infauna
- n.海底动物；底层水生动物
infauna-
Species Composition and Quantitative Distributions of Biomass and Density of the Macrobenthic Infauna in the Bohai Sea
渤海底栖动物种类组成和数量分布
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17 species occurred in infauna and the dominance species obviously changes as the seasons going . From the community index , infauna community is instable .
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；
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The general concept and composite patterns ichnofabric , tiering concept of infauna community , styles of tier or tiering models of ichnocoenosis , and the descriptive approaches of ichnofabric are briefly discussed .
扼要介绍和论述了痕迹组构的概念、复合型式、痕迹分层、梯阶类型或结构模式以及痕迹组构的一般描述方法等内容。