底内动物
- 网络infauna
底内动物-
底内动物生活在水体底部的水生动物，尤指栖于松软海底的水生动物
" Aquatic animals that live in the substrate of a body of water , especially in a soft sea bottom . "
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结果表明，底内动物共出现17种，种类组成贫乏，优势种变化明显，生物量较1982~1983年杭州湾调查资料有一定降低，物种多样性指数低并有下降趋势，群落结构极不稳定；
17 species occurred in infauna and the dominance species obviously changes as the seasons going . From the community index , infauna community is instable .