Distribution of Sedimentary Pigments and Macrozoobenthos in the Deep Water Part of the Rybinsk Reservoir
N. A. TIMOFEEVA, S. N. PEROVA, L. E. SIGAREVA
Papanin Institute for Biology of Inland Waters RAS, 152742, Borok, Yaroslavl region, Nekouz district
Keywords: хлорофилл, феопигменты, макрозообентос, донные отложения, водохранилище, chlorophyll, pheopigments, macrozoobenthos, bottom sediments, reservoir
Abstract
On the base of observational data of 2009-2015 the spatial, seasonal and interannual variability of sedimentary pigment content and biomass of macrozoobenthos in the Rybinsk Reservoir (Russia) are analyzed. The peculiarities of the macrozoobenthos distribution in dependence of characteristics of biotopes, including the content of sedimentary pigments, water depth, water content in bottom sediments and their air-dry volumetric mass are revealed. Using correlations and the principal component analysis, the statistically significant positive relationship between the biomass of macrozoobenthos and the content of the sum of sedimentary chlorophyll a with pheopigments is established.
|
