秘鲁外海茎柔鱼索饵场栖息地研究  

Feeding Habitat of Jumbo Flying Squid Dosidicus gigas off the Coast of Peru

作　　者：刘必林[1,2,3,4,5] 陈新军 田思泉[1,2,3,4,5] LIU Bilin;CHEN Xinjun;TIAN Siquan(College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;National Engineering Research Center for Oceanic Fisheries,Shanghai 201306,China;The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai 201306,China;Key Laboratory of Oceanic Fisheries Exploration,Ministry of Agriculture and Rural Affairs,Shanghai 201306,China;Scientific Observing and Experimental Station of Oceanic Fishery Resources,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]国家远洋渔业工程技术研究中心,上海201306 [3]大洋渔业资源可持续教育部重点实验室,上海201306 [4]农业农村部大洋渔业开发重点实验室,上海201306 [5]农业农村部大洋渔业资源环境科学观测实验站,上海201306

出　　处：《水产科学》2023年第3期480-487,共8页Fisheries Science

基　　金：国家重点研发计划项目(2019YFD0901404);国家自然科学基金面上项目(NSFC41876141);上海市高校特聘教授“东方学者”岗位计划项目(0810000243)。

摘　　要：两步广义加性模型被广泛应用于渔业资源栖息地的分析与研究中。笔者根据2006—2010年秘鲁外海茎柔鱼鱿钓生产数据以及海洋环境数据,利用两步广义加性模型分析环境因子对秘鲁茎柔鱼资源丰度的影响,预测秘鲁茎柔鱼索饵场栖息地分布。研究结果显示:春季,仅纬度对单位捕捞努力量渔获量的影响显著(P<0.01);夏季,纬度和海表面温度对单位捕捞努力量渔获量影响显著(P<0.01);秋季,海表面温度和海表面高度对单位捕捞努力量渔获量的影响显著(P<0.01);冬季,纬度和海表面高度对单位捕捞努力量渔获量的影响显著(P<0.01);叶绿素a对各季节资源分布的影响不显著(P>0.01)。根据单位捕捞努力量渔获量与海洋环境的关系,推测春季茎柔鱼索饵场位于S15°,W77°附近海域,夏季位于S24°~26°,W75°~78°海域,秋季位于秘鲁沿岸S12°~16°和智利中部S28°附近海域,冬季位于秘鲁沿岸S13°~18°海域。研究结果可为指导我国远洋鱿钓鱼船在秘鲁海域的作业生产提供基础资料。Recently,two-stage generalized additive models(GAMs)have been considered as most accurate and effective model to investigate fishery resources habitat.In this study,we used this model to analyze the influence of environment factors on resources abundance and predicted distribution of feeding habitat of jumbo flying squid Dosidicus gigas off Peru,based on squid jigging production and environmental data.The results of two-stage GAMs showed that catch per unit of effort(CPUE)was only significantly influenced by latitude in spring,by latitude and sea surface temperature in summer,by sea surface temperature and sea surface height in autumn and by latitude and sea surface height in winter,while slightly influenced by chlorophyll a in the four seasons.Hypothesized feeding grounds were S 15°,W 77°in spring,S 24°-26°,W 75°-78°in summer,S 12°-16°off Peru and S 28°off the central Chile in autumn,and S 13°-18°in winter off Peru.The finding will provide basic information for the jigging fishery in the study area.

关 键 词：两步广义加性模型 栖息地 茎柔鱼 环境因子 东南太平洋 

分 类 号：S934[农业科学—渔业资源]