Aquaculture International最新文献

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Correction to: Phytoplankton dynamics in aquaculture ponds in China: roles of nutrient loading, weather‑related parameters, and management practices 修正:中国水产养殖池塘浮游植物动态:养分负荷、天气相关参数和管理措施的作用
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-08 DOI: 10.1007/s10499-025-02241-z
Ke Rao, Chang Wu, Lu Yang, Minghao Sun, Liang Guo, Dan Wu, Xia Cao, Jing Xu
{"title":"Correction to: Phytoplankton dynamics in aquaculture ponds in China: roles of nutrient loading, weather‑related parameters, and management practices","authors":"Ke Rao, Chang Wu, Lu Yang, Minghao Sun, Liang Guo, Dan Wu, Xia Cao, Jing Xu","doi":"10.1007/s10499-025-02241-z","DOIUrl":"10.1007/s10499-025-02241-z","url":null,"abstract":"","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilization of fresh black soldier fly (Hermetia illucens) larvae as alternative feed for whiteleg shrimp (Litopenaeus vannamei) and its effect on water quality 黑兵蝇鲜幼虫替代凡纳滨对虾饵料及其对水质的影响
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-08 DOI: 10.1007/s10499-025-02227-x
Mat Fahrur, Hidayat Suryanto Suwoyo, Kamaruddin Kamaruddin, Rachman Syah, Patang Patang, Ernawati Syahruddin Kaseng, Sahabuddin Sahabuddin, Masrah Masrah
{"title":"Utilization of fresh black soldier fly (Hermetia illucens) larvae as alternative feed for whiteleg shrimp (Litopenaeus vannamei) and its effect on water quality","authors":"Mat Fahrur,&nbsp;Hidayat Suryanto Suwoyo,&nbsp;Kamaruddin Kamaruddin,&nbsp;Rachman Syah,&nbsp;Patang Patang,&nbsp;Ernawati Syahruddin Kaseng,&nbsp;Sahabuddin Sahabuddin,&nbsp;Masrah Masrah","doi":"10.1007/s10499-025-02227-x","DOIUrl":"10.1007/s10499-025-02227-x","url":null,"abstract":"<div><p>The cultivation of white-leg shrimp faces significant challenges related to feed management, particularly the high demand for feed ingredients such as fishmeal. This reliance increases production costs and impacts the environment, especially water quality. To minimize the use of fishmeal and its effect on water quality, fresh black soldier fly (BSF) larvae can be used as direct feed in the cultivation of <i>L. vannamei</i>, which contains complete macro and micro minerals, such as fishmeal. Therefore, it is necessary to experiment on shrimp, examining the response of whiteleg shrimp and its effect on water quality. The trial was carried out using the completely randomized design (CRD) method with 100% PUK feed with the following treatments, including A; 75% PUK: 25% BSF B treatment; 50% PUK: 50% BSF C treatment; 25% PUK: 75% BSF D treatment, and 100% BSF E treatment. The results showed that feed Combination BSF (black soldier fly) and PUK (Commercial Shrimp Pellet) had a significant effect <i>P</i> &lt; 0.05 on absolute growth parameters (AG), specific growth rate (SGR), biomass, feed conversion ratio (FCR), and feed intake ratio (FIR), but not significant effect on the survival rate (SR) and feed efficiency (FE). The utilization of 50% fresh BSF larvae combined with 50% commercial shrimp pellets resulted in a biomass of 98.13 g; SGR 3.83%; survival rate 78.33%, FCR 1.11; FIR 6.19% and FE 80.65% and had no impact on the water quality of vannamei shrimp rearing media.\u0000</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of efficacy of vermicompost application to aquaculture wastewater and its impact on growth performance of Channa striata and Lactuca sativa L. in aquaponics 蚯蚓堆肥对水产养殖废水的处理效果评价及其对水培中彩条鱼和芥蓝生长性能的影响
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-06 DOI: 10.1007/s10499-025-02225-z
Venisza Cathy John, Ajit Kumar Verma, Murtaza Hasan, Hare Krishna, Prativa Sahu, Prem Kumar, Tincy Varghese, Chandrakant Mallikarjun Hittinahalli, Manjulesh Pai
