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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Печать: 0018-8166
ISSN Онлайн: 1943-5991

Выпуски:
Том 56, 2020 Том 55, 2019 Том 54, 2018 Том 53, 2017 Том 52, 2016 Том 51, 2015 Том 50, 2014 Том 49, 2013 Том 48, 2012 Том 47, 2011 Том 46, 2010 Том 45, 2009 Том 44, 2008 Том 43, 2007 Том 42, 2006 Том 41, 2005 Том 40, 2004 Том 39, 2003 Том 38, 2002 Том 37, 2001 Том 36, 2000 Том 35, 1999 Том 34, 1998

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v44.i6.20
pages 13-21

Role of Dreissena and Abramis Brama Fry in Changes in the Dynamics and Relationships in Plankton Communities of Experimental Ecosystems

S. A. Kurbatova
Institute of Biology of Inland Waters Russian Academy of Sciences, Borok, Russia
N. A. Lapteva
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russia

Краткое описание

Changes in the dynamics of communities of phyto-, bacterio-, and zooplankton in the presence of Dreissena and Abramis brama fry were studied under model conditions. It has been found that in the presence of Dreissena phytoplankton numbers and bacterioplankton biomass decreased. The size of algae filtered by Dreissena was 40 μm, whereas the volume of bacteria was about 0.2 μm3 at their numbers of 4−5 million cells/ml. In the community of zooplankton, the presence of mollusks was responsible for the decrease in the numbers of filter-feeding Cladocera, including Daphnia longispina. In the experiments with Abramis brama fry, the numbers of algae increased, whereas the contribution of Cladocera to the total numbers of zooplankton decreased. The biomass and production of bacteria remained almost unchanged and depended on the development of zoo- and phytoplankton.


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