Aquaculture and Fisheries最新文献

{"title":"Genome-wide identification and expression analysis of cytochrome P450 gene family in Macrobrachium nipponense","authors":"Xiao Wu ,&nbsp;Zheyan Chen ,&nbsp;Yaoran Fan ,&nbsp;Jianbin Feng ,&nbsp;Jiale Li","doi":"10.1016/j.aaf.2023.12.004","DOIUrl":"10.1016/j.aaf.2023.12.004","url":null,"abstract":"<div><div>Cytochrome P450 (CYP450) is a superfamily widely found in various biological organisms, including animals, plants, and microorganisms. CYP450 is involved in the metabolism of endogenous and exogenous substances. In addition, a few CYP450 genes named as Halloween genes (CYP302a1, CYP307a1, etc.) are associated with the synthesis and secretion of ecdysone in Arthropods. <em>Macrobrachium nipponense</em> (Arthropoda, Crustacean) has many excellent breeding characteristics; for example, rapid growth rate, ability to survive in a variety of environments and high economic value. In order to further explored the structure and function of CYP450, a genome-wide analysis of CYP450 gene family was performed in <em>M. nipponense</em>. A total of 67 CYP450 genes were identified, and extensive bioinformatic analysis methods were conducted, including physicochemical property, sequence alignment, evolutionary tree construction, conserved sequence, chromosome localization, protein-protein interactions, and quantitative expression. The results showed that most CYP450 genes being around 500 amino acids, with 25 tandem repeats genes. The majority of CYP450 genes have the signature structure of the CYP450 gene family to ensure the stability of the spatial structure and the ability to bind substrates. The Halloween genes and CYP18a1 sequences are similar and occupy an importance role in <em>M. nipponense</em>. Finally, most CYP450 genes were up-regulated in gill and hepatopancreas of <em>M. nipponense</em> under acute high temperature stress, with significant up-regulation of Halloween gene expression. This study could further deepen the understanding of the structure and function of CYP450 in <em>M. nipponense</em> and investigate the role of CYP450 in freshwater crustaceans under high temperatures.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 228-237"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715786","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":"The isolation and functional identification of a phosphoenolpyruvate carboxykinase gene from Saccharina japonica","authors":"Peichong Lin ,&nbsp;Yatong Yao ,&nbsp;Lijuan Lu ,&nbsp;Yanhui Bi ,&nbsp;Zhigang Zhou","doi":"10.1016/j.aaf.2023.08.007","DOIUrl":"10.1016/j.aaf.2023.08.007","url":null,"abstract":"<div><div>Similar to other macroalgae, <em>Saccharina japonica</em> has CO₂-concentrating mechanism (CCM) that allows high photosynthesis efficiency and elevates biomass. Phosphoenolpyruvate carboxykinase (PEPCK) in cytoplasm is an essential component of CCM. However, no reports on cytosolic PEPCK of <em>S. japonica</em> are available. In this study, the full-length cDNA sequence of a PEPCK gene (<em>SjPCK1</em>) predicted to be localized in cytoplasm, was screened from the full-length transcriptome of <em>S. japonica</em> gametophytes and identified by RT-PCR. The complete cDNA sequence of <em>SjPCK1</em> was 2174 bp in length, which encompassed an open reading frame (ORF) of 1734 bp, a 5′- untranslated region (UTR) of 216 bp and a 3′-UTR of 224 bp. In parallel, the genomic DNA of <em>SjPCK1</em> was 21 294 bp in length, characterized by the presence of 11 introns and 12 exons. It encoded a protein of 577 amino acids with a molecular weight of 63 kD and an <em>isoelectric point</em> of 8.47. Amino acid sequence alignment showed that the functional sites of PEPCK were highly conserved in the selected species. Phylogenetic analysis and sequence characterization showed that <em>SjPCK1</em> was an ATP-dependent PEPCK. <em>SjPCK</em>1 gene was expressed by using <em>Escherichia coli</em> prokaryotic expression system, and the SjPCK1 protein with His 6 tag (rSjPCK1) was 81.93 kD in molecular weight. Enzyme activity assay results showed that the specific activity of carboxylase and decarboxylase of rSjPCK1 was 1.91 ± 0.29 U/mg prog and 11.3 ± 1.97 U/mg prog, respectively. These findings provide valuable molecular and biochemical insights for a further analysis of the role of cytosolic PEPCK in the storage of inorganic carbon in <em>S. japonica</em>.