SEASONAL VARIABILITY OF MACROZOOBENTHOS IN A LAGOON WITH PERIODIC CONNECTION TO THE SEA (LAKE PTYCHJE, SOUTHERN SAKHALIN)

摘要

The seasonal variability of macrozoobenthos in a saline lagoon, which is not connected permanently to the sea, is described on the basis of the results obtained in investigations of Lake Ptichye (southern Sakhalin) in 2012-2013. Changes in the species composition, abundance and biomass of macrozoobenthos were revealed. Features of the formation of species complexes, benthic communities and trophic groups are shown. The reasons for the described phenomena are discussed.