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- Title
Bioindication of the state of deep-water areas in Petrozavodsk Bay, Lake Onega, by macrozoobenthos characteristics.
- Authors
Kalinkina, N.; Belkina, N.; Polyakova, T.; Syarki, M.
- Abstract
Amphipods-oligochaetes index has been developed for the assessment of the state of macrozoobenthos in deep-water areas of Lake Onega. By the value of this index, bed areas of Petrozavodsk Bay, which are subject to the effect of municipal wastewaters, tank farm, rivers within the city boundaries, and the Shuya R., a large tributary of Lake Onega, show a high degree of transformation of zoobenthos community and highest pollution. The ratios of the major zoobenthos groups (amphipods and oligochaetes) in the central part of Petrozavodsk Bay and on its northern shore is at the natural level, but their abundance is dozens of times greater than that in background areas of Lake Onega. A reliable correlation was found to exist between the values of amphipods-oligochaetes index and the redox potential of the top layer of bottom sediments.
- Subjects
PETROZAVODSK (Russia); ONEGA Lake (Russia); AMPHIPODA; MARINE sediments; INDUSTRIAL wastes; BENTHIC animals
- Publication
Water Resources, 2013, Vol 40, Issue 5, p528
- ISSN
0097-8078
- Publication type
Article
- DOI
10.1134/S0097807813050047