灯光罩网渔船兼作金枪鱼延绳钓捕捞试验

2015年3月-4月利用＂粤电渔42212＂灯光罩网渔船在南沙北部海域开展了金枪鱼延绳钓捕捞试验。延绳钓试验以不影响灯光罩网的正常作业为前提。试验期间,灯光罩网作业40晚,放网297次,平均渔获率336.4kg·h-1,总渔获质量129.6 t,鸢乌贼（Sthenoteuthis oualaniensis）占85.31%,黄鳍金枪鱼（Thunnus albacaes）占0.21%。延绳钓作业7次,放钩2 700枚,总渔获质量1 281.6 kg,剑鱼（Xiphias gladius）和黄鳍金枪鱼分别占72.88%和11.16%;延绳钓平均上钩率和CPUE分别为25.74尾·千钩-1和427.4...

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Bibliographic Details
Published in南方水产科学 Vol. 12; no. 4; pp. 110 - 116
Main Author 张鹏 陈森 李杰 张衡 晏磊 杨炳忠
Format Journal Article
LanguageChinese
Published 中国水产科学研究院南海水产研究所,农业部南海渔业资源环境科学观测实验站,广东广州510300%中国水产科学研究院东海水产研究所,上海,200090 2016
Subjects
延绳钓
捕捞试验
灯光罩网渔船
金枪鱼
延绳钓
tuna
light falling-net vessel
金枪鱼
longline
fishing experiment
灯光罩网渔船
捕捞试验
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ISSN2095-0780
DOI10.3969/j.issn.2095-0780.2016.04.014

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Summary:2015年3月-4月利用＂粤电渔42212＂灯光罩网渔船在南沙北部海域开展了金枪鱼延绳钓捕捞试验。延绳钓试验以不影响灯光罩网的正常作业为前提。试验期间,灯光罩网作业40晚,放网297次,平均渔获率336.4kg·h-1,总渔获质量129.6 t,鸢乌贼（Sthenoteuthis oualaniensis）占85.31%,黄鳍金枪鱼（Thunnus albacaes）占0.21%。延绳钓作业7次,放钩2 700枚,总渔获质量1 281.6 kg,剑鱼（Xiphias gladius）和黄鳍金枪鱼分别占72.88%和11.16%;延绳钓平均上钩率和CPUE分别为25.74尾·千钩-1和427.48 kg·千钩-1,其中黄鳍金枪鱼为1.90尾·千钩-1、52.74 kg·千钩-1,剑鱼为3.76尾·千钩-1、291.86 kg·千钩-1。试验证明,金枪鱼延绳钓和灯光罩网的渔场分布恰好一致,作业时间没有冲突。相比发展专业钓船,罩网渔船兼作延绳钓具有投资金额少、生产成本低的优势。建议通过探捕拓展和延长外海渔期,并研究解决金枪鱼保鲜问题。
Bibliography:tuna; longline; light falling-net vessel; fishing experiment
44-1683/S
ZHANG Peng,CHEN Sen,LI Jie,ZHANG Heng,YAN Lei,YANG Bingzhong（1. Scientific Observing and Experimental Station o f South China Sea Fishery Resources ＆ Environments,Ministry of Agriculture ; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China ; 2. East China Sea Fisheries ResearchInstitute, Chinese Academy of Fishery Sciences, Shanghai 200090, China ）
An experiment of tuna longline were conducted by light falling-net fishing vessel ＂YUE DIAN YU NO. 42212 ＂in the north waters of the Nansha Islands from March to April in 2015 on the premise that the experiment has no effect on the falling-net fishing. During the trip,the falling-net operated 297 times within 40 d with total catch of 129. 6 t and average catch rate of 336. 4kg·h- 1. Sthenoteuthis oualaniensis was the dominant species,accounting for 85. 31% of the total catch,and Thunnus albacares occpuied 0. 21% of the total. Longline operated
ISSN:2095-0780
DOI:10.3969/j.issn.2095-0780.2016.04.014