西北太平洋柔鱼资源丰度时空分布的GAM模型分析  

Temp-spatial Distribution on Abundance Index of Nylon Flying Squid Ommastrephes bartrami in the Northwestern Pacific Using Generalized Additive Models

作　　者：陈新军[1] 田思泉[1] 

机构地区：[1]上海水产大学海洋学院,上海200090

出　　处：《集美大学学报（自然科学版）》2006年第4期295-300,共6页Journal of Jimei University：Natural Science

基　　金：上海市启明星计划项目(02QC14040);上海市重点学科资助项目(T1101)

摘　　要：根据1996~2001年我国在西北太平洋海域柔鱼生产统计及相关数据,利用GAM模型分析了表温、月份、经纬度等因子对柔鱼资源丰度CPUE的影响.研究认为,经纬度、月份和表温对CPUE时空分布都有较大的影响.160°E以西海域CPUE高,而165°E以东海域低,并主要集中在40°N^43°N海域.8~10月CPUE为最大.不同海域柔鱼分布的适宜表温不相同,150°E以西海域为13~18℃,150°E^165°E海域为14~18℃,165°E^180°E海域为11~14℃.Based on the catch statistics and other data from Chinese squid jigging fishery in the Northwestern Pacific between 1996 and 2001, the effects of SST and temp-spatial factors on abundance index of nylon flying squid were analyzed using generalized additive models. The results showed that these factors greatly affected the CPUE of squid abundance. In the waters west to 160°E, the CPUE was relative high, while in the waters east to 165°E the CPUE was low. The squid mainly located in the waters from 40° to 43°N. Generally the CPUE from August to October attained the highest level. The suitable SST varied with the different areas where squid distributed. In the west waters of 150°E, the SST located between 13℃ and 18℃. In the waters between 150° and 165°E, the SST was from 14℃ to 18℃. In the waters between 165 °E and 180°E, the SST was from 11℃ to 14℃.

关 键 词：柔鱼资源 影响因子 GAM模型 西北太平洋 

分 类 号：S931[农业科学—渔业资源]