Benthic meiobenthos is one of the most important community to biomedical research.

深小型底栖生具有重要生医学研究价值。

In the stream with strong bed load movement there is no benthic macroinvertebrate.

河势散乱且河床运动剧烈的支流种密均很低甚至为零，生态条件差。

Closely associated with the benthic community are organisms collectively called periphyton or aufwuchs.

但是当变浅时，生相会改变。