{"title":"Evaluation of efficacy of vermicompost application to aquaculture wastewater and its impact on growth performance of Channa striata and Lactuca sativa L. in aquaponics","authors":"Venisza Cathy John,&nbsp;Ajit Kumar Verma,&nbsp;Murtaza Hasan,&nbsp;Hare Krishna,&nbsp;Prativa Sahu,&nbsp;Prem Kumar,&nbsp;Tincy Varghese,&nbsp;Chandrakant Mallikarjun Hittinahalli,&nbsp;Manjulesh Pai","doi":"10.1007/s10499-025-02225-z","DOIUrl":"10.1007/s10499-025-02225-z","url":null,"abstract":"<div><p>The growth response of <i>Channa striata</i> and <i>Lactuca sativa</i> L. was evaluated in an aquaponics supplemented with vermicompost at five dosages, viz., 14.4, 21.6, 28.8, 36.0, and 43.2 mg/L designated as verm14.4, verm21.6, verm28.8, verm36.0, and verm43.2, respectively. The aquaponics was stocked with <i>Channa striata</i> at 2.24 kg/m<sup>3</sup> (average weight = 6.05 ± 0.06 g) and lettuce at 28 plants/m<sup>2</sup> in nutrient film technique (NFT) hydroponics. The water quality characteristics were within an acceptable range except for higher nitrite in verm36.0 and verm43.2. The fish growth parameters exhibited no significant difference and followed the order: verm21.6 (69.29 ± 1.19 g) &gt; verm28.8 (68.82 ± 1.16 g) &gt; verm36.0 (67.72 ± 1.56 g) &gt;  verm14.4 (66.71 ± 1.32 g) &gt; verm43.2 (66.31 ± 1.54 g). The physiological traits namely serum alanine transaminase (ALT), serum aspartate transaminase (AST), superoxide dismutase (SOD), and catalase (CAT) in the liver were significantly higher in verm43.2, while no significant variation was observed in either SOD or CAT in the gill. Though a higher magnitude of cortisol was recorded in verm36.0 and verm43.2, no significant difference (<i>p</i> &gt; 0.05) was apparent in serum glucose levels in fish. The total lettuce yield followed the order: verm21.6 (819.67 ± 9.22 g) &gt; verm28.8 (796.70 ± 24.61 g) &gt;verm36.0 (730.30 ± 10.22 g) &gt; verm43.2 (702.47 ± 14.06 g) &gt;verm14.4 (697.90 ± 6.10 g), indicating that the higher dosage had no significant output. The nutrient content of lettuce followed a similar trend to plant growth. Based on the two distinct quadratic regression models, the relationships between vermicompost dose with percentage weight gain of fish and lettuce biomass were estimated to be 27.4 and 27.6 mg/L, respectively; hence, 27.5 mg/L is recommended as the best compromise for overall system efficacy.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Algae as a sustainable feed resource: revolutionizing animal nutrition 藻类作为可持续饲料资源:革新动物营养
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-04 DOI: 10.1007/s10499-025-02195-2
Mohsen Kazemi
{"title":"Algae as a sustainable feed resource: revolutionizing animal nutrition","authors":"Mohsen Kazemi","doi":"10.1007/s10499-025-02195-2","DOIUrl":"10.1007/s10499-025-02195-2","url":null,"abstract":"<div><p>Algae, including microalgae and macroalgae, are gaining prominence as a transformative solution for sustainable animal nutrition across ruminant, poultry, and aquaculture systems. Their exceptionally diverse nutritional profile ranges approximately from 5 to 70% protein content (dry matter) across species, such as brown seaweed <i>Ascophyllum nodosum</i> (5–15% protein) and the microalgae <i>Spirulina</i> and <i>Chlorella</i> spp. (50–70% protein). This profile includes essential ω-3 fatty acids (ALA, EPA, DHA), a comprehensive spectrum of vitamins (A, B, C, D, E, K), and valuable bioactive compounds such as astaxanthin, fucoidan, and phycocyanin, which collectively enhance livestock growth performance, immune function, and disease resistance. Remarkably, algae cultivation in non-arable environments such as seawater, brackish water, or wastewater not only reduces pressure on freshwater and fertile land but also contributes to carbon sequestration, offering dual environmental benefits. However, several key challenges including significant nutrient variability between species and cultivation conditions, anti-nutritional factors like