水生昆虫データによる河川生物生息環境の指標化について

抄録

Benthic macroinvertebrates have been often used as indices of river water quality from old times. In these days, a lot of researchers mainly in the EC are trying to find benthic macroinvertebrates based indices for estimation or classification of river ecological quality. The purpose of this study is to examine the relation between some river environmental or ecological factors and a variety of macroinvertebrates based indices for expressing diversity, abundance and constitution, in order to find out appropriate indices for rivers in Japan. The result shows that percentage of individual number of clingers can be a good index for water quality and some diversity indices closely relate to artificial channel structures.