王佳琦,刘淑德,唐衍力,杨文昭,方光杰

• 1:中国海洋大学水产学院
• 2:山东省水生生物资源养护管理中心

摘要(Abstract)：

为研究人工鱼礁区大泷六线鱼(Hexagrammos otakii)生长、死亡和资源利用,本文根据2012—2015年山东俚岛人工鱼礁区与对照区的地笼与三重刺网调查资料,运用ELEFAN I基于体长频率时间序列分析法、变换体长渔获曲线法、单位补充量等渔获量曲线法和生物学参考点等对其群体结构、生长、死亡、资源现状和资源管理进行初步研究,再运用蒙特卡洛模拟法将不确定性分析引入资源评估。研究表明鱼礁区大泷六线鱼平均体长、平均体重、渐近体长和渐进体重均大于对照区,自然死亡系数小于对照区,即鱼礁区大泷六线鱼个体较大、人工鱼礁对大泷六线鱼确有保护作用。本文首次将生物学参考点F0.1和Fmax及其不确定性分析应用于人工鱼礁区大泷六线鱼资源评估,结果表明3种不确定性水平下F0.1判断结果与无不确定性结果一致(F0.1Fcur),即存在误判的风险,故F0.1更适合礁区大泷六线鱼资源评估。结合Gulland理论、生物学参考点和单位补充量渔获量等判断,鱼礁区大泷六线鱼资源处于过度开发状态,应适当降低捕捞强度以保证其持续发展,对照区其资源处于合理开发状态,仍可通过提高捕捞强度来实现资源更为合理地利用。

关键词(KeyWords)： 人工鱼礁;大泷六线鱼;资源现状;生物学参考点;不确定性;俚岛

Abstract:

Keywords:

基金项目(Foundation): 山东省海洋与渔业科技创新项目(2017HYCX007);; 山东省海洋与渔业厅“人工鱼礁区渔业资源调查”项目资助~~

作者(Author): 王佳琦,刘淑德,唐衍力,杨文昭,方光杰

DOI: 10.16441/j.cnki.hdxb.20170407

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