Israeli Journal of Aquaculture - Bamidgeh最新文献

Exploring Multiple Paths to Improve Fishery Financial Performance from a Configuration Perspective: A Study Based on the fsQCA Method 从配置角度探索提高渔业财务绩效的多种途径：基于 fsQCA 方法的研究

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-08-08 DOI: 10.46989/001c.122113

Siyuan Zhang, Shiwei Xu, Xuping Huang, Yiqi Wang

{"title":"Exploring Multiple Paths to Improve Fishery Financial Performance from a Configuration Perspective: A Study Based on the fsQCA Method","authors":"Siyuan Zhang, Shiwei Xu, Xuping Huang, Yiqi Wang","doi":"10.46989/001c.122113","DOIUrl":"https://doi.org/10.46989/001c.122113","url":null,"abstract":"Improving the financial performance of fishery enterprises is an inevitable choice to promote the development of fishery economy. In this paper, 102 observation samples are selected, and the necessary and sufficient conditions for high financial performance of fishery listed companies are analyzed by using collocation perspective and qualitative comparative analysis (QCA). Research has found that the formation of high financial performance is a complex causal relationship with multiple concurrent factors, which is the result of the combined effect of multiple conditions, and the effect of each condition is not equal; Moreover, there is no unique optimal model, and 6 different conditional configurations (paths or models) can achieve the same results. The conclusion of this study is helpful to enriching the research on the factors affecting the financial performance of fishery enterprises from the perspective of system integration, and is of great theoretical and practical significance to reveal the factor combination mode produced by the research tendency of fishery enterprise ’performance.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":"9 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928820","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}

引用次数: 0

Effects of emodin on the physiological responses and antioxidant gene expression of Wuchang bream infected with Aeromonas hydrophila 大黄素对武昌鱼感染嗜水气单胞菌后的生理反应和抗氧化基因表达的影响

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-07-09 DOI: 10.46989/001c.120385

Yuanyuan Zhang, Hong Lu, Han Ke, Hui-zhong Cheng, Yong-an Zhu, Li-ping Song, Hong-yan Tian, Wen-wen Huang

{"title":"Effects of emodin on the physiological responses and antioxidant gene expression of Wuchang bream infected with Aeromonas hydrophila","authors":"Yuanyuan Zhang, Hong Lu, Han Ke, Hui-zhong Cheng, Yong-an Zhu, Li-ping Song, Hong-yan Tian, Wen-wen Huang","doi":"10.46989/001c.120385","DOIUrl":"https://doi.org/10.46989/001c.120385","url":null,"abstract":"This experiment aimed to investigate the effects of emodin on the physiological responses and antioxidant gene expression of Wuchang bream infected with Aeromonas hydrophila. The experimental diets were prepared with supplementing 0, 30, 100 and 150 mg kg−1 emodin to basal (control) diet respectively, and fed to fish with initial weight of 50.4 ± 2.35 g. All ﬁsh were divided into five experimental groups: uninfected fish fed with basal control diet (negative control, NC), infected fish fed with the diet supplemented with 0 (positive control group, PC), 30, 100, and 150 mg kg-1 emodin. The fish were reared for 14 days, sampled at different time points and then analyzed. The results showed that the physiological responses and related antioxidant gene expression of infected Wuchang bream were significantly influenced by the dosage of added emodin and the feeding duration (P < 0.05). Comparing to the positive control group, emodin could inhibit the levels of cortisol (COR), triiodothyronine (T3), and thyroxine (T4) in infected Wuchang bream, with hormone levels reaching equilibrium in the shortest time at 30 and 100 mg kg-1 emodin supplementation. Meanwhile, emodin significantly affected alkaline phosphatase (AKP) activity, glucose (Glu) and triglyceride (TG) contents, and related antioxidant gene expression in infected Wuchang bream (P < 0.05), with the best effect observed at 100 mg kg-1 emodin supplementation in the diet. In conclusion, the supplementation of 100 mg/kg emodin to diet can enhance the resistance of Wuchang bream to A. hydrophila infection via promoting physiological metabolism and antioxidant capacity.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":"98 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141663957","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}

