基于体长标准的大长山人工鱼礁区许氏平鮋资源评估  

Evaluation of Sebastes schlegelii resources in Dachangshan artificial reef area based on body length standard

作　　者：薛国进 尹增强[1] 程前[1] 魏艺鸣 李九奇[1] XUE Guo-jin;YIN Zeng-qiang;CHENG Qian;WEI Yi-ming;LI Jiu-qi(Dalian Ocean University,Dalian,11023,china)

机构地区：[1]大连海洋大学

出　　处：《河北渔业》2020年第1期24-28,共5页

基　　金：国家海洋公益性行业科研专项(201205023);国家科技支撑计划项目(2012BAD18B02,2015BAD13B05)

摘　　要：为了评价大长山人工鱼礁区许氏平鮋(Sebastes schlegelii)资源利用状态,为当地许氏平鮋资源的合理开发与管理提供科学依据,采用基于体长的贝叶斯评估方法(LBB)对2011-2015年大长山人工鱼礁区许氏平鮋资源进行了评估。研究结果表明大长山人工鱼礁区许氏平鮋最优体长Lopt为31cm,最佳开捕体长Lc-opt为28cm,平均M/K=1.5、F/K=4.82、Z/K=6.34、F/M=3.24,许氏平鮋最优现存资源量与原始资源量之比B/B0(F=M,Lc=Lc-opt)=0.366、实际年平均B/B0=0.038 6,许氏平鮋最优的单位补充量渔获量Y/R’(F=M,Lc=Lc-opt)=0.045 9kg,实际年平均Y/R’=0.003 44kg。In order to evaluate the utilization state of Sebastes schlegelii resources in the artificial reef area of Dachangshan and provide scientific basis for the reasonable development and management of Sebastes schlegelii resources,this paper adopts the bayesian evaluation method(LBB)based on body length to evaluate resources in the artificial reef area of Dachangshan from 2011 to 2015.Research results show that the Dachangshan artificial reef area for the Sebastes schlegelii opti­mal length Lopt to 31 cm.the best length Lc-opt for 28 cnifan average of M/K=1.5,F/K=4.82.Z/K=6,34,F/M=3.24,the Sebastes schlegelii optimal existing resources and the ratio of the amount of o-riginal B/B0(F=M,Lc=Lc-opt)=0.366,the actual average annual B/B0=0.0386,the optimal unit for the Sebastes schlegelii transshipment catches Y/R(F=M,Lc=Lc-opt)=0.0459 kg.Actual annu­al average Y/R=0.00344 kg.

关 键 词：大长山 许氏平鮋(Sebastes schlegelii) 体长分布 资源评估 LBB 

分 类 号：S932.4[农业科学—渔业资源]