polyphenols in some macroalgae, and high production costs associated with harvesting and processing limit large-scale adoption. Despite their potential, these challenges hinder widespread adoption. This comprehensive review summarizes current information on historical use, documented nutritional benefits, and environmental advantages. It then critically assesses these aspects through evidence-based analysis. It also identifies priority future research directions to optimize algae’s integration into animal feed systems, including genetic improvement of algal strains and development of cost-effective cultivation technologies. By bridging these gaps, the review aims to advance algae’s role in fostering an innovative, resilient, and truly sustainable agricultural industry for the future.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
YOLOv11-OPNet: dual-modality framework for fishing vessel detection in complex long-range maritime scenarios YOLOv11-OPNet:用于复杂远程海上场景中渔船探测的双模态框架
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-03 DOI: 10.1007/s10499-025-02216-0
Jian Li, Hong Yu, Rui Shi, Zhibo Cui, Hongjing Dai, Zijian Wu, Yue Wang
{"title":"YOLOv11-OPNet: dual-modality framework for fishing vessel detection in complex long-range maritime scenarios","authors":"Jian Li,&nbsp;Hong Yu,&nbsp;Rui Shi,&nbsp;Zhibo Cui,&nbsp;Hongjing Dai,&nbsp;Zijian Wu,&nbsp;Yue Wang","doi":"10.1007/s10499-025-02216-0","DOIUrl":"10.1007/s10499-025-02216-0","url":null,"abstract":"<div><p>Fishing vessel detection is a crucial technology for fishing vessel monitoring. However, in real aquaculture monitoring, the distant camera viewpoint causes fishing vessels and coastal watchtowers to share similar visual features, while the vessels’ small size and dense spatial distribution further complicate recognition. To solve the aforementioned issues, we propose the YOLOv11-OPNet (YOLOv11-Optical FlowNet) framework for fishing vessel detection. Firstly, with the challenge of low detection accuracy caused by insufficient image information of distant targets, which often leads to confusion with similar objects such as coastal watchtowers and reefs, this study introduces an optical flow modality into the backbone network of YOLOv11. By capturing the dynamic characteristics of fishing vessels through optical flow analysis, the model achieves improved detection accuracy. Furthermore, a cross-modal fusion module—termed LOF (light modality and Optical flow modality fusion module)—is proposed, integrating channel attention with a spatial attention mechanism. This module adaptively filters input features, facilitating effective fusion between optical flow and visible light modalities. Additionally, the PAN-FAN neck architecture of YOLOv11 is enhanced by incorporating an additional P2 layer with higher resolution and embedding the EMA (efficient multi-scale attention) mechanism. These improvements enable more robust multi-scale feature extraction and significantly enhance the semantic representation of small targets. Finally, to optimize the localization performance, Focaler-IoU is employed as the loss function, together with geometric parameter optimization of the bounding boxes, leading to improved detection recall. To evaluate the effectiveness of the proposed approach, comprehensive comparative tests and ablation studies were conducted on a self-constructed dataset of real-world farmed fishing vessels. Experimental results demonstrate that YOLOv11-OPNet achieves mean average accuracy (mAcc), recall (mRec), and precision (mAP) of 87.1%, 82.3%, and 84.0%, respectively. Compared to the baseline YOLOv11 model, these represent improvements of 7.5%, 15%, and 11.6%, respectively. The results confirm that YOLOv11-OPNet is well-suited for detecting fishing vessels in complex real-world aquatic environments characterized by poor image quality.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of commercially available nitrifying and denitrifying bacteria and different carbohydrate sources on the rearing of kuruma shrimp Marsupenaeus japonicus in biofloc systems 市售硝化、反硝化菌及不同碳水化合物源对沼虾在生物群落中养殖的影响