引用次数: 0

The diffusion path and influencing factors of shrimp farming technology 对虾养殖技术的传播路径和影响因素

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-07-07 DOI: 10.46989/001c.120489

Hongtao Jin, Lele Xiang, Fang Chen, Wenjun Zhu

{"title":"The diffusion path and influencing factors of shrimp farming technology","authors":"Hongtao Jin, Lele Xiang, Fang Chen, Wenjun Zhu","doi":"10.46989/001c.120489","DOIUrl":"https://doi.org/10.46989/001c.120489","url":null,"abstract":"Aquatic products have played an increasingly important role in residents’ diets, with improved production capacity and living standards in recent years. Accelerating the organic diffusion of aquaculture technology is an effective way to increase production. Taking the example of South American white shrimp aquaculture, this article combines carbon emissions and aquaculture cost benefits. By using data from South American white shrimp aquaculture in Hebei, Shandong, and Jiangsu Province in China from 2016 to 2021, the article innovatively considers aquaculture cycle carbon emissions as non-expected output, constructs a non-expected SBM-DEA super-efficiency model to evaluate the comprehensive efficiency of two aquaculture technologies, and analyzes the influencing factors of the diffusion of shrimp culture technology through case studies. The research results show that the comprehensive efficiency of factory-based aquaculture technology is generally better than pond-based aquaculture, but carbon emissions are higher in the factory model. The main factors affecting the diffusion of factory-based technology are policy support, social networks, farmers’ own situations, and technological attributes.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":" 98","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141671030","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}

引用次数: 0

Cloning and expression patterns of espl1 gene in loach (Misgurnus anguillicaudatus) during gonad development 泥鳅性腺发育过程中 espl1 基因的克隆和表达模式

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-07-06 DOI: 10.46989/001c.116379

Hanjun Jiang, Qianqian Huang, Xusheng Guo, Jiahui Liu, Dexiang Feng, Xiaojuan Cao

{"title":"Cloning and expression patterns of espl1 gene in loach (Misgurnus anguillicaudatus) during gonad development","authors":"Hanjun Jiang, Qianqian Huang, Xusheng Guo, Jiahui Liu, Dexiang Feng, Xiaojuan Cao","doi":"10.46989/001c.116379","DOIUrl":"https://doi.org/10.46989/001c.116379","url":null,"abstract":"espl1 (extra spindle pole bodies like 1), a cysteine endopeptidase, is a mitotic key player in chromosomal segregation and centriole duplication during mitosis and meiosis. Considering the espl1 gene has not been reported in aquatic organisms, we reported the isolation and expression of the espl1 gene from loach. In this study, the full-length cDNA of espl1 was cloned for the first time in loach. In loach, the full-length cDNA of espl1 consisted of 6948 bp, the open reading frame (ORF) is 6240 bp, and the espl1 gene encodes 2139 amino acids. Moreover, the deduced amino acid sequences of espl1 in loach shared the highest identity with those of Cyprinus carpio (78.39%) and Sinocyclocheilus anshuiensis (78.27%), and the sequence homology among the various separases is confined to the C-terminal region. Furthermore, tissue-specific checking results indicated that the espl1 gene of the loach gene was highly expressed in the ovary and testis, especially in stage Ⅳ oocytes and stage Ⅳ testis by Real-time quantitative PCR (qPCR). Then, whole-mount in situ hybridization analyses revealed the expression of espl1 in the early development of loach. We found that the positive signal of espl1 was observed in the notochord during the early embryo development of loach. Last but not least, when treated with luteinizing hormone-releasing hormone analog (LHRH-A2), the mRNA expression of espl1 was significantly increased in the testes and ovaries. These observations suggest that the espl1 gene had a distinct and important role in the gonads of Loach. This study will be of value for further studies into the function of the espl1 gene in fish.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":" 71","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141672852","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}

引用次数: 0

Characteristics of surface flow field and substrate in the spawning ground of Schizothorax grahami 石斑鱼产卵场的表面流场和底质特征

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-07-02 DOI: 10.46989/001c.120233