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 210-218"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135433958","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":"Effect of acute temperature stress on energy metabolism, immune performance and gut microbiome of largemouth bass (Micropterus salmoides)","authors":"Shuaibing Ma ,&nbsp;Yabing Lv ,&nbsp;Liang Hou ,&nbsp;Zhiming Jia ,&nbsp;Shen Lin ,&nbsp;Shaodi Wang ,&nbsp;Xugang He ,&nbsp;Jie Hou","doi":"10.1016/j.aaf.2023.10.001","DOIUrl":"10.1016/j.aaf.2023.10.001","url":null,"abstract":"<div><div>Frequent occurrences of extreme weather events, particularly severe temperature fluctuations, have significantly impaired the growth and health of fish and resulted in detrimental impacts on aquaculture production. Despite recognition of the crucial role that temperature plays in aquaculture, there is currently inadequate research to assess the consequences of extreme temperature fluctuations on fish health. Hence, we set up acute warming (AW) and cooling groups (AC) by increasing or decreasing water temperature by 8 °C and then gradually restoring the initial temperature (22 °C), to investigate the adaptive regulation of energy metabolism, immune function, and gut microbiota in largemouth bass (<em>Micropterus salmoides</em>). The fish antioxidant system responded to assist their environmental adaptation: both groups showed activation of serum superoxide dismutase (SOD) and catalase (CAT) secretion, and a significant increase in serum total antioxidant capacity (T-AOC) (<em>P</em> &lt; 0.05). Distinct metabolic strategies were employed to cope with sudden environmental perturbations: upon experiencing a temperature decrease (AC1), largemouth bass exhibited a significant increase in serum triglyceride (TG) and cholesterol (CHOL) levels (<em>P</em> &lt; 0.05), coupled with a reduction in blood glucose levels (<em>P</em> &lt; 0.05). However, a considerable reduction in serum TG and CHOL levels was observed after acute warming stage (AW1) (<em>P</em> &lt; 0.05). Following the recovery of temperature, both groups demonstrated a tendency towards normal energy metabolism (CON). Compared to the AW group, the immune function of largemouth bass in the AC group was dramatically affected: alkaline phosphatase (AKP), aspartate transaminase (AST), and alanine transaminase (ALT) increased significantly, while lysozyme (LZM) decreased significantly when the temperature dropped sharply (<em>P</em> &lt; 0.05). After the temperature fluctuations, there were apparent changes in the gut morphology and microbiota of largemouth bass. Microbial functional analysis using the KEGG database revealed apparent alterations in microbial biological functions, especially during the cooling fluctuation (AC). The results indicated that dramatic weather changes, particularly extreme cold, may be detrimental to the health and welfare of largemouth bass.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 260-270"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136009492","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":"Polyculture of European seabass and Nile tilapia in the recirculating aquaculture system with brackish water: Effects on the growth performance, feed utilization, and health status","authors":"Mahmoud A.O. Dawood ,&nbsp;Khaled Madkour ,&nbsp;Hani Sewilam","doi":"10.1016/j.aaf.2023.11.001","DOIUrl":"10.1016/j.aaf.2023.11.001","url":null,"abstract":"<div><div>Non-traditional aquaculture practices are crucially needed to overcome the climate change consequences, especially in countries suffering from water shortages. Polyculture strategy depends on the diversification and compilation between different aquatic animal species to fasten farmed species' growth and improve available resources' utilization. In this study, European seabass and Nile tilapia were poly-cultured in brackish water (salinity 12) in a recirculating aquaculture system (RAS). For this reason, fish were distributed into five groups with triplicates in each. The first group (G1) of aquaria (120 L) was stocked with 40 specimens of European seabass, the second group (G2) was stocked with 30 specimens of European seabass + 10 specimens of Nile tilapia, the third group (G3) was stocked with 20 specimens of European seabass + 20 specimens of Nile tilapia, the fourth group (G4) stocked with 10 specimens of European seabass + 30 specimens of Nile tilapia, and the fifth group (G5) stocked with 40 specimens of Nile tilapia. The dissolved oxygen (DO), total ammonia