| epilithic diatom assemblages and their relationships with environmental variables in the nilüfer stream basin, bursa, turkey. | patterns of epilithic diatom species distribution in relation to environmental variables from 12 sampling sites on the main stream and some of its tributaries in the nilüfer stream basin were determined using multivariate statistical techniques. the stream basin has been heavily influenced by anthropogenic effects. the upper part of the basin that is distant from pollution sources mostly has a spring water quality, while the lower part where the stream flows through the urban area and receives d ... | 2017 | 28432510 |