Li Xu, Yang Zhou, Weijie Cui, Qun Lu, Jianhu Liu, Cong Duan, Tao He

{"title":"Characteristics of surface flow field and substrate in the spawning ground of Schizothorax grahami","authors":"Li Xu, Yang Zhou, Weijie Cui, Qun Lu, Jianhu Liu, Cong Duan, Tao He","doi":"10.46989/001c.120233","DOIUrl":"https://doi.org/10.46989/001c.120233","url":null,"abstract":"The Spawning ground is a crucial habitat for fish, and the physical characteristics of the habitat are important for fish life history. In this paper, Large-Scale Particle Image Velocimetry (LSPIV) was used to measure the surface flow field and the substrate (particle size and mineral composition) in the spawning ground of Schizothorax grahami. Based on the literature and consideration of experimental feasibility, two spawning grounds in the source of the Chishui River were selected—Erlongqiangbao (located in the mainstream) and Bamaoba (located in the tributary), two and three cross sections of each river section were analyzed respectively. The results show that Erlongqiangbao first flows in the direction of “southeast-northwest” and then “southwest—northeast” after crossing the bridge; the maximum velocity of the reach is 3.374m/s. The size of the substrate is mainly less than 1mm in the upstream section of Erlongqiangbao, both 25-50mm in the middle and downstream, and the substrate type mainly is quartz and calcite; Gushangtian flows in the direction of “southwest-northeast,” the maximum velocity of the reach is 1.537m/s, the size of the substrate is mainly greater than 50mm in the upstream, and 25-50mm in the middle and downstream, the substrate type mainly is quartz, calcite, and dolomite. The mineral compositions of the two spawning sites were analyzed by principal component analysis. Quartz and anorthose are more than 1 in composite scores, respectively ranked first and second, indicating that they play a dominant role in the mineral composition. This study could provide basic data and ideas for restoring S. grahami spawning ground.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":"19 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141685029","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}

引用次数: 0

Behavioral characteristics and transcriptome analysis of Mizuhopecten yessoensis in response to Neptunea arthritica cumingii predation during laboratory bottom-sowing culture Mizuhopecten yessoensis 在实验室底播养殖过程中应对 Neptunea arthritica cumingii 捕食的行为特征和转录组分析

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-06-14 DOI: 10.46989/001c.117407

Yang Liu, Danyang Li, Ying Tian, Junxia Mao, Xubo Wang, Zhenlin Hao

{"title":"Behavioral characteristics and transcriptome analysis of Mizuhopecten yessoensis in response to Neptunea arthritica cumingii predation during laboratory bottom-sowing culture","authors":"Yang Liu, Danyang Li, Ying Tian, Junxia Mao, Xubo Wang, Zhenlin Hao","doi":"10.46989/001c.117407","DOIUrl":"https://doi.org/10.46989/001c.117407","url":null,"abstract":"In this study, we investigated the effects of predation by the whelk Neptunea arthritica cumingii on the culture and survival of scallops (Mizuhopecten yessoensis) during bottom culture. The behavioral characteristics of three sizes (small, medium, and large) of scallops were assessed in response to exposure to N. cumingii. We also measured the activities of superoxide dismutase, catalase, arginine kinase, and octopine dehydrogenase in the gill, adductor muscle, and mantle tissues of scallops before and after exposure to predation. We found that scallops escaped from N. cumingii predation by continuous shell closure or movement. The shell closure force increased with the scallop size, and scallops of the same size that were stimulated by the presence of N. cumingii closed their shells more frequently than control scallops. The shell closure ability of scallops of all sizes decreased as the duration of the experiment continued. The enzyme activities in the three scallop tissues changed significantly after continuous stimulation, and the trend was particularly obvious for the enzyme activities in the adductor muscles of medium-sized scallops. Transcriptome analysis of the adductor muscles from medium-sized scallops detected 405 differentially expressed genes (172 upregulated and 233 downregulated), where the expression levels of RYK, APC, BAMBI, WNT16, CACYBP, and RUVBL1 changed after stimulation by N. cumingii. The sequencing results were verified by quantitative real-time PCR. We hypothesize these genes may be related to muscle movement and regulation in M. yessoensis after stimulation.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":"17 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141342064","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}

