拉尼娜期间中西太平洋鲣栖息地分布特征

晏然; 陈新军; 陈作志

doi:10.3969/j.issn.0253-4193.2018.04.007

拉尼娜期间中西太平洋鲣栖息地分布特征

doi: 10.3969/j.issn.0253-4193.2018.04.007

1.
上海海洋大学海洋科学学院, 上海 201306
2.
上海海洋大学海洋科学学院, 上海 201306;农业部大洋渔业开发重点实验室, 上海 201306;国家远洋渔业工程技术研究中心, 上海 201306;大洋渔业资源可持续开发教育部重点实验室, 上海 201306;农业部大洋渔业资源环境科学观测实验站, 上海 201306
3.
中国水产科学院南海水产研究所, 广东广州 510300

基金项目: 海洋局公益性行业专项（20155014）；上海市科技创新行动计划（5DZ1202200）；海洋二号卫星地面应用系统项目（HY2A-HT-YWY-006）。

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出版历程
- 收稿日期: 2017-06-04
- 修回日期: 2017-08-15

Distribution characteristics of skipjack habitat in the western and central Pacific during the La Niña periods

1.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
2.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Oceanic Fisheries Exploration, Ministry of Agriculture, Shanghai 201306, China;National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China;Scientific Observing and Experimental Station of Oceanic Fishery Resources, Ministry of Agriculture, Shanghai 201306, China
3.
South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China

摘要

摘要: 鲣是大洋中重要经济种类，主要分布于太平洋中西部海域，其渔场和资源丰度易受海洋环境因子影响。根据1995-2014年中西太平洋金枪鱼围网船队在主要作业海域（15°S~10°N，120°E~155°W）的生产数据，结合弱、中、强拉尼娜条件下的海表温度（SST）和海面高度（SSH）数据，运用算术平均法（AM）建立基于SST和SSH的栖息地指数综合模型。结果表明，在栖息地综合指数（HIS）大于0.6的海域，各拉尼娜时期作业比重均在60%以上。利用弱拉尼娜（2005年12月-2006年3月）、中拉尼娜（2011年10月-2012年3月）和强拉尼娜（2010年6月-2011年4月）数据进行模型验证，分析认为作业渔场主要分布在HSI大于0.6的海域，作业次数所占比重分别为53.9%、66.5%、63.6%。在中西太平洋区域，随着拉尼娜强度的增加，资源丰度上升，其渔场分布向东北和东南方向扩散。研究表明，基于SST和SSH各强度拉尼娜时期的栖息地模型均可较好预测中西太平洋鲣渔场，并为以后拉尼娜期间中心渔场的分析提供参考。
- 拉尼娜 /
- 鲣 /
- 栖息地模型 /
- 海表温度 /
- 海面高度 /
- 中西太平洋
Abstract: Skipjack is a commercially important species in the ocean, mainly distributed in the western-central Pacific, and its fishing grounds and resource abundance are susceptible to marine environmental factors. Based on the production data of the tuna purse seine fleet in the main fishing area (15°S-10°N,120°E-155°W)during the period 1995 to 2014, the sea surface temperature (SST) and sea surface height (SSH) data, the habitat models based on SST and SSH were established using the arithmetic mean (AM) model in the period of weak, medium and strong. The results show that in the water with Habitat suitability index (HSI) greater than 0.6, the proportion of operation in each stage of La Niña is above 60%. With the data obtained during weak La Niña (December 2005-March 2006), medium La Niña (October 2011 to March 2012) and strong La Niña (June 2010 to April 2011), it is found that the main fishing ground distributed in the waters with HSI greater than 0.6 in the HSI model, and its percentage of fishing times reached 53.9%, 66.5% and 63.6%, respectively. The results show that with the increase of the intensity of La Niña, the abundance is obviously increased, and the distribution of fishing ground spread to the northeast and southeast. The study shows that the habitat model based on SST and SSH in different La Niña modes can predict the skipjack in the western-central Pacific and provide a reference for the analysis of the fishing ground during the La Niña period.
- La Niña /
- skipjack /
- habitat suitability model /
- sea surface temperature /
- sea surface height /
- the western and central Pacific

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参考文献(16)

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