Ecological and toxicological assessment of water and bottom sediments in the Novosibirsk Reservoir |
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| Authors: | V V Gorgulenko L V Yanygina |
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| Institution: | 1. Institute for Water and Environmental Problems, Siberian Branch, Russian Academy of Sciences, ul. Molodezhnaya 1, Barnaul, 656038, Russia
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| Abstract: | The toxicological state of individual parts of the Novosibirsk Reservoir was assessed with the help of bioassay tests of water and water extracts from bottom sediments with the use of two species of protococcus algae (Scenedesmus quadricauda (Turp.) Breb., Chlorella vulgaris Beijer) and two species of entomostracans (Daphnia magna Straus, Ceriodaphnia affinis Lillijeborg). It was found that the Ob R. near Kamenon-Ob is more polluted in terms of water and less polluted in terms of bottom sediments, compared with those in the lower part of the reservoir. The bioassay results are in agreement with the results of benthos-based bioindication and studies of chlorophyll a and pollutant concentrations in water. |
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