| 浙江近海水温的层化现象及与渔业生产的关系 |
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| 引用本文： | 朱德坤,郑平胜.浙江近海水温的层化现象及与渔业生产的关系[J].海洋科学,1984,8(3):12-15. |
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| 作者姓名： | 朱德坤 郑平胜 |
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| 作者单位： | 浙江省海洋水产研究所
(朱德坤)，浙江省海洋水产研究所(郑平胜) |
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| 摘 要： | 本文以1978—1982年浙江省海洋水产研究所秋、冬汎嵊山、大陈渔场水文调查资料为主要依据,分析了北纬28°—31°、东经125°以西海城内,四个纬向断面水温的逐月分布和变化。4—11月,表层水温比底层高,且在上均匀层下面存在着梯度层。水温存在垂直梯度层现象,本文泛指为水温层化。为了便于分析,本文以各断面梯度层强度大小作为分析水温层化时空变化的依据。在探讨水温层化与渔业生产关系时,整理了同期有关渔业的统计资料。
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RELATIONSHIP BETWEEN STRA- TIF1CAT1ON OF WATER TEMPERATURE AND FISHERY OFF ZHEJIANG |
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| Abstract: | This paper deals with the water temperature stratification and its formation in the sea areas of 28°-31°N, west of 125°E. It is found that the stratification is related to fishery production in autumn and winter fishing seasons. The spatial distribution of the stratification off Zhejiang varies with the latitude. The increase of solar radiation and the wedging-in of low temperature water with higher salinity from continental slope are the main cause of the stratification growth and slack. The duration of the thermocline is directly related to the progress of fishing season. Thus the slacking process after the stratification can be served as a qualitative index of fishing season. |
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