Aquaculture International最新文献

{"title":"A simple way of using prebiotic towards sustainable shrimp aquaculture practice","authors":"Allie N. U.,&nbsp;Sudama Swain,&nbsp;P. Ezhil Praveena,&nbsp;T. Bhuvaneswari,&nbsp;Akshaya Panigrahi,&nbsp;Kuldeep K. Lal,&nbsp;Subhendu Kumar Otta","doi":"10.1007/s10499-025-01991-0","DOIUrl":"10.1007/s10499-025-01991-0","url":null,"abstract":"<div><p>Shrimp farming that has experienced rapid growth globally faces significant economic challenges due to frequent disease outbreaks. In the absence of a fully developed immune system, immune enhancement shows the only option for reducing disease susceptibility. Prebiotics foster the growth of beneficial gut bacteria and play a key role in gut metabolism contributing to the immune enhancement. In the present study, inulin coated feed was used as a candidate prebiotic to study the effect on the growth, disease resistance, immune gene expression, and gut microbial diversity of <i>Litopenaeus vannamei</i>. Three concentrations of inulin was used coated to the normal basal feed (T1: 5 g/kg, T2: 10 g/kg, and T3: 20 g/kg) and compared with the control group (with no inulin) during a course of 30 days. Relatively, higher growth was observed in all the experimental groups. Significant (<i>P</i> &lt; 0.05) higher growth was observed with dosages of T2 and T3 feed than T1 feed group. Higher expression of selected immune genes were also observed in experimental groups. A prolonged period of protection in the experimental animals was observed when challenged with white spot syndrome virus while there was strong protection against <i>Vibrio parahaemolyticus</i>. Metagenomics analysis showed that the gut microbiota of experimental animals had a higher abundance of beneficial bacteria and diversity than that found in the control group. This study showed a convenient method of inulin coating onto the feed gave better growth and disease resistance in shrimp, which could provide a more economical and profitable.\u0000</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883732","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}

{"title":"International comparison, forecast and promotion strategy of shellfish consumption in China","authors":"Xiuhui Sun,&nbsp;Lintao Zhao,&nbsp;Jun Li,&nbsp;Lijun Jiang,&nbsp;Zifei Liu,&nbsp;Shiwei Xu,&nbsp;Lei Zhao,&nbsp;Zexi Yin","doi":"10.1007/s10499-025-01982-1","DOIUrl":"10.1007/s10499-025-01982-1","url":null,"abstract":"<div><p>Clarifying shellfish consumption trends domestically and internationally is key to balancing industry supply and demand. Using FAO and World Bank data, this study compares per capita shellfish consumption in China and other major countries from 1976 to 2022, identifying trends and proposing targeted strategies. Key findings include: (1) In 2022, China’s per capita consumption reached 10.52 kg, significantly higher than 1976 and 2000 levels and 16.44 times the global average, though lower than in Chile and South Korea; (2) In terms of sub-categories, China’s per capita consumption of oysters, clams, and scallops is well above global averages, while abalone and mussels have room for growth; (3) ARIMA (0,1,1) model can simulate and predict the apparent consumption and trend of shellfish per capita in China, with per capita consumption expected to reach 11.21 kg in 2025 and 16.77 kg in 2050;(4) Under the open economy, China’s shellfish consumption is primarily supported by domestic supply, while imports mainly serve to supplement high-quality products and meet the demands of the domestic premium shellfish market. In the context of insufficient domestic industrial upgrading and limited supply of high-quality products, the import of premium, fresh shellfish products is expected to increase in the future. It is recommended to accelerate the upgrading of the domestic shellfish industry, promote market-oriented processing, and cultivate product branding to enhance demand dynamics, drive high-quality industrial development, and support the implementation of major national strategies.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865447","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}

