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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。
Wuli mouth and Huludao zinc plant sewage Jinzhou Bay South Beach tidal pollution, resulting in a large meiobenthos area. This area has expanded from the zinc factory to the northeast, including the Wuli River bed and both sides, accounting for about a quarter of the South Beach. There are a few small perinereis aibuhitensis Grube in heavily polluted areas. Adjacent to the contaminated area, a large number of breeding bisexual Nereis, the density of 92 to 100 per square meter. A few Japanese mackerel (Macrophthalmus japonicus de Haan) also appeared. With the increase of distance, the density of B. binata decreased and the density of Japanese eyed crab increased. Jinzhou Bay tidal zone less affected by the pollution intertidal zone serious. Only at low tide at the bottom of the sewage stagnant is the polluted area. The Cirriformia comosa Marenzeller - Bullactaexarata Philippi community appeared with low biomass and a small distribution. Most of the other sea areas are lightly polluted and the diversity index of macrobenthic fauna is between 1.0 and 1.5.