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-03 DOI: 10.1007/s10499-025-02220-4
Fumihiro Yamane, Kenji Toyota, Tsuyoshi Ohira, Naoaki Tsutsui
{"title":"Effect of commercially available nitrifying and denitrifying bacteria and different carbohydrate sources on the rearing of kuruma shrimp Marsupenaeus japonicus in biofloc systems","authors":"Fumihiro Yamane,&nbsp;Kenji Toyota,&nbsp;Tsuyoshi Ohira,&nbsp;Naoaki Tsutsui","doi":"10.1007/s10499-025-02220-4","DOIUrl":"10.1007/s10499-025-02220-4","url":null,"abstract":"<div><p>To investigate the effects of adding commercially available nitrifying and denitrifying bacteria, along with different carbohydrate sources, on rearing water quality, bacterial community, bottom sand ORP values, and growth performance of the kuruma shrimp <i>Marsupenaeus japonicus</i>, we conducted a 70-day rearing experiment in biofloc systems with a carbon/nitrogen ratio of 12. Four treatments were tested: sugar (treatment S) or molasses (treatment M) as a carbohydrate source, and the addition of commercial bacteria to them (treatments SC and MC, respectively). Significant differences (p &lt; 0.05) were observed in the mean final body weight between the treatments with (SC: 3.1 ± 0.4 g, MC: 3.5 ± 0.2 g) and without (S: 2.8 ± 0.1 g, M: 3.0 ± 0.1 g) commercial bacteria. There were also significant differences in mean concentrations of total ammonia, nitrite nitrogen, and nitrate nitrogen. In the bacterial community analysis, Nitrospiraceae were consistently identified with relatively high abundance in the SC and MC, but not in the S and M. The low number of Nitrospiraceae in the S and M may have resulted in high nitrite-nitrogen concentrations, which in turn led to poor feeding and growth stagnation. These findings suggest that nitrifying bacteria play an important role in the biofloc systems with a carbon/nitrogen ratio of 12. Compared to the group using sugar as a carbohydrate source (treatments S and SC), the group using molasses (treatments M and MC) had significantly higher mean survival rates and biomass, and significantly lower food conversion ratio. The difference in carbohydrate source is thought to have affected the bacterial community in the rearing water, with the molasses treatment showing better growth performance, likely due to the predominance of bacteria beneficial to <i>M</i>. <i>japonicus</i>.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to: Boosting hatchery success: effective live feed and microdiet protocols for larval rearing efficiency 修正:提高孵化成功率:有效的活饲料和微饲料方案,提高幼虫饲养效率
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-02 DOI: 10.1007/s10499-025-02221-3
Keshuai Li, Alberto Garcia Lopez, Antonio Villanueva Gonzalez, Mafalda Figueiras, Damián Costas, Pedro Gómez Requeni, Camilo Pohlenz, Joana Amaral, Jose Luis Gonzalez Vecino
{"title":"Correction to: Boosting hatchery success: effective live feed and microdiet protocols for larval rearing efficiency","authors":"Keshuai Li,&nbsp;Alberto Garcia Lopez,&nbsp;Antonio Villanueva Gonzalez,&nbsp;Mafalda Figueiras,&nbsp;Damián Costas,&nbsp;Pedro Gómez Requeni,&nbsp;Camilo Pohlenz,&nbsp;Joana Amaral,&nbsp;Jose Luis Gonzalez Vecino","doi":"10.1007/s10499-025-02221-3","DOIUrl":"10.1007/s10499-025-02221-3","url":null,"abstract":"","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10499-025-02221-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enrichment of nitrifying microbial communities in aquaculture: current trends and prospects 水产养殖中硝化微生物群落的富集:目前的趋势和前景
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-02 DOI: 10.1007/s10499-025-02213-3