{"title":"Effects of Vibrio harveyi and oligochitosan non-specific immune response of hybrid groupers (Epinephelus fuscoguttatus ♀ × Epinephelus lanceolatus ♂) supplementation","authors":"Lixin Ma,&nbsp;Zhilong Chen,&nbsp;Hao Zhao,&nbsp;Xiaomin Zheng,&nbsp;Yutao Li,&nbsp;Zhendong Qin,&nbsp;Li Lin,&nbsp;Fei Shi","doi":"10.1007/s10499-025-01972-3","DOIUrl":"10.1007/s10499-025-01972-3","url":null,"abstract":"<div><p><i>Vibrio harveyi</i> is a major pathogen in aquaculture, severely affecting hybrid groupers. This study investigates the effects of <i>V. harveyi</i> infection and oligochitosan treatment on the growth, biochemical parameters, and immune responses of hybrid groupers. The results show that <i>V. harveyi</i> significantly reduced body weight (<i>P</i> &lt; 0.05), body length (<i>P</i> &lt; 0.05), and head kidney weight (<i>P</i> &lt; 0.05). Histopathological analysis revealed substantial damage to head kidney tissue and a significant decrease in head kidney cell count (<i>P</i> &lt; 0.05). Biochemical analysis of serum and head kidney samples showed that <i>V. harveyi</i> increased glutamic-pyruvic transaminase (GPT) activity (<i>P</i> &lt; 0.05) and reduced catalase (CAT) activity (<i>P</i> &lt; 0.01), while not affecting glutamic-oxaloacetic transaminase (GOT) or superoxide dismutase (SOD) activities. <i>V. harveyi</i> also increased GPT and GOT activities (<i>P</i> &lt; 0.05), and oligochitosan reduced GPT (<i>P</i> &lt; 0.01) and SOD activities (<i>P</i> &lt; 0.05) in the head kidney. Quantitative real-time PCR results indicated that <i>V. harveyi</i> downregulated interleukin-10 (<i>IL- 10</i>) (<i>P</i> &lt; 0.05) and upregulated interleukin-1β (<i>IL- 1β</i>) (<i>P</i> &lt; 0.05), interleukin-8 (<i>IL- 8</i>) (<i>P</i> &lt; 0.05), nuclear factor kappa-light-chain-enhancer of activated <i>B</i> cells p65 (<i>p65</i>) (<i>P</i> &lt; 0.05), and toll-like receptor 3 (<i>TLR- 3</i>) (<i>P</i> &lt; 0.05), which were partially reversed by oligochitosan. <i>V. harveyi</i> also upregulated cysteine-dependent aspartate-specific protease-3 (<i>caspase- 3</i>) (<i>P</i> &lt; 0.05) and bcl-2-associated x protein (<i>BAX</i>) (<i>P</i> &lt; 0.05) expression, increasing apoptosis, which was alleviated by oligochitosan supplementation, as shown by TdT-mediated dUTP nick-end labeling (TUNEL) assay (<i>P</i> &lt; 0.01). In conclusion, <i>V. harveyi</i> induces inflammation and impairs immune response in hybrid groupers, while oligochitosan can mitigate these effects and enhance immunity.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865446","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}

{"title":"Technical efficiency of Kappaphycus alvarezii farming in Wagina, Choiseul Province (the Solomon Islands)","authors":"James Ngwaerobo,&nbsp;Thanh Viet Nguyen,&nbsp;Rannveig Bjornsdottir","doi":"10.1007/s10499-025-01965-2","DOIUrl":"10.1007/s10499-025-01965-2","url":null,"abstract":"<div><p>The red algae species Kappaphycus alvarezii holds significant potential to evolve into a multimillion-dollar industry in the Solomon Islands. However, production levels have remained stagnant over the past decade. This study hypothesizes that technical inefficiencies at the farm level are a major factor limiting the industry's growth. Specifically, we examined the relationships between farm characteristics, resource use, and production efficiency in Wagina, an island with high cultivation potential. We selected 78 farmers for the survey via a structured questionnaire. Technical efficiency (TE) was assessed using Stochastic Frontier Analysis (SFA) conducted in R software. Results revealed mean TE values of 0.362 for small-scale and 0.535 for medium-scale production systems, suggesting substantial inefficiencies in resource utilization. Notably, the number of plots, the number of lines, and seed density per line were positively associated with TE, while education level and farmers’ age were negatively correlated. The results suggest that improving farm structures and optimizing resource allocation could enhance production efficiency. Addressing the factors that negatively influence TE may help unlock the industry’s full potential.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865445","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}