nitrogen (TAN), and NH₃–N showed higher levels in G2, G3, G4, and G5 than in G1 (<em>P</em> &lt; 0.05). Except for G5, European seabass showed higher growth performance indices (FW, WG, and SGR) and lower FCR in G4 than in G1, G2, and G3 (<em>P</em> &lt; 0.05). On the other hand, Nile tilapia growing in G2 resulted in higher FW, WG, and SGR and lower FCR than in G3, G4, and G5 (<em>P</em> &lt; 0.05). The total biomass of poly-cultured European seabass and Nile tilapia is higher in G3 than in G1 and G5 (<em>P</em> &lt; 0.05). All groups had no significant differences in the somatic indices (P˃0.05). In European seabass, the crude protein and total lipids were significantly increased in fish compared to the initial carcass composition (<em>P</em> &lt; 0.05). Besides, in Nile tilapia, the total lipids were significantly increased in fish compared to the initial carcass composition (<em>P</em> &lt; 0.05). Furthermore, no significant differences were seen between all groups (<em>P</em>＞0.05) on the blood total protein, albumin, globulin, ALT, and AST. In conclusion, the polyculture strategy is appropriate for farming European seabass and Nile tilapia in RAS with brackish water without compromising growth performance, health status, and survivability.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 298-304"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139291982","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":"Geographical and species differences of fatty acid components of small pelagic fishes, micronekton, and squids in the northwestern pacific","authors":"Seiji Ohshimo ,&nbsp;Yuko Hiraoka ,&nbsp;Yasuhiro Ando","doi":"10.1016/j.aaf.2023.10.005","DOIUrl":"10.1016/j.aaf.2023.10.005","url":null,"abstract":"<div><div>Geographical and species differences in fatty acid composition were evaluated among 546 specimens of small pelagic fish, micronekton, and squid in the Northwestern Pacific. For all species except for four micronekton species, the dominant fatty acid was docosahexaenoic acid (DHA). The ratios of ω3 to ω6 fatty acids and DHA to eicosapentaenoic acid (EPA) differed among species and organisms. ω3:ω6 and DHA:EPA were generally lower in micronekton than in squids and small pelagic fishes. The ω3:ω6 values in the northeastern area was higher than that in the southwestern area, meanwhile the DHA:EPA values in the northeastern area was lower than that in the southwestern area. Geographical differences in fatty acid components, DHA:EPA, and ω3:ω6 could have been caused by environmental factors as well as by regional differences in the quality and quantity of phytoplankton-produced organic matter. Non-metric multidimensional scaling of the main fatty acid components showed clear species and geographical differences. A permutational multivariate analysis of variance revealed significant differences among small pelagic fishes, micronekton, and squids. These results indicate that fatty acid analysis can be used to understand the ecology and ecosystem roles of various species.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 238-252"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139300605","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":"Prevalence, molecular typing, antibiogram and histopathological changes of V. harveyi and V. parahaemolyticus isolated from Gilthead sea bream (Sparus aurata)","authors":"Salah M. Aly ,&nbsp;Noha I. ElBanna ,&nbsp;Mohamed A. Elatta ,&nbsp;Mai Hegazy ,&nbsp;Mohamed Fathi","doi":"10.1016/j.aaf.2023.11.002","DOIUrl":"10.1016/j.aaf.2023.11.002","url":null,"abstract":"<div><div>Vibrionaceae are a common bacterial disease that affects both wild and farmed marine fishes and causes tremendous economic losses globally. In order to investigate the prevalence, molecular typing, antibiogram and pathogenicity of vibriosis among cultured sea bream, two hundred and fifty Gilthead seabream (<em>Sparus aurata</em>) were collected randomly from different mariculture farms at Ismailia and Port Said Governorates. The collected fish were subjected to clinical, postmortem, bacteriological, and histopathological examinations. The majority of infected fish displayed ascites, hemorrhagic protruded anus, hemorrhages in pectoral, dorsal and tail fins, rotten gills, thinning of the head, discoloration of the skin, besides ulcer in the mouth and on the skin. The prevalence of Vibrio infection mostly was noticed at summer (35%) and spring (26%) then (22.5%) in autumn, where