海洋岛西侧扇贝养殖区夏季水温连续变化特征的分析

ANALYSIS OF CONTINUOUS WATER TEMPERATURE CHANGE IN WESTERN HAIYANG ISLAND'S SCALLOP CULTURE AREA DURING SUMMERTIME

利用最新研制的测温链浮标，根据1994年6－8月在辽宁省长海县海鲜岛扇贝养殖区现场连续观测的水温实测数据，分析该区域水温连续变化特征。分析结果表明：在0－10m范围内，水温存在着极为频繁的急剧变化，而且水温的连续变化与潮位的变化基本相同。通过时间序列频谱分析可以看出，水温波动存在着明显的潮周期特征，并且水温剧烈波动的时间与扇贝出现大量死亡的时间相吻合.

A newly deVeoped mootal thermomerter-chain was first used for continuousobservahon of watef temperebe from June to Angus, 1994 in the scallop culture area of Haiyang Island, Changhai County, Liaoning Province.Observational data on the features of the water temperature continuous change were analysed and compared with the Synchronous change of the tidal. leve. The results showed that the water temperature under went frequently rapid changes between 0 - 10mdepth, and that the diumal change of the water temperature and the tidal leve were besically indentical. Frequency spectrum analyses of the water twereture time series showed that the Wavy variation of the water tempereture had the distinct features of the tidal period.This Study revaled high scallop mortality in the off Westem haiyang Is land upperto middle layer waters with frequentiy rapid wavy variation of temperature.