| 摘要: |
| 河口海区是浮游生物大量繁殖孳生的水域，也是许多水产动物的产卵、索饵场。渤海湾历来盛产食用贝类，又是某些经济鱼、虾类的天然渔场。但近十多年来，渤海西部主要鱼、贝类的产量逐年下降；探讨其原因时必然会考虑渤海湾的陆源污染是否已经危及饵料基础，从而导致渔业资源的衰退。本文试图通过查明渤海湾浮游动物生态现状，揭示陆源污染对其产生的影响，为评估渤海湾环境质量和采取渔业环境保护措施提供一个方面的科学依据。 |
| 关键词: 陆源排污、渤海湾、浮游动物 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第1403号 |
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| ECOLOGICAL EFECTS OF TERRIGENOUS POLLUTION ON ZOOPLANKTON IN THE BOHAI BAY |
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Xiao Yichang
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| The effects of terrestical pollution on zooplankton are analyzed for the Bohai Bay and the estuary areas of rivers along Tanggu coast (1979-1980). The main results are as follows:
1. There are no distinct effects observed on marine zooplankton in the offshore waters of the Bohai Bay. And the marine zooplanktion maintains a normal ecological balance.
2. The animal plankton distribution in the nearshore areas close to the mouths of rivers shows some abnormal phenomena in its species composition and quantitative distribution.
3. The pollution has harmed the organisms and reduced them in both species and number of individuals within the debouchments of the rivers.
It is clear that the contents of heavy metals and organic materials in the samples of water, surface sediments and planktonic organisms are decreased with the seaward flowing of polluted water, So the estuary process has played an important role in purification of the waters.
According to the ecological features of the zooplankton, the area investigated covering the estuaries to the sea may be classified into four different zones: (1) heavily polluted zone；(2) slightly polluted zone; (3) trace pollution zone and (4) purified zone. |
| Key words: TERRIGENOUS POLLUTION,ZOOPLANKTON,BOHAI BAY |
