中太平洋金枪鱼围网渔场空间分布研究
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- 英文论文题名：Study on spatial distribution of fishing ground for tuna purse seine fishery in the central Pacific ocean
- 论文作者：陈洋洋 ; 陈新军 ; 汪金涛 ; 雷林
- 英文论文作者：Chen Yangyang ; Chen Xinjun ; Lei Lin ; Wang Jintao ; College of Marine Sciences of Shanghai Ocean University ; Collaborative Innovation Center for Distant-water Fisheries ; The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources ; Shanghai Ocean University ; Ministry of Education ; National Engineering Research Center for oceanic Fisheries ; Shanghai Ocean University ; Shanghai Fisheries Company
- 年：2016
- 作者机构：上海海洋大学海洋科学学院;远洋渔业协同创新中心;大洋渔业资源可持续开发省部共建教育部重点实验室;国家远洋渔业工程技术研究中心;上海水产集团总公司;
- 论文关键词：中太平洋 ; 鲣鱼 ; 围网渔场 ; 空间分布
- 英文论文关键词：central Pacific Ocean ; Skipjack ; Purse Seine fisheries ; Spatial distribution
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S931.4
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：527k
- 原文格式：D
- 会议级别：全国
摘要
中太平洋是金枪鱼围网的重要作业海域,掌握其渔场时空分布规律对科学指导渔业生产有着重要的意义。本研究利用1995-2010年中太平洋海域金枪鱼围网生产统计资料数据,以每5个纬度为一个海区,将15°S-15°N范围海域分为六个海区,并以投网次数所占比重、捕捞产量所占比重及其相应的平均网次产量(CPUE)为表征渔场的指标,分析中心渔场分布及其变化规律。研究结果表明,中心渔场在0°-5°N和0°-5°S海域的作业网次分别占总数的50.01%和36.16%;渔场在0°-5°S和0°-5°N海域的捕捞产量分别占总数的44.22%和39.34%;而CPUE不适合作为表征中心渔场的指标。作业网次和捕捞产量比重均在3%以上的海域有:0°-5°N、130°E-135°E;0°-5°N、135°E-140°E;0°-5°S、155°E-160°E;0°-5°S、145°E-150°E等4个海区,累计分别占总数的36.65%和22.90%,中心渔场空间分布较为广阔。整体的渔获量中,自由鱼群和流木鱼群的比例约为4:6。研究认为,应加强对中太平洋金枪鱼围网中心渔场空间分布及其与海洋环境、厄尔尼诺等关系规律的把握,提升寻找中心渔场的准确性,同时减少捕捞流木鱼群。
The central Pacific water is an important fishing area for tuna purse seine fishing and grasping the spatial distribution of fish ground will provide a guide for fisheries production. In this study, based on the tuna catch data in the central Pacific water from 1995 to 201, six fishing areas are set up according to the latitude 15 °S- 15 ° N, and the percentage of fishing net, the percentage of fishing catch, and corresponding average catch per fishing net(CPUE) in every five longitude are considered as the indicator of studying fishing ground, which aim to analyze distribution of center fishing ground and its changing law. The results indicated that the center fishing ground is distributed in the waters of 0 °-5 ° N and 0 °-5 ° S based on the fishing net data,which occupied 50.01% and 36.16% of the total fishing nets, respectively.
The central Pacific water is an important fishing area for tuna purse seine fishing and grasping the spatial distribution of fish ground will provide a guide for fisheries production. In this study, based on the tuna catch data in the central Pacific water from 1995 to 201, six fishing areas are set up according to the latitude 15 °S- 15 ° N, and the percentage of fishing net, the percentage of fishing catch, and corresponding average catch per fishing net(CPUE) in every five longitude are considered as the indicator of studying fishing ground, which aim to analyze distribution of center fishing ground and its changing law. The results indicated that the center fishing ground is distributed in the waters of 0 °-5 ° N and 0 °-5 ° S based on the fishing net data,which occupied 50.01% and 36.16% of the total fishing nets, respectively.
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