Syrton Composition and Diurnal Periodicity of Drift of Stream Bottom Invertebrates in the River of Tym" and Its Upper Tributary Uglovoy Stream (Sakhalin Island)

Abstract

The specific structure of syrton of the river of Tym (75 taxa) and Uglovoy Stream (39 taxa) is defined in June-July 2010. Quantitative characteristics and diurnal periodicity of drift are considered. It is shown that dynamics of drift is defined by 1-3 dominating species of bottom invertebrates.