Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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BIOTOPICAL TAXA ZOOBENTHOS FOR SOLIS WITH DIFFERENT SHARES OF SIZE FRACTIONS

Korlyakov K.A. 1 Nokhrin D.Yu. 2
1 Chelyabinsk State University
2 Uralsky branch of All-Russia Research Institute of Veterinary Sanitation
The influence of the size fractions of sediments on the taxonomic structure and abundance of zoobenthos in a number of reservoirs. Ties revealed between the dominant faction in the sample and the dominant taxa. Picks up the so-called typical habitats represented silt , sand, gravel and pebbles separated by size on 7 fractions. Set biotopical infauna (Oligochaeta , Chironomidae) to the smallest fraction - 1 mm or less . Invertebrates have preferred the larger limbs fractions that have already mastered as complex three-dimensional substrates . For each taxonomic group found the most preferred range of size fractions of soil. With the reduction of the share of the most fines aside oozes zoobenthos biomass in general increases, primarily due to the infauna , which has the greatest number . Identified patterns are characteristic of different trophic structure of hydrodynamics and water bodies.