gain, was significantly higher in hapa systems, especially at Rejukhal. Growth correlated positively with temperature, turbidity, and phytoplankton abundance but negatively with salinity, while dissolved oxygen and pH showed no significant impact. Phytoplankton abundance was temperature-dependent and negatively affected by salinity and pH. A drop of salinity, pH and DO during monsoon rain reduced shell growth. Principal Component Analysis showed that the phytoplankton, dissolved oxygen, and temperature positively influenced growth, while salinity and pH enhanced survival. This study highlights the potential of multi-layer suspended clam culture technology to promote integrated multi-trophic aquaculture, enhance sustainability, support carbon-neutral practices, create alternative livelihoods, and alleviate pressure on wild populations in Bangladesh's coastal ecosystems.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 618-635"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}