基于产卵场海表面温度的太平洋褶柔鱼冬生群资源评估  

Stock assessment of winter-spawning cohort for Todarodes pacificus based on the sea surface temperature in the spawning ground

作　　者：鲁红月 汪金涛[1,2,3,4] 张畅 LU Hongyue;WANG Jintao;ZHANG Chang(College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai 201306,China;National Engineering Research Center for Oceanic Fisheries,Shanghai 201306,China;Key Laboratory of Oceanic Fisheries Exploration,Ministry of Agriculture and Rural Affairs,Shanghai 201306,China)

机构地区：[1]上海海洋大学海洋科学学院,上海201306 [2]大洋渔业资源可持续开发教育部重点实验室,上海201306 [3]国家远洋渔业工程技术研究中心,上海201306 [4]农业农村部大洋渔业开发重点实验室,上海201306

出　　处：《上海海洋大学学报》2022年第3期650-657,共8页Journal of Shanghai Ocean University

基　　金：国家重点研发计划(2019YFD0901404);国家自然科学基金(41876141);上海市科技创新行动计划(10DZ1207500)。

摘　　要：太平洋褶柔鱼(Todarodes pacificus)是重要的大洋性经济头足类资源,其资源变动极易受海洋环境的影响。将影响太平洋褶柔鱼种群变动的内禀自然增长率(intrinsic natural growth rate,r)、最大环境容纳量(carrying capacity,K)与海表面温度(sea surface temperature,SST)结合起来,分别构建4种剩余产量模型(模型1、模型2、模型3、模型4),研究SST影响下的太平洋褶柔鱼种群资源变动情况。结果表明,其中加入环境因子的3种资源评估模型(模型2、模型3、模型4)的偏差信息准则(DIC)的值均小于传统的剩余产量模型(模型1)的DIC值,且以模型4的DIC值最小(132.6),表明该模型评估效果较好。研究认为,2007—2018年,太平洋褶柔鱼的捕捞死亡率F_(MSY)普遍低于最大可持续产量(maximum sustainable yield,MSY)水平的捕捞死亡率F_(MSY),其捕捞产量普遍低于最大可持续产量MSY。目前太平洋褶柔鱼冬生种群资源状况受环境影响较大,建议有必要留意因捕捞压力和环境压力造成的资源量减少趋势,确保该资源的可持续利用。Todarodes pacificus is a commercially important oceanic cephalopod resource,and its resource changes are vulnerable to the impact of the marine environment.In this study,the intrinsic natural growth rate(r)and the maximum environmental capacity(K)of the fluctuation parameters of the Todarodes pacificus population were combined with the sea surface temperature(SST)to construct four surplus production models respectively,which evaluated the changes in Todarodes pacificus population resources under the influence of SST.The research results showed that the resource evaluation model(model 2,model 3,and model 4)with environmental factors added to the four surplus production models had a deviation information criterion(DIC)value smaller than that of the traditional residual production model(model 1).The DIC value of the model 4 was the smallest(132.6),indicating that the model had the highest accuracy.According to the best model assessment,the fishing mortality F_(MSY)of Todarodes pacificus from 2007 to 2018 was lower than F_(MSY).When MSY was 41.28×10^(4)t,B;reached 49.66×10^(4)4t,and there was a phenomenon of resource-based overfishing,but resources were gradually recovering.Studies have shown that the resource status of the winter population of Todarodes pacificus is greatly affected by the environment,so it is necessary to seriously consider the impact of environmental factors such as SST in future resource development and scientific management.

关 键 词：太平洋褶柔鱼 海表面温度 剩余产量模型 资源评估 

分 类 号：S931.3[农业科学—渔业资源]