Institute of Ecology of the Volga River Basin, RAS
Komzina str., 10, Togliatti, 445003 Russia
*E-mail: genarozenberg@yandex.ru
**E-mail: zinchenko.tdz@yandex.ru
The article discusses the features of what is called “hydrobiological succession of flowing waters” in modern scientific literature. These features are associated with the dual nature of such changes: temporal (classical, inherent in a given geographical point) and spatial (“longitudinal”) successions (in the latter case, it is more accurate to speak of “clinal” changes – ecoclines, topoclines, etc.). This allows, on the one hand, to correct modern knowledge about flowing waters, and, on the other hand, to contribute to a better understanding of succession as a general ecological concept.