Structure, biomass and some characteristics of aquatic communities.

The production characteristics of zooplankton and zoobenthos communities have been studied in several lakes and reservoirs. Their relationship with the primary production of plankton and the biomass of the communities is shown. The P/B ratio in the zooplankton community is five times higher than the ratio in the benthic communities. The greatest number of stenobiont species in the zooplankton communities is recorded at a water transparency close to 4 m.