Marathippallam Jamal Jifiriya, Prasannan Geetha Preena, Isaac Sarojini Bright Singh, Vattiringal Jayadradhan Rejish Kumar
{"title":"Enrichment of nitrifying microbial communities in aquaculture: current trends and prospects","authors":"Marathippallam Jamal Jifiriya,&nbsp;Prasannan Geetha Preena,&nbsp;Isaac Sarojini Bright Singh,&nbsp;Vattiringal Jayadradhan Rejish Kumar","doi":"10.1007/s10499-025-02213-3","DOIUrl":"10.1007/s10499-025-02213-3","url":null,"abstract":"<div><p>For the successful management of nitrogenous wastes in aquaculture systems, the enrichment of nitrifying bacterial consortia is of utmost importance. The current review offers a comprehensive overview of the recent developments in the nitrifying bacterial enrichment, underlining their crucial role in maintaining water quality and sustainability for successful aquaculture production. A detailed bibliographic research was conducted using the relevant keywords such as “enrichment of nitrifiers,” “ammonia and nitrite oxidisers,” “ammonia oxidizing archaea,” “comammox,” “bioaugmentation,” “immobilization,” and “application in aquaculture systems” in Pubmed, Scopus, SpringerLink, ScienceDirect, and Google Scholar. Scientific literature was collected from the year 1983 to 2025 and the extracted data were sorted out based on the following criterion. The review analyzed the techniques employed for bacterial enrichment, viz. fed-batch and continuous bioreactor-based approaches along with a relative assessment of various enrichment media. Furthermore, strategic operational parameters such as substrate concentration, pH, temperature, salinity, light exposure, and carbon-to-nitrogen (C/N) ratio, that influence the propagation of nitrifiers, were examined. In addition, the review investigates the possible modes of administration of enriched nitrifiers such as bioaugmentation and immobilization approaches, evaluating their suitability in diverse production systems, viz. zero water exchange ponds, recirculating aquaculture systems (RAS), hatcheries, and biofloc-based operations. In spite of the remarkable innovations, substantial knowledge gaps persist in tracking distinctive nitrifiers from diverse environments, standardizing preservation strategies for enriched nitrifiers, unraveling the ecological significance and functional efficacy of anammox, comammox, archaeal, and probiotic nitrifiers, and successfully incorporating these nitrifiers into scalable and robust aquaculture systems. The review also delineates the vital research guidelines intended at resolving these gaps and progressing the integration of nitrifying microbial consortia into future aquaculture practices.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geospatial assessment of site suitability for seaweed cultivation in the Andaman and Nicobar Islands 安达曼和尼科巴群岛海藻养殖地点适宜性的地理空间评价
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-01 DOI: 10.1007/s10499-025-02214-2
Dilip Kumar Jha, M. Savurirajan, Y. Aron Santhosh Kumar, R. Karuna Kumari, D. Shyamla Varthini, N. V. Vinithkumar, G. Dharani, Balaji Ramakrishnan
{"title":"Geospatial assessment of site suitability for seaweed cultivation in the Andaman and Nicobar Islands","authors":"Dilip Kumar Jha,&nbsp;M. Savurirajan,&nbsp;Y. Aron Santhosh Kumar,&nbsp;R. Karuna Kumari,&nbsp;D. Shyamla Varthini,&nbsp;N. V. Vinithkumar,&nbsp;G. Dharani,&nbsp;Balaji Ramakrishnan","doi":"10.1007/s10499-025-02214-2","DOIUrl":"10.1007/s10499-025-02214-2","url":null,"abstract":"<div><p>Geographic Information System (GIS) tools were used to analyze key environmental factors for seaweed cultivation, converting them into thematic layers. The study highlights the ample scope for seaweed farming in the Andaman and Nicobar (A&amp;N) Islands, particularly in its enclosed bays. Of the 600,000 km<sup>2</sup> within India’s Exclusive Economic Zone (EEZ) around the A&amp;N Islands, approximately 