摘要
本文根据 1995～ 2 0 0 1年的西北太平洋地区 ( 35°N～ 45°N,140°E～ 170°W)巴特柔鱼资源调查与生产的实际情况对柔鱼渔获量进行了研究 ,并利用同期遥感反演的海洋表层温度数据 ( SST)和近表层叶绿素 a数据( Chlorophyll a) ,拓展了 GIS的空间分析功能 ,定量地研究了我国远洋柔鱼产量与水温、叶绿素等海洋要素场之间的关系 ,揭示西北太平洋柔鱼中心渔场的环境特征 ,以期为我国西北太平洋海区的鱿鱼生产服务。
Using SST and chlorophyll-a data derived from remote sensing images and statistical production data collected from fishery companies from 1995～2001, the relationship between fishing ground of Ommastrephes bartrami in Northwest Pacific Ocean(35°N～45°N,140°E～170°W)and its marine environmental factors was analyzed. The results indicate that the Ommastrephes bartrami is distributed west-eastwards extensively, while spatially isolated due to the effect of sea conditions. Especially from 140°E to 160°E, the spatial patterns of fishery, SST range and averaged chlorophyll-a have a good relationship, and a reasonable explanation is given. With the help of GIS, the function of spatial analysis is extended to quantitatively construct the relationships between Ommastrephes bartrami resources, sea surface temperature (SST) and chlorophyll-a concentration grades,which provide a more delicated analysis between the spatial distribution of squid fishery and the environmental factors. And we find the environmental factors, especially the sea grades have an important impact on the Ommastrephes bartrami distribution. But its output and sea grades in the specific area are not related simply in quantity, and their spatial patterns are contiguous, not overlapped exactly. Further research on the mechanism of Ommastrephes bartrami fishing ground should be carried out to collect more information on deeper water such as temperature, salinity and chlorophyll.
出处
《地球信息科学》
CSCD
2003年第1期39-44,共6页
Geo-information Science
基金
国家 8 6 3计划项目 818-11-0 3课题资助
关键词
海洋环境
太平洋
柔鱼资源
GIS
空间分析
地理信息系统
Resources of ommastrephes bartrami,Marine environment,GIS,Spatial analysis,Northwest Pacific Ocean
