文章摘要
南海春季月相、水深、作业时间与鸢乌贼CPUE关系
A research on the ralationship between lunar phase, water depth and operation time and CPUE of purpleback flying squid (Sthenoteuthis oualaniensis) in South China Sea in spring
投稿时间:2018-11-28  修订日期:2018-12-17
DOI:
中文关键词: 鸢乌贼,水深,月相,GAM,厄尔尼诺现象
英文关键词: Sthenoteuthis oualaniensis  Depth  Moon phase  GAM  El nino
基金项目:国家重点研发计划资助项目, 2018YFD0900905; 国家自然科学基金项目, 41476149和41376158号; 广东省南海深远海渔业管理与捕捞工程技术中心配套经费。
作者单位E-mail
招春旭 集美大学 ct9zcx@163.com 
邱星宇 广东海洋大学  
何雄波 集美大学  
王国易 广东海洋大学  
顾银娜 广东海洋大学  
钟亚娜 广东海洋大学  
颜云榕 广东海洋大学  
康斌 集美大学 bkangfish@163.com 
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中文摘要:
      根据2015和2016年春季灯光罩网渔船分别在南海南部和北部海域作业的鸢乌贼产量数据,研究作业条件水深、时间和月相与CPUE的关系。GAM模型分析,作业时间和农历日对CPUE的影响是显著的 (P<0.01)。结果表明:月光天时,0-999m水深范围CPUE较低;月黑天时,各水层CPUE变化不大,2500-2999m水深范围CPUE较高;作业时间在上半夜 (21~23时),CPUE较高,最高达399.4kg/net,下半夜 (0~5时) CPUE逐渐下降;月光天和月黑天产量差别较大,分别为267.0kg/net和321.6kg/net;厄尔尼诺现象在一定程度影响鸢乌贼资源量在各水层的变化。各作业条件对鸢乌贼CPUE影响的研究能够为渔场的寻找提供可靠的建议。
英文摘要:
      According to the yield data of the purpleback flying squid in the southern and northern sea area of the South China Sea in spring in 2015 and 2016, the present research was carried out to analyze the relationship between depth, working time and moon phases and CPUE under the condition of operating. From the GAM model analysis, we knew that the effect of operation time and lunar day on CPUE was significant (P < 0.01). The results showed that CPUE is relatively low at the depth of 0-999m under the water in the bright moonlight. When there was no-moonlight, the CPUE in each water layer changed little, and the CPUE at the depth of 2500-2999m was relatively higher. When the working time in the first half of the night (21:00~24:00), the CPUE was higher, which wan up to 399.4kg/net the most, and the CPUE gradually decreased in the second half of the night (0:00~5:00). There was a great difference in the yield of the bright moonlight and no-moonlight, which were respectively 267.0kg/net and 321.6kg/net. El nino has impact on the changes of the purpleback flying squid resources in various water layers to a certain extent. The research on the effect of operational conditions on CPUE of the purpleback flying squid can provide reliable suggestions for fishing ground.
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