122,854 km<sup>2</sup> within the 1–50 m depth contour was assessed. The analysis identified 68,659 km<sup>2</sup> as appropriate for seaweed farming, with 5,363 km<sup>2</sup> classified as highly suitable and 63,296 km<sup>2</sup> as suitable. Commercially valuable seaweed species, such as <i>Gracilaria</i> spp., can be cultivated without disrupting the region’s natural ecosystem. This model also identifies areas that should be avoided, including coral reefs, natural seaweed habitats, national parks, sanctuaries, seagrass beds, and navigation routes. The present work also highlighted the comparison of different seaweed cultivation techniques in the A&amp;N coastal waters. This study utilises a GIS-based multi-criteria approach to integrate key spatial datasets at the macro-level, generating a reliable, simple and useful model output for delineating the potential seaweed farming zones in the A&amp;N Islands.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temporal variability of greenhouse gas fluxes in monoculture of tilapia in ponds 罗非鱼池塘单养温室气体通量的时间变异性
IF 2.4 3区 农林科学
Aquaculture International Pub Date : 2025-09-01 DOI: 10.1007/s10499-025-02223-1
Yi–Jung Chen, Han–Yang Yeh, Chien-Wei Tu, Yu-Ru Lin, Zhen Hao Liao, Wen-Chen Chou, Hsiao-Chun Tseng, Ruei-Feng Shiu, Tzu-Ning Teng, Meng–Chou Lee, Fan–Hua Nan
{"title":"Temporal variability of greenhouse gas fluxes in monoculture of tilapia in ponds","authors":"Yi–Jung Chen,&nbsp;Han–Yang Yeh,&nbsp;Chien-Wei Tu,&nbsp;Yu-Ru Lin,&nbsp;Zhen Hao Liao,&nbsp;Wen-Chen Chou,&nbsp;Hsiao-Chun Tseng,&nbsp;Ruei-Feng Shiu,&nbsp;Tzu-Ning Teng,&nbsp;Meng–Chou Lee,&nbsp;Fan–Hua Nan","doi":"10.1007/s10499-025-02223-1","DOIUrl":"10.1007/s10499-025-02223-1","url":null,"abstract":"<div><p>Aquaculture is a vital industry that provides high-quality nutrition for humans. In 2022, global aquaculture production surpassed that of capture fisheries for the first time, ensuring stable food supplies and promoting sustainable ecological development. However, intensive aquaculture is a notable source of greenhouse gas (GHG) emissions, with many of its emission mechanisms still not fully understood. Tilapia is a key aquaculture species known for its rapid growth, environmental adaptability, high reproductive rate, and tolerance to salinity. This study monitored three brackish water tilapia farming ponds in Xuejia District, Tainan, Taiwan, throughout 2023, measuring the fluxes of carbon dioxide (CO<sub>2</sub>), methane (CH<sub>4</sub>), nitrous oxide (N<sub>2</sub>O), and related environmental parameters monthly during both the non-culture and culture periods. The ponds functioned as minor carbon sinks during the early and late culture periods but became net carbon sources during the main culture period. The average fluxes measured were 1555.59 ± 2349.40 mg m<sup>−2</sup> day<sup>−1</sup> for CO<sub>2</sub>, 3.38 ± 3.36 mg m<sup>−2</sup> day<sup>−1</sup> for CH<sub>4</sub>, and 0.68 ± 0.39 mg m<sup>−2</sup> day<sup>−1</sup> for N<sub>2</sub>O, all calculated based on GWP<sub>100</sub>, all acting as sources to the atmosphere. When transfer to CO<sub>2</sub> equivalent, CO<sub>2</sub> was the dominant emission gas, contributing approximately 78% of total emissions, followed by CH<sub>4</sub> (13%) and N<sub>2</sub>O (9%). The greenhouse gas fluxes showed significant temporal variation, likely driven by microbial and phytoplankton activity influenced by environmental factors such as water temperature, alkalinity, nitrite, and ammonia nitrogen concentrations. This study highlights that tilapia culture can elevate GHG emissions, underscoring the need for improved management strategies to mitigate environmental impacts.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923083","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}
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