孟加拉国梅克纳河河口四种受威胁鲶鱼的长重关系及条件因子

IF 0.7 4区农林科学 Q4 FISHERIES

Journal of Applied Ichthyology Pub Date : 2023-10-14 DOI:10.1155/2023/6651843

Jannatul Ferdous Jerin, Shanaz Akther, Joyoti Debnath, Debasish Saha

{"title":"孟加拉国梅克纳河河口四种受威胁鲶鱼的长重关系及条件因子","authors":"Jannatul Ferdous Jerin, Shanaz Akther, Joyoti Debnath, Debasish Saha","doi":"10.1155/2023/6651843","DOIUrl":null,"url":null,"abstract":"The current study examined the length-weight relationships (LWRs), length-length relationships (LLRs), and condition factor (K) of four threatened riverine catfish species (Pangasius pangasius, Rita rita, Sperata aor, and Bagarius bagarius) sampled from the Meghna River Estuary (MRE), Bangladesh. A total of 578 individuals were collected from contracted fishermen between January and October 2022. The length and weight of each species exhibited a highly positive correlation. The regression coefficient was 2.24 for P. pangasius, 2.90 for R. rita, 2.91 for S. aor, and 3.25 for B. bagarius. Furthermore, all species demonstrated a highly positive correlation between total length and standard length (r > 0.90). The calculated condition factor (K) values were 0.87 for P. pangasius, 1.18 for R. rita, 0.66 for S. aor, and 0.99 for B. bagarius indicating variations among the species. This study provides the first comprehensive documentation of all four major catfish species found in the MRE.","PeriodicalId":14894,"journal":{"name":"Journal of Applied Ichthyology","volume":"529 1","pages":"0"},"PeriodicalIF":0.7000,"publicationDate":"2023-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Length-Weight Relationships and Condition Factor of Four Threatened Riverine Catfish Species in the Meghna River Estuary, Bangladesh\",\"authors\":\"Jannatul Ferdous Jerin, Shanaz Akther, Joyoti Debnath, Debasish Saha\",\"doi\":\"10.1155/2023/6651843\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The current study examined the length-weight relationships (LWRs), length-length relationships (LLRs), and condition factor (K) of four threatened riverine catfish species (Pangasius pangasius, Rita rita, Sperata aor, and Bagarius bagarius) sampled from the Meghna River Estuary (MRE), Bangladesh. A total of 578 individuals were collected from contracted fishermen between January and October 2022. The length and weight of each species exhibited a highly positive correlation. The regression coefficient was 2.24 for P. pangasius, 2.90 for R. rita, 2.91 for S. aor, and 3.25 for B. bagarius. Furthermore, all species demonstrated a highly positive correlation between total length and standard length (r > 0.90). The calculated condition factor (K) values were 0.87 for P. pangasius, 1.18 for R. rita, 0.66 for S. aor, and 0.99 for B. bagarius indicating variations among the species. This study provides the first comprehensive documentation of all four major catfish species found in the MRE.\",\"PeriodicalId\":14894,\"journal\":{\"name\":\"Journal of Applied Ichthyology\",\"volume\":\"529 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2023-10-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied Ichthyology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1155/2023/6651843\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Ichthyology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1155/2023/6651843","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"FISHERIES","Score":null,"Total":0}

引用次数: 0

摘要

本研究对孟加拉国梅克纳河河口(MRE) 4种濒危河流鲶鱼(Pangasius Pangasius、Rita Rita、Sperata aor和Bagarius Bagarius)的长度-重量关系(LWRs)、长度-长度关系(LLRs)和条件因子(K)进行了研究。在2022年1月至10月期间，共从签约渔民中收集了578人。各种属的长度和重量呈高度正相关。巴沙棘的回归系数分别为2.24、2.90、2.91和3.25。此外，所有物种的总长度与标准长度(r >0.90)。计算得到的条件因子(K)值分别为:巴沙鱼0.87、白僵鱼1.18、白僵鱼0.66、白僵鱼0.99。这项研究首次全面记录了MRE中发现的所有四种主要鲶鱼。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Length-Weight Relationships and Condition Factor of Four Threatened Riverine Catfish Species in the Meghna River Estuary, Bangladesh

The current study examined the length-weight relationships (LWRs), length-length relationships (LLRs), and condition factor (K) of four threatened riverine catfish species (Pangasius pangasius, Rita rita, Sperata aor, and Bagarius bagarius) sampled from the Meghna River Estuary (MRE), Bangladesh. A total of 578 individuals were collected from contracted fishermen between January and October 2022. The length and weight of each species exhibited a highly positive correlation. The regression coefficient was 2.24 for P. pangasius, 2.90 for R. rita, 2.91 for S. aor, and 3.25 for B. bagarius. Furthermore, all species demonstrated a highly positive correlation between total length and standard length (r > 0.90). The calculated condition factor (K) values were 0.87 for P. pangasius, 1.18 for R. rita, 0.66 for S. aor, and 0.99 for B. bagarius indicating variations among the species. This study provides the first comprehensive documentation of all four major catfish species found in the MRE.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Applied Ichthyology 生物-海洋与淡水生物学

CiteScore

2.30

自引率

11.10%

发文量

审稿时长

3-8 weeks

期刊介绍： The Journal of Applied Ichthyology publishes articles of international repute on ichthyology, aquaculture, and marine fisheries; ichthyopathology and ichthyoimmunology; environmental toxicology using fishes as test organisms; basic research on fishery management; and aspects of integrated coastal zone management in relation to fisheries and aquaculture. Emphasis is placed on the application of scientific research findings, while special consideration is given to ichthyological problems occurring in developing countries. Article formats include original articles, review articles, short communications and technical reports.