{"title":"Genetic improvement and phenotypic evaluation of tetraploid ‘Haida No. 3’ line of Pacific oysters (Crassostrea gigas) through four successive generations of mass selection","authors":"Jianmin Zhou,&nbsp;Chengxun Xu,&nbsp;Qi Li","doi":"10.1007/s10499-025-01976-z","DOIUrl":"10.1007/s10499-025-01976-z","url":null,"abstract":"<div><p>Tetraploid males provide two-thirds of the chromosomes to their triploid progeny, making tetraploid oysters increasingly important for triploid oyster production. Polyploidization based on selective breeding holds significant potential to enhance economically valuable traits in oysters and thereby contribute to increased productivity in commercial aquaculture. However, the genetic parameters of tetraploid oysters based on the selected diploid line have rarely been studied. To estimate the progress of potential genetic improvement, growth, survival, ploidy composition, fertility and sex ratio of a four-generation tetraploid mass selection based on the diploid ‘Haida No. 3’ line were evaluated. The results showed significant growth improvement in shell height for the selected line compared to the control line on both days 20 and 360 (<i>P</i> &lt; 0.05). At the grow-out stage, the selection response (SR) for shell height across four generations ranged from 0.40 to 0.65, the realized heritability (<i>h2 R</i>) ranged from 0.24 to 0.36, the genetic gain (GG) ranged from 6.28% to 10.36%. The wet weight at day 360 across four generations ranged from 35.65 ± 7.16 g to 52.46 ± 7.84 g, with significant differences observed between the selected and control lines (<i>P</i> &lt; 0.05). During the grow-out stage, the SR of wet weight ranged from 0.36 to 0.47, the <i>h2 R</i> ranged from 0.21 to 0.27, and the GG ranged from 8.04% to 11.31%. The cumulative survival and tetraploid rates of tetraploid ‘Haida No. 3’ line continued to increase throughout the selective breeding process. The sex ratio of tetraploid ‘Haida No. 3’ line changed dramatically from the first to the fourth generation, with the proportion of males decreasing from 65.625% to 35.625%. The results indicate the potential for improving the phenotypic characteristics of tetraploid oysters based on the selected diploid line through mass selection.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865448","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}

{"title":"Hatchability and growth performance of F1, F2, and backcross progenies of Epinephelus bruneus and Epinephelus lanceolatus","authors":"Ryuichiro Aoki,&nbsp;Tomoki Matsumasa,&nbsp;Tatsuya Kumada,&nbsp;Naoto Jin,&nbsp;Shukei Masuma","doi":"10.1007/s10499-025-01968-z","DOIUrl":"10.1007/s10499-025-01968-z","url":null,"abstract":"<div><p>In recent years, the aquaculture of hybrid groupers has gained popularity due to their favourable traits, such as superior growth and enhanced disease resistance compared to purebred species. In Japan, the hybrid grouper Kue-Tama (KT), a crossbreed of <i>Epinephelus bruneus</i> (LG) eggs and <i>Epinephelus lanceolatus</i> (GG) sperm, has emerged as a promising target for aquaculture. However, the sustainable production of KT seedlings is hindered by low egg hatching rates. In this study, we obtained eggs from KT reared in a subtropical region of Japan and conducted breeding experiments involving KT and GG to produce KT × KT (F₂) and KT × GG (BC₁) backcross hybrids. Direct comparison experiments revealed that the viable hatching rate of BC₁ was ten times higher than that of KT, at 7.5 ± 4.3% and 0.7 ± 1.3%, respectively. During 7 months of juvenile rearing, both BC₁ and KT exhibited comparable growth performance, significantly outperforming F₂, with markedly better feed efficiency and specific growth rates. The weight gain ratio of BC₁ (227.8 ± 70.0%) was 1.9 times greater than that of F₂ (119.3 ± 20.4%) and similar to that of KT (214.8 ± 15.5%). These findings suggest that the BC₁ hybrid could be a valuable species for aquaculture, offering greater hatching success and growth performance than KT.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10499-025-01968-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865444","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}

