{"title":"中国张子岛海域石斑鱼种群的种群动态:对管理和保护的影响","authors":"Keru Niu, Zengqiang Yin, Guojin Xue, Qian Cheng, Chaozhong Xin, Lijuan Han, Yonghu Liu","doi":"10.1155/2024/8547916","DOIUrl":null,"url":null,"abstract":"<div>\n <p><i>Sebastes schlegelii</i> is a species of great economic significance in Zhangzi Island’s waters in the Northern Yellow Sea. Since the beginning of the 21<sup>st</sup> century, there has been a significant decline in the fishery resources of <i>Sebastes schlegelii</i>, and the reduction in size has become increasingly apparent. Therefore, it is imperative to understand the characteristics of <i>Sebastes schlegelii</i> and develop management tactics. Based on biological data from <i>Sebastes schlegelii</i> collected in Zhangzi Island’s waters, an analysis was conducted on the relationship between body length and weight, growth equations were formulated, and an assessment was made of the resources’ status. The study simulated and evaluated the effects of various closed season management strategies on egg production per recruit (EPR) and spawning biomass per recruit (SBR). The results showed the following. (1) The length-weight relationship was <i>W</i> = 5 × 10<sup>−5</sup><i>L</i><sup>2.882</sup>. (2) Von Bertalanffy’s growth equation was <i>L</i><sub><i>t</i></sub> = 450[1 − <i>e</i><sup>−0.31(<i>t</i>+0.42)</sup>] and <i>W</i><sub><i>t</i></sub> = 2215.8[1 − <i>e</i><sup>−0.31(<i>t</i>+0.42)</sup>]<sup>2.882</sup>. (3) The resource is in an overfished state with an exploitation rate (<i>E</i>) of 0.737, a steady-state biomass of 1471 t, and a maximum sustainable yield of 466 t. (4) The closed season for <i>Sebastes schlegelii</i> in Zhangzi Island’s waters is suggested to be from November to February, coinciding with the recovery of the EPR value to 68.33% and the SBR value to 29.53%.</p>\n </div>","PeriodicalId":14894,"journal":{"name":"Journal of Applied Ichthyology","volume":"2024 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/8547916","citationCount":"0","resultStr":"{\"title\":\"Population Dynamics of the Sebastes schlegelii Stock in Zhangzi Island’s Waters, China: Implications for Management and Conservation\",\"authors\":\"Keru Niu, Zengqiang Yin, Guojin Xue, Qian Cheng, Chaozhong Xin, Lijuan Han, Yonghu Liu\",\"doi\":\"10.1155/2024/8547916\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n <p><i>Sebastes schlegelii</i> is a species of great economic significance in Zhangzi Island’s waters in the Northern Yellow Sea. Since the beginning of the 21<sup>st</sup> century, there has been a significant decline in the fishery resources of <i>Sebastes schlegelii</i>, and the reduction in size has become increasingly apparent. Therefore, it is imperative to understand the characteristics of <i>Sebastes schlegelii</i> and develop management tactics. Based on biological data from <i>Sebastes schlegelii</i> collected in Zhangzi Island’s waters, an analysis was conducted on the relationship between body length and weight, growth equations were formulated, and an assessment was made of the resources’ status. The study simulated and evaluated the effects of various closed season management strategies on egg production per recruit (EPR) and spawning biomass per recruit (SBR). The results showed the following. (1) The length-weight relationship was <i>W</i> = 5 × 10<sup>−5</sup><i>L</i><sup>2.882</sup>. (2) Von Bertalanffy’s growth equation was <i>L</i><sub><i>t</i></sub> = 450[1 − <i>e</i><sup>−0.31(<i>t</i>+0.42)</sup>] and <i>W</i><sub><i>t</i></sub> = 2215.8[1 − <i>e</i><sup>−0.31(<i>t</i>+0.42)</sup>]<sup>2.882</sup>. (3) The resource is in an overfished state with an exploitation rate (<i>E</i>) of 0.737, a steady-state biomass of 1471 t, and a maximum sustainable yield of 466 t. (4) The closed season for <i>Sebastes schlegelii</i> in Zhangzi Island’s waters is suggested to be from November to February, coinciding with the recovery of the EPR value to 68.33% and the SBR value to 29.53%.</p>\\n </div>\",\"PeriodicalId\":14894,\"journal\":{\"name\":\"Journal of Applied Ichthyology\",\"volume\":\"2024 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-06-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/8547916\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied Ichthyology\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1155/2024/8547916\",\"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":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1155/2024/8547916","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"FISHERIES","Score":null,"Total":0}
Population Dynamics of the Sebastes schlegelii Stock in Zhangzi Island’s Waters, China: Implications for Management and Conservation
Sebastes schlegelii is a species of great economic significance in Zhangzi Island’s waters in the Northern Yellow Sea. Since the beginning of the 21st century, there has been a significant decline in the fishery resources of Sebastes schlegelii, and the reduction in size has become increasingly apparent. Therefore, it is imperative to understand the characteristics of Sebastes schlegelii and develop management tactics. Based on biological data from Sebastes schlegelii collected in Zhangzi Island’s waters, an analysis was conducted on the relationship between body length and weight, growth equations were formulated, and an assessment was made of the resources’ status. The study simulated and evaluated the effects of various closed season management strategies on egg production per recruit (EPR) and spawning biomass per recruit (SBR). The results showed the following. (1) The length-weight relationship was W = 5 × 10−5L2.882. (2) Von Bertalanffy’s growth equation was Lt = 450[1 − e−0.31(t+0.42)] and Wt = 2215.8[1 − e−0.31(t+0.42)]2.882. (3) The resource is in an overfished state with an exploitation rate (E) of 0.737, a steady-state biomass of 1471 t, and a maximum sustainable yield of 466 t. (4) The closed season for Sebastes schlegelii in Zhangzi Island’s waters is suggested to be from November to February, coinciding with the recovery of the EPR value to 68.33% and the SBR value to 29.53%.
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.