海洋科学Issue(10)：45-51,7.DOI:10.11759/hykx20140621002
基于海表温度和海面高度的东太平洋大眼金枪鱼渔场预测
Forecasting ofBigeye tuna fishing ground in the Eastern Pa-cific Ocean based on sea surface temperature and sea surface height
摘要
Abstract
The technology research of fishing ground prediction for bigeye tuna in the eastern Pacific and the estab-lishment based on fishing ground prediction model of multiple environmental factors are of great importance for the efficient development and utilization of its resources. Bigeye tuna,Thunnus obesus, is one of the important tunas in the Eastern Pacific Ocean, and also one of the main fishing targets for Chinese tuna longline fishery. In this paper, based on the catch data from longline fishery in the areas (20°N~30°S and 85°~155°W) of Eastern Pacific Ocean during 2009~2011 and the environmental data from remote sensing including sea surface temperature (SST) and sea surface height (SSH), the catch is considered as the suitability index, and the suitability curves based on SST and SSH for one quarter were established by using a non-linear regression. The habitat suitability index model was set up by using arithmetic mean model (AMM), and was validated by using the actual catch data in 2012. The results showed that the fishing ground of bigeye tuna is located in the waters with 24~29℃ SST and 0.4~0.8 m SSH. The SI curve of each factor by using nonlinear regression is significant (P<0.05). Forecast accuracy of fisheries center is 63%, which is a high forecast accuracy. This forecasting model will play a guide role for fishing fleets in the tuna longline fishery.关键词
东太平洋/大眼金枪鱼(Thunnus obesus)/栖息地指数/渔场预测Key words
Eastern Pacific/Thunnus obesus/habitat suitability index/fishing ground forecasting分类
农业科技引用本文复制引用
沈智宾,陈新军,汪金涛..基于海表温度和海面高度的东太平洋大眼金枪鱼渔场预测[J].海洋科学,2015,(10):45-51,7.基金项目
国家863计划资助项目(2012AA092303) （2012AA092303）
海洋局公益性行业专项(20155014) （20155014）
国家科技支撑计划资助项目(2013BAD13B01) （2013BAD13B01）
