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

IF 0.7 4区 农林科学 Q4 FISHERIES Journal of Applied Ichthyology Pub Date : 2024-06-28 DOI:10.1155/2024/8547916
Keru Niu, Zengqiang Yin, Guojin Xue, Qian Cheng, Chaozhong Xin, Lijuan Han, Yonghu Liu
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摘要

鲐鱼是北黄海獐子岛海域具有重要经济价值的鱼种。进入 21 世纪以来,五棘鲷的渔业资源明显减少,规格缩小也日益明显。因此,了解五棘鲷的特性并制定管理策略势在必行。根据在獐子岛海域采集到的五棘鲷生物数据,分析了体长与体重的关系,制定了生长方程,并对资源状况进行了评估。该研究模拟并评估了各种禁渔期管理策略对每尾新鱼产卵量(EPR)和每尾新鱼产卵生物量(SBR)的影响。结果显示如下(1) 长度-重量关系为 W = 5 × 10-5L2.882.(2) 冯-贝塔朗菲生长方程为 Lt = 450[1 - e-0.31(t+0.42)] 和 Wt = 2215.8[1 - e-0.31(t+0.42)]2.882。(3)资源处于过度捕捞状态,开发率(E)为 0.737,稳态生物量为 1471 吨,最大持续产量为 466 吨。(4) 建议獐子岛海域的石斑鱼禁渔期为 11 月至次年 2 月,与 EPR 值恢复到 68.33% 和 SBR 值恢复到 29.53% 相吻合。
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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%.

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来源期刊
Journal of Applied Ichthyology
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
73
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.
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