引用次数: 0

Isolation of Lactobacillus plantarum CMT1 from shrimp intestine and its effects on growth and survival of the whiteleg shrimp, Litopeneaus vannamei 从对虾肠道中分离植物乳杆菌 CMT1 及其对南美白对虾生长和存活的影响

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-06-14 DOI: 10.46989/001c.117555

Thi Cam Tu Phan, Thi Thu Nguyen, Thi Kim Lien Nguyen, Truong Giang Huynh, Thi Thanh Hien Tran

{"title":"Isolation of Lactobacillus plantarum CMT1 from shrimp intestine and its effects on growth and survival of the whiteleg shrimp, Litopeneaus vannamei","authors":"Thi Cam Tu Phan, Thi Thu Nguyen, Thi Kim Lien Nguyen, Truong Giang Huynh, Thi Thanh Hien Tran","doi":"10.46989/001c.117555","DOIUrl":"https://doi.org/10.46989/001c.117555","url":null,"abstract":"Probiotics are widely applied in aquaculture, which can improve the growth, survival and health of aquatic animals. The aim of this study was to isolate and evaluate a Lactobacillus strain from the intestine of healthy whiteleg shrimp, Litopenaeus vannamei. A total of 20 Lactobacillus isolates showed rod-shaped morphology, gram-positive, non-motile, non-spore forming, and catalase and oxidase negative. Among the isolates, strain CMT1 exhibited the highest antibacterial activity against Vibrio parahaemolyticus and extracellular enzyme activity, which was selected and identified as Lactobacillus plantarum CMT1 based on 16S rDNA gene sequencing. This strain was also chosen to evaluate its effects on growth and survival of the whiteleg shrimp as a feed supplement. Four different diets were prepared, including the control (a commercial diet without L. plantarum CMT1) and three different concentrations of L. plantarum CMT1, viz. T1 (106 CFU kg diet-1), T2 (107 CFU kg diet-1), and T3 (108 CFU kg diet-1). After a 56-day feeding trial, the growth parameters in the T3 group had the highest values and showed a significant difference compared to the other groups. The survival rates of shrimp fed T2 and T3 diets were significantly higher than those in the control diet (p < 0.05). The lowest FCR value was recorded in the T3 group and showed a significant difference compared to the control group (p < 0.05). In addition, Lactobacillus counts in T2 and T3 groups increased significantly from day 28, which indicated that L. plantarum CMT1 could sustain its population in the intestine of shrimp. However, the total Vibrio sp. count in the T2 and T3 groups was significantly lower than that in the control group (p < 0.05). In conclusion, L. plantarum CMT1 could be used as a potential probiotic for shrimp aquaculture, and the recommended level of the probiotic strain CMT1 is 108 CFU kg diet-1.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":"74 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141338195","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}

引用次数: 0

Improved breeding and seed production of climbing perch (Anabas testudineus) in controlled tanks and cage systems 在控制水箱和笼养系统中改进攀缘鲈（Anabas testudineus）的繁殖和种子生产

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-05-23 DOI: 10.46989/001c.116472

C. Choresca, Princess P. Taberna, Fiona L. Pedroso, Faith Loraine T. Magbanua, M. T. T. Oclos, M. J. C. Danting

{"title":"Improved breeding and seed production of climbing perch (Anabas testudineus) in controlled tanks and cage systems","authors":"C. Choresca, Princess P. Taberna, Fiona L. Pedroso, Faith Loraine T. Magbanua, M. T. T. Oclos, M. J. C. Danting","doi":"10.46989/001c.116472","DOIUrl":"https://doi.org/10.46989/001c.116472","url":null,"abstract":"The climbing perch (Anabas testudineus) is a valuable fish species with significant potential for aquaculture. However, a low survival rate was observed at its early development stages, requiring an optimized protocol for sustainable aquaculture production. This paper presents an improved breeding and seed production technology for climbing perch. Mature climbing perch were induced to spawn using salmon gonadotropin-releasing hormone analog (sGnRHa) at a dose of 30 µg/kg-1 body weight of the breeder. The female broodfish spawn 9–10 hours after hormone injection. Developmental stages were defined based on the morphological features of the embryos from the first cleavage to the hatching stage. The first cleavage began at approximately 18–20 minutes after fertilization. Newly hatched larvae were observed within 18–20 h at 30°C, having an average larval size of 0.389±0.042 mm (total length). Successful breeding entails a selection of suitable algal species, an optimal aquaculture environment, regular feeding rates, consistent monitoring of larval development, and effective management of water quality. Survival rates from the larval stage to fry were achieved at 84.69% and 77.60%, respectively, while the survival rate to the fingerlings stage was 72.51%. Therefore, by implementing an optimized protocol, aquaculture practitioners can maximize the production potential of climbing perch while ensuring sustainable cultivation practices. The findings from this research contribute to the advancement of climbing perch aquaculture by providing valuable insights for the successful cultivation and increased economic profitability of A. testudineus species in hatchery productions.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":"31 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141103888","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}