{"title":"Nanoparticle-driven aquaculture: transforming disease management and boosting sustainable fish farming practices","authors":"Esraa A. Abdelkarim,&nbsp;Tamer Elsamahy,&nbsp;Rasha M. El Bayomi,&nbsp;Mohamed A. Hussein,&nbsp;Ibrahim A. Darwish,&nbsp;Ahmed S. El-tahlawy,&nbsp;Waleed Alahmad,&nbsp;Ryhan J. Darling,&nbsp;Abd El-Salam E. Hafez,&nbsp;Mostafa Sobhi,&nbsp;Abdallah Abdelfattah,&nbsp;Mabrouk Sobhy","doi":"10.1007/s10499-025-01952-7","DOIUrl":"10.1007/s10499-025-01952-7","url":null,"abstract":"<div><p>The aquaculture industry plays a pivotal role in ensuring global food security and supporting the economic resilience of coastal communities. However, the prevalence of microbial diseases significantly threatens fish health, growth, and overall productivity, leading to substantial economic losses. The excessive use of antibiotics has further aggravated the emergence of antibiotic-resistant pathogens, highlighting an urgent need for sustainable and effective alternatives. This review critically examines the potential of nanoparticles (NPs) as innovative solutions for managing fish diseases and promoting sustainability in aquaculture. Due to their unique physicochemical properties, NPs demonstrate broad-spectrum antimicrobial activity, immune modulation capabilities, and prolonged protective effects against a wide range of fish pathogens. Moreover, the integration of NPs into polymeric or hydrogel matrices can enhance their stability, bioavailability, and efficacy, presenting a promising approach for disease management in aquaculture systems. This review emphasizes the significance of advancing NP-based applications and calls for comprehensive research to assess their long-term impacts on fish welfare, environmental health, and human safety. By effectively addressing the challenges of antibiotic resistance and microbial infections, nanotechnology has the potential to revolutionize aquaculture disease management, improve food safety, and foster sustainable practices, thereby reinforcing the industry's contribution to global food systems.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861208","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}

{"title":"Variability in growth and moulting of early post-larval prawn, Macrobrachium rosenbergii, fed with enriched Artemia","authors":"Adya Pandey,&nbsp;Rida Riyaz,&nbsp;Julia Hwei Zhong Moh,&nbsp;Yih Nin Lee,&nbsp;Lirong Yu Abit,&nbsp;Ravi Fotedar","doi":"10.1007/s10499-025-01967-0","DOIUrl":"10.1007/s10499-025-01967-0","url":null,"abstract":"<div><p><i>Macrobrachium rosenbergii</i>, popularly known as the giant freshwater prawn (GFP), is a commercially important aquaculture species. However, its commercial production faces several challenges, including low larvae survival due to the unavailability of suitable feed. An adequate nutritional input can offer higher post-larval (PL) survival. Live feed, such as <i>Artemia</i> by itself is not nutritionally rich; however, offers the possibility to enrich it with a variety of nutrients. The present study was performed to compare the effect of four <i>Artemia</i> spp-enrichment regimes on growth, moulting, and survival of PL of GFP reared in individual compartments. This physical isolation of GFP aims to prevent cannibalism, prevent dominant hierarchies, and record individual moult-related data. The early PL was fed with <i>Artemia</i> enriched with Yeast (control-T1), <i>Chlorella</i> spp. (T2), commercially enriched <i>Nannochloropsis</i> (Nanno 3600™) (T3), egg custard mixed with cod liver oil (T4). All feeding treatments were performed in triplicates, with each replica containing five PLs, and each PL was placed in a separate container inside a tank. Most suitable water quality parameters to maximise the growth of GFP were maintained for the 30-day trial. The diet T3 had the highest protein content (59.55%) whereas the diet T4 had the highest lipid content (18.94%). The early juveniles in the T3 and T4 treatment groups attained maximum weight, 40.10 ± 1.24 mg and 39.29 ± 1.18 mg, respectively. The highest DHA:EPA for the enriched <i>Artemia</i> was obtained for the T4 group (0.49). The highest SGR and relative biomass gain were obtained in PL of the T3 group; the diet for the same contained DHA:EPA of 0.27. The Condition factor (K) for treatments other than the control ranged between 0.72 and 0.79. An overall survival of 91.6% was achieved in this trial. As per the moult observation, 80% of PL moulted more than three times. There was no significant difference in moult interval among treatments; however, the mean moulting frequency ranged between 2.85 and 3.79. The first, second, and third moult intervals ranged between 7.82 and 9.60, 7.31 and 8.89, and 7.13 and 8.50 days, respectively. The present study concludes that the commercial <i>Nannochloropsis</i> and egg custard-cod liver oil enriched <i>Artemia</i> feed protocol developed in this study enhanced the growth and survival of PL.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10499-025-01967-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861207","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}

