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CHANGES OF POPULATION CHARACTERISTICS OF LAKE FROG (RANA RIDIВUNDA PALL.) AT DWELLING IN PONDS-EVAPORATORS OF SUGAR FACTORIES
03.00.00 Biological sciences
Description
In this article the changes of age and sexual structures of populations of a lake frog from ponds-evaporators of sugar factories are show. The are the low number of adult animals, the increase of frogs of morpha maculate and females
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BIORESOURCE POTENTIAL AND FEATURES OF POSSIBILITIES OF BIOPRODUCTS OF ARTIFICIAL BIOTECHNICAL CONSTRUCTIONS IN THE CONDITIONS OF NORTH AND MIDDLE CASPIAN SEA
03.00.00 Biological sciences
Description
The features of functioning of the reef modules are studied in the conditions of north and middle parts of the Caspian sea in the district of knocking down of depths. Quantitative descriptions of benthos associations are set in the district of setting of artificial reefs and in their zone of influence. The estimation of efficiency of module constructions is executed. Optimal materials and structural decisions, most suitable for the terms of district of researches are specified