ZOOPLANKTON, ZOOBENTHOS, ICHTHYOFAUNA OF OB RIVER AND ARTIFICIAL RESERVOIRS WITHIN THE NOVOSIBIRSK BOUNDARIES
Studies of the river Ob corridor and flooded workings of building materials in the city of Novosibirsk, where the large construction planned, were conducted. In recent decades, the coastal soil of river Ob was siltect which facilitated the introduction of alien mollusk Viviparus viviparus. Currently, this invader accounts for up to 99.2% of the river benthos biomass. According to hydrophysical characteristics, species composition and level of development of zooplankton, zoobenthos and ichthyofauna, the foundation pit has acquired significant similarity with natural water bodies of the Ob riverbed floodplain. In an isolated stone quarry, biota was formed, combining the features of pond and oligotrophic water bodies with a poor species composition of zooplankton and ichthyofauna.