Studying the Correlation between the Vegetable Pigments Content of Bottom Deposits and the Trophic Status Indices of the Gor'kovskoe Reservoir |
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Authors: | Sigareva L E Timofeeva N A |
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Institution: | (1) Institute of Inland Water Biology, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, 152742, Russia |
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Abstract: | Data on the distribution of vegetable pigments in bottom deposits and water mass is presented to characterize the ecological zones of the reservoir. The concentrations of pigments in the channel deposits are shown to increase from the reservoir head toward the dam in accordance with the difference in phytoplankton production in the zone of backwater pinching out, transient zone, and near-dam zone. It is shown that the space heterogeneity of the pigment characteristics of deposits is controlled by the soil properties and the pigments content of the top 2.5-cm layer of bottom deposits of the reservoir correspond to the average productivity level. |
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