{"title":"Lead adsorbent of hydroxyapatite production from self-aggregated calcium-Sualo prawn shell waste and phosphate-rich wastewater of an integrated multi-technology whiteleg shrimp aquaculture system","authors":"Kamalia Assira Zakaria,&nbsp;Norhafiza Ilyana Yatim,&nbsp;Nora’aini Ali,&nbsp;Fathurrahman Lananan,&nbsp;Nor Azman Kasan","doi":"10.1007/s10499-025-01973-2","DOIUrl":"10.1007/s10499-025-01973-2","url":null,"abstract":"<div><p>This study presents a new approach to convert aquaculture waste into useful material. Shrimp shell waste (SSW) provides calcium, while aquaculture wastewater provides phosphorus to produce hydroxyapatite (HAp). Unlike conventional methods that use synthetic materials, this approach reuses waste, reducing resource consumption and pollution. The increasing consumption of seafood leads to a significant accumulation of waste from shrimp aquaculture, which is high in calcium and phosphorus. This study aims to investigate the valorization of this continuous and abundant waste into a renewable resource to produce a bioadsorbent, hydroxyapatite, for application in the removal of lead from wastewater. The calcined Sualo shrimp shells, sourced from the shrimp peel market, have great potential as they provide calcium resources and calcium carbonate recovered from waste. With increasing environmental concerns and strict water quality regulations, practical solutions for wastewater treatment, especially phosphorus removal, are in high demand. Using shrimp aquaculture wastewater as a phosphorus source and shrimp shell waste as a calcium precursor, hydroxyapatite was synthesized by a direct wet precipitation process. Optimized experimental conditions at a pH of 10 and a calcium/phosphate ratio of 1.67 during the 72-h synthesis process resulted in promising hydroxyapatite formation from these biogenic wastes. Characterization experiments showed that the hydroxyapatite produced from shrimp aquaculture waste was comparable to commercial samples and had a remarkable lead adsorption capacity of 1247.66 mg/g.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856478","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}

{"title":"Posterior saibo selection in the Japanese pearl oyster, Pinctada fucata martensii, as a non-genetic approach to producing high-quality cultured pearls","authors":"Suzuka Yamaoka,&nbsp;Gunawan Muhammad,&nbsp;Muhammad Helmi Fauzan,&nbsp;Asep Sahidin,&nbsp;Akira Komaru","doi":"10.1007/s10499-025-01970-5","DOIUrl":"10.1007/s10499-025-01970-5","url":null,"abstract":"<div><p>This study evaluates the repeatability of <i>saibo</i> selection influence on pearl quality in <i>Pinctada fucata martensii</i>, focusing on posterior <i>saibo</i> as a non-genetic approach to enhance pearl attributes. <i>Saibo</i> tissue from anterior, middle, and posterior mantle regions of donor oysters was grafted into 90 recipient oysters, with pearls cultured for 6 months in Ago Bay. Pearls were classified into quality categories (low, medium, high) and analyzed for luster, interference color, yellowness index (YI), whiteness index (WI), nacre thickness, irregular and organic layer thicknesses, nacre tablet thickness, and surface nacre tablet area. Results showed that middle and posterior <i>saibo</i> groups did not exhibit significant differences in total nacre thickness, but both had significantly thicker nacre layers compared to the anterior group (<i>p</i> &lt; 0.05). The posterior group exhibited thinner irregular (23.54 ± 2.86 µm) and organic layers (30.31 ± 6.66 µm, <i>p</i> &lt; 0.001) and larger surface tablet areas (6.104 ± 0.115 µm, <i>p</i> &lt; 0.001). Luster (0.112 ± 0.003) and interference color (0.123 ± 0.005, <i>p</i> &lt; 0.001) were significantly higher in posterior-derived pearls. Random forest analysis identified luster as the most critical quality predictor, while structural equation modeling confirmed negative impacts of irregular layer thickness (− 0.27*, <i>p</i> &lt; 0.05) and organic layer thickness (− 0.4***, <i>p</i> &lt; 0.001) on luster. This study confirms that posterior <i>saibo</i> consistently yields high-quality pearls, validating the repeatability of this method. This sustainable, non-genetic approach aligns with industry needs, reducing reliance on genetic modification. Future research should explore environmental factors to optimize this method further, ensuring reliable, high-quality pearl production.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856479","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}