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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimir: 0018-8166
ISSN En Línea: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v52.i3.50
pages 53-64

Modern State of the Biota of the Selenga River Delta (Lake Baikal Basin) under Conditions of Unstable Hydrological Regime. Report II. Macrozoobenthos

N. A. Rozhkova
Limnological Institute Siberian Department Russian Academy of Sciences Irkutsk, Russian Federation
V. N. Sinyukovich
Limnological Institute Siberian Department Russian Academy of Sciences Irkutsk, Russian Federation
O. A. Timoshkin
Limnological Institute, Siberian Department, Russian Academy of Sciences, Irkutsk, Russia
N. A. Bondarenko
Limnological Institute Siberian Department Russian Academy of Sciences Irkutsk, Russian Federation
A. V. Nepokrytykh
Limnological Institute Siberian Department Russian Academy of Sciences Irkutsk, Russian Federation
A. N. Matveyev
Irkutsk State University Irkutsk, Russian Federation

SINOPSIS

Dynamics of the qualitative and quantitative composition of macrozoobenthos were investigated in the straits of the Selenga River delta under conditions of unstable water regime in July − October 2012. It has been shown that during the period of summer flood accompanied by significant fluctuations in water level and flowrate, and also by changes in the composition of bottom sediments, the structure of benthic communities also essentially changed. On the whole, during the period of investigations the average quantitative indices of macrozoobenthos registered at different stations and in different months varied over a wide range: numbers − 830−27067 specimens/m2, whereas biomass − 0.64−44.02 g/m2.


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