【摘要】 五里河口及葫芦岛锌厂排污使锦州湾南滩潮间带严重污染,造成一个无大型底栖动物区。此区从锌厂向东北扩大,包括五里河床及两侧,其面积约占南滩的四分之一。重污染区生存有少数小的双齿围沙蚕(Perinereis aibuhitensis Grube)。在邻接的污染区内,大量滋生双齿围沙蚕,密度达每平方米92～100条。还出现少数日本大眼蟹(Macrophthalmus japonicus de Haan),再向外随距离增加双齿围沙蚕密度降低,日本大眼蟹密度增加。 锦州湾潮下带受污染影响不及潮间带严重。只有低潮时污水停滞的湾底部是污染区。出现冠毛须鳃虫(Cirriformia comosa Marenzeller)——泥螺(Bullactaexarata Philippi)群落,生物量低,分布范围不大。其它大部分海区属轻污染区,大型底栖动物群的多样性指数值在1.0～1.5。更多还原

【Abstract】 This paper describes some of the effects of pollution to be found on thebenthic fauna in this intertidal zone of the Jinzhou Bay. The sites near thepollution source was animals-free but pollution-tolerant polychaete, Perinereisaibuhilensis, individual numbers increased with distance from the outfall,reaching enormous densities of well over 100 individuals/1 square metre at2KM.The results of investigation show that pollution in limited area in thissubtidal zone of the Jinzhou Bay during 1979～1980.更多还原