the kidney was the most predominant affected organ (45%). Vibrio <em>16s r</em>RNA gene PCR extension generated a 663 pb amplified DNA bands that characteristic for all tested vibrio isolates. Blasting identified as <em>V. harveyi</em> and the other <em>V. parahaemolyticus</em>. The histopathological examination of naturally infected Gilthead seabream exhibited mild to moderate vacuolar degeneration of the hepatic parenchyma with tubular-nephrosis and massive renal cellular destruction. The splenic tissues showed focal activated melanomacrophage centers. The antimicrobial sensitivity was carried out, where the recovered strains were completely sensitive to novobiocin and highly resistant to ampicillin. In conclusion, the synergism of phenotypic and genotypic characterization is a valuable epidemiological tool for the diagnosis of <em>Vibrio</em> species. Strict veterinary hygienic regulations should be implemented to control such infections and minimize the antimicrobial use in fish farms.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 281-288"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139302222","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":"Myricetin inhibits Micropterus salmoides rhabdovirus infection by damping inflammation through the NF-κB pathway","authors":"Zhiwen Wang ,&nbsp;Ping Deng ,&nbsp;Zemao Gu ,&nbsp;Lijuan Li ,&nbsp;Junfa Yuan","doi":"10.1016/j.aaf.2023.08.004","DOIUrl":"10.1016/j.aaf.2023.08.004","url":null,"abstract":"<div><div>Largemouth bass have been plagued by diseases elicited by bacteria, parasites, and viruses, particularly viral diseases, which have caused significant economic losses in recent years. And there is a lack of approved antiviral drugs in the aquaculture industry. <em>Micropterus salmoides</em> Rhabdovirus (MSRV) is the causative agent of <em>Micropterus salmoides</em> Rhabdovirus disease, which mostly affects largemouth bass fry. By using experimental infection, transcriptome sequencing, and inhibitor treatment, the inflammatory response mediated by mitogen-activated protein kinase (MAPK), phosphatidylinositol3-kinase (PI3K), and nuclear factor kappa-B (NF-κB) pathways was verified as one of the pathological processes of MSRV infection. Further, Myricetin, arteannuin, naringenin, ursolic acid, andrographolide, and resveratrol were selected to evolute their anti-inflammatory activity based on the promoter of NF-κB and found myricetin, naringenin, andrographolide, and resveratrol significantly inhibited NF-κB 1 promoter activity. Myricetin was found to damp MSRV caused-inflammation and inhibit MSRV infection by suppressing NF-κB signaling. Besides, myricetin improves the survival rate of largemouth bass after MSRV infection. In conclusion, myricetin presented anti-MSRV activity by targeting the NF-κB inflammatory pathway and can be further developed as a potential preventative drug of rhabdovirus disease.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 271-280"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135433954","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":"Gillnet colour affects catch efficiency in pearlspot (Etroplus suratensis) tropical estuary fishery","authors":"Kristine Cerbule ,&nbsp;V.R. Madhu ,&nbsp;Salini Mohanan ,&nbsp;Bent Herrmann","doi":"10.1016/j.aaf.2023.09.002","DOIUrl":"10.1016/j.aaf.2023.09.002","url":null,"abstract":"<div><div>Gillnets are one of the most commonly used fishing gears in both marine and inland waters. Different colour filament nettings are often used in gillnets. However, the effect of gillnet colour on catch efficiency is unclear for most fisheries. Therefore, in this study we investigated the effect of gillnet colour on the catch efficiency in pearlspot (<em>Etroplus suratensis</em>) fishery in Vembanad lake, India. Gillnet colours tested were transparent, green and blue. Results showed that in this fishery, the catch efficiency of gillnets of the three colours tested differed significantly. The highest catch efficiency of pearlspot was shown by green gillnets compared to transparent or blue netting. Specifically, green gillnets on average were estimated to be 74% more efficient compared to transparent gillnets. For the green compared to the blue gillnets, the catch efficiency was estimated to be higher by 81%. These results demonstrate that gillnet colour can be an important factor significantly affecting the catch efficiency of this fishing gear.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 321-329"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963364","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":"Age, growth and length-to-weight relationship of largehead hairtail (Trichiurus lepturus) in south-eastern Australia suggest a distinct population","authors":"Chantelle Clain ,&nbsp;John Stewart ,&nbsp;Ashley Fowler ,&nbsp;Sandra Diamond","doi":"10.1016/j.aaf.2023.08.005","DOIUrl":"10.1016/j.aaf.2023.08.005","url":null,"abstract":"<div><div>The age, growth rates and length to weight relationships for the south-eastern Australian population of largehead hairtail (<em>Trichiurus lepturus</em>) were investigated for the first time. Age was estimated by counting annuli in sectioned sagittal otoliths, with a maximum age of 8 years estimated for males and females. We found no significant differences in the growth rates of males and females over the size (12–78 cm pre-anal length (PL)) and age (0–8 years) ranges sampled. However, females in our collection were larger on average than males, and all fish sampled &gt;60 cm PL were female, suggesting that females may grow to larger sizes than males and that sampling of greater numbers of larger and older fish may be required in future. <em>T. lepturus</em> growth was described by the von Bertalanffy growth function parameters L_∝ = 74.89 cm PL, K = 0.13yr⁻¹ and t0 = −0.80 yr, with the L_∝ being amongst the largest reported for the species. Growth was variable, with the sizes at any given age spanning up to 50 cm PL. Female <em>T. lepturus</em> increased in body weight relative to length faster than males, as has been reported in other populations. The length/weight relationship for the south-eastern Australian population was significantly different, with almost no overlap, from that reported for <em>T. lepturus</em> in the Arabian Sea. The substantial differences in growth rates, maximum sizes and body morphometrics of <em>T. lepturus</em> from south-eastern Australia in comparison to other populations globally are consistent with the hypotheses that it represents a distinct population, although investigations using additional population markers are required to verify this.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 305-311"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135427647","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":"Developing predictive growth models for Asian seabass using four generations of data","authors":"Joey Wong ,&nbsp;Yi Xuan Tay ,&nbsp;Genhua Yue","doi":"10.1016/j.aaf.2023.08.010","DOIUrl":"10.1016/j.aaf.2023.08.010","url":null,"abstract":"<div><div>Growth is an important trait in aquaculture breeding programs and production. Cost-effective and precise measurement of growth traits provides valuable information for growth monitoring, feed management, stocking density, size grading, and health management. However, in aquaculture species, precise measurement of growth traits is challenging. Predictive growth models based on large data sets have the potential to tackle this challenge. Here, we developed predictive growth models for the analysis of growth parameters for the Asian seabass using the dataset from four separate generations (F₁-F₄), aged between 90- and 768-days post-hatch (dph) in a 20-year selective breeding program. To analyze the length-weight relationship of the fish, the equation <span><math><mrow><mi>W</mi><mo>=</mo><mi>a</mi><msup><mi>L</mi><mi>b</mi></msup></mrow></math></span> was used to estimate the parameters <span><math><mrow><mi>a</mi></mrow></math></span> and <span><math><mrow><mi>b</mi></mrow></math></span>. Our results showed that there were high positive correlations between body length and weight in each generation. In addition, to explore the relationships between body weight and ages, for each generation of fish, we fitted two different models: the von Bertalanffy Growth Function (VBGF) and the Gompertz model to analyze the Age-Weight Relationship (AWR). Out of the two, the VBGF, showed a higher goodness of fit. These developed predictive growth models, in combination with digital imaging, will reduce the cost and time for measuring growth traits for breeding programs of Asian seabass, and the effective management of commercial production.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 2","pages":"Pages 253-259"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136009414","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}