Macrozoobenthos of the Small Aral Sea

Macrozoobenthos of the Small Aral Sea Benthic assemblages of the Small Aral Sea were studied in 1999. The species composition, density, and biomass of benthic invertebrates were determined. The vertical distribution pattern and its dynamics in the course of desiccation of the sea were analyzed. It is shown that the vertical distribution of the benthos has changed substantially over the last 30 years. The biomass of the benthos in the inshore zone increased, while in the central part of the sea, benthic invertebrate populations declined and gradually disappeared. These changes are likely to be due to the accumulation of organic matter in the bottom sediments and the weakening of hydrodynamic processes, which could lead to oxygen depletion in deep water. In the 1990s, the benthic assemblages of the Small Aral Sea were relatively stable and highly productive. It is concluded that the Aral Sea is a promising area for fishery restoration. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Macrozoobenthos of the Small Aral Sea

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1023/A:1013713706694
Publisher site
See Article on Publisher Site

Abstract

Benthic assemblages of the Small Aral Sea were studied in 1999. The species composition, density, and biomass of benthic invertebrates were determined. The vertical distribution pattern and its dynamics in the course of desiccation of the sea were analyzed. It is shown that the vertical distribution of the benthos has changed substantially over the last 30 years. The biomass of the benthos in the inshore zone increased, while in the central part of the sea, benthic invertebrate populations declined and gradually disappeared. These changes are likely to be due to the accumulation of organic matter in the bottom sediments and the weakening of hydrodynamic processes, which could lead to oxygen depletion in deep water. In the 1990s, the benthic assemblages of the Small Aral Sea were relatively stable and highly productive. It is concluded that the Aral Sea is a promising area for fishery restoration.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Oct 16, 2004

References

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