水产学报2017，Vol.41Issue(2)：240-249,10.DOI:10.11964/jfc.20160510401
秋冬季智利竹荚鱼栖息地指数模型比较
A comparative study on habitat suitability index of Trachurus murphyi during autumn and winter
摘要
Abstract
The seasons of autumn and winter are the main fishing time of Trachurus murphyi.It has practical meaning to establish the forecasting model of fishing grounds for T.murphyi.In this paper,we established the habitat suitability index of T.murphyi during autumn and winter based on Chinese commercial fishing data of T.murphyi in Southeast Pacific during May to September from 2003 to 2009 and combined with oceanic environmental data including sea surface temperature (SST) and sea surface height (SSH).The fishing effort and CPUE are considered as the indicator of suitability index (SI),and the curves of SI were estimated by using the method of Data Envelopment Analysis.And the Arithmetic Mean Model (AMM),Geometric Mean Model (GMM) and the weighted AMM are used to establish the integrated habitat suitability index (HSI).The fishery data in 2010 and 2011 are used to compare and test the HSI model.The results indicated that the SI curve based on fishing effort is better than that based on CPUE,and the AMM is better than that the GMM.The weighted AMM is also more suitable than the general AMM,and the monthly suitable weight of SST during May to September is 0.4,0.7,0.5,0.7 and 0.1,respectively.In 2010 and 2011,in the fishing areas with greater than 0.6 of HIS,the percentages of catch and fishing effort attained 75％-93％ and 80％-90％ respectively.It is concluded that the habitat suitability index during May to September based on fishing efforts by using external envelope method with monthly weights of SST could be used to predict the fishing ground of T.murphyi.In different months,SST and SSH have different effects on fishing ground of T.murphyi during autumn and winter.关键词
智利竹荚鱼/栖息地适应性指数/海洋环境因子/外包络法/基于权重的算术平均法Key words
Trachurus murphyi/habitat suitability index/oceanic environmental data/external enveloped method/arithmetic weighted mean model分类
生物科学引用本文复制引用
蒋瑞,陈新军,雷林,汪金涛..秋冬季智利竹荚鱼栖息地指数模型比较[J].水产学报,2017,41(2):240-249,10.基金项目
海洋局公益性行业专项(20155014)Public Science and Technology Research Funds Project of Ocean (20155014) （20155014）
