ORIGINAL RESEARCH
Stability in Planktonic Rotifer Assemblages Found in Four Old Diversified Forest Ponds of Eastern Poland
Andrzej Marek Demetraki-Paleolog1, Joanna Sender2, Marcin Kolejko2, Radosław Ścibior3
 
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1Department of Hydrobiology, University of Life Sciences in Lublin,
Dobrzańskiego 37, 20-262 Lublin, Poland
2Department of Landscape Ecology and Nature Conservation, University of Life Sciences in Lublin,
Dobrzańskiego 37, 20-262 Lublin, Poland
3Department of Zoology, Animal Ecology and Wildlife Management, University of Life Sciences in Lublin,
Akademicka 13, 20-950 Lublin, Poland
 
 
Submission date: 2017-05-04
 
 
Final revision date: 2017-06-19
 
 
Acceptance date: 2017-06-19
 
 
Online publication date: 2017-12-13
 
 
Publication date: 2018-01-02
 
 
Pol. J. Environ. Stud. 2018;27(1):63-70
 
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ABSTRACT
One of the most interesting and relatively little known water ecosystems of „Lasy Janowskie” Landscape Park is a group of old ponds which have been excluded from intensive fisheries for many decades. Two of these ponds, belonging to pond complexes, and two other situated outside such complexes were studied in 1996, 2005, 2013 and 2015, regarding their planktonic rotifer assemblages. The total of 65 rotifer taxa were recorded in the plankton. The number of its species in individual reservoirs and years of study ranged from 7 to 21, and their density was from 29 to 775 ind. dm-3. As many as 25 species in individual ