摘要
从GIS的空间分析的角度研究渔业产量同海洋环境要素的关系 ,结合东海区( 118.5°～ 130°E ,2 4°～ 36°N) 1987～ 1998年的海表温度场及同期的中上层鱼类的渔获量数据 ,定量地刻划出温度场与温度梯度场分别与渔捞量之间关系 。
Temperature, as one of the main factors, is thought to play a dominant role in determining the spatial and temporal distribution of fish centers and fishing grounds. For many species of marine fish, research has provided much information about its spawning, feeding habitats and migrations, but it always is empirical information. In order to analyze the relationship between SST and purse net production quantitatively in East China Sea (N24 N36, E118.5 E130).A time series of mean weekly sea surface temperature (SST) images and corresponding purse net statistic production data were analyzed in detail for the region from 1987 1997 using GIS spatial analysis model and mapping techniques, thereby, it is concluded that SST data has great correlation with purse net production and their relationship has spatio temporal change steadily during recent ten years.
出处
《高技术通讯》
EI
CAS
CSCD
2001年第2期56-60,共5页
Chinese High Technology Letters
基金
86 3计划资助项目!(86 3 818 0 7 0 2 )