引用次数: 0

A First Look at Genetic Diversity of Metapenaeus ensis Populations in Tam Giang – Cau Hai Lagoon, Vietnam 越南 Tam Giang - Cau Hai 泻湖水蚤种群遗传多样性初探

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-05-17 DOI: 10.46989/001c.117579

Nguyen Xuan Huy, Nguyen Ty, Tran Van Giang, Tran Vinh Phuong

引用次数: 0

Cercariae from snails in rice fields and canal supplying water directly to Trichopodus microlepis fish cultured in earthen ponds in Binh Chanh district, Ho Chi Minh City, Vietnam. 越南胡志明市 Binh Chanh 县稻田和水渠中直接供应给土塘养殖的 Trichopodus microlepis 鱼的田螺中的蛔虫。

Israeli Journal of Aquaculture - Bamidgeh Pub Date : 2024-05-16 DOI: 10.46989/001c.117344

P. C. Thien, Ho T. Manh, Duong T. Quyen, Nguyen T.L. Xuan, Nguyen T. Lan, Nguyen M. Hung

{"title":"Cercariae from snails in rice fields and canal supplying water directly to Trichopodus microlepis fish cultured in earthen ponds in Binh Chanh district, Ho Chi Minh City, Vietnam.","authors":"P. C. Thien, Ho T. Manh, Duong T. Quyen, Nguyen T.L. Xuan, Nguyen T. Lan, Nguyen M. Hung","doi":"10.46989/001c.117344","DOIUrl":"https://doi.org/10.46989/001c.117344","url":null,"abstract":"Snails are the first intermediate host in the life cycle of trematodes. Previous research found that Trichopodus microlepis fish, cultured in earthen ponds in Tan Nhut Commune, Binh Chanh District, Ho Chi Minh City, Vietnam had a high infection rate with metacercariae of Centrocestus formosanus and Procevorum sp. It is necessary to investigate whether habitats supplying water to the ponds may contribute to the transmission by carrying intermediate hosts and/or cercariae into these ponds or not. A study of cercariae and snail composition in rice fields and canal supplying water directly to these Trichopodus microlepis ponds was carried out with six samplings in the years 2022 and 2023. A total of 1,151 snails were collected, and nine snail species belonging to 8 genera and 6 families were identified. Three snail species in both rice fields and canal were infected with trematode (cercariae stage) including Bithynia siamensis, Lymnaea viridis and Indoplanorbis exustus. The overall prevalence in the dry season (25.9%) was significantly higher than in the wet season (10.6%) (P<0.05). Three cercariae morphotypes were recovered from snails: xiphidio (in all three snails), echinostome (in Lymnaea viridis and Indoplanorbis exustus), and pleurolophocercous in Bithynia siamensis. This finding shows that Bithynia siamensis is one of the infected sources for Trichopodus microlepis fish cultured in ponds, as pleurolophocercous is also the cercariae in the family of Heterophyidae (including Centrocestus formosanus and Procevorum sp.). Further research should be done to clarify the transmission of fish-borne zoonotic diseases to cultured Trichopodus microlepis in other habitats including the actual fishponds, and sources of trematodes in order to produce Trichopodus microlepis free of metacercariae, contributing to clean aquaculture development and safe food for local people in the area.","PeriodicalId":506439,"journal":{"name":"Israeli Journal of Aquaculture - Bamidgeh","volume":"40 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140969726","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}

引用次数: 0