【摘要】 <正> 前言 石岛近海是我国北方的重要渔场。每年春季,各种鱼、虾在此海域或经此海域进行产卵和索饵。水温的分布和变化,对鱼、虾的集群程度影响很大,从而与渔业生产密切相关。 为了满足渔业上的要求,我们整理了1960年以来共20年的系统资料,求出了多年平均水温,并对各年的冷暖状况进行了比较,找出了水温特点及变化规律,并结合渔业生产做了一些初步分析。更多还原

【Abstract】 This paper describes the average surface and bottom water temperatures,the rising rates and annual variations of water temperature off Shidao in the springs of 1960-1979.In combination with fishing operations,the characteristics of the distribution and the variation of water temperature as well as their effects on the migration of fishes,the fishing seasons and the fishing ground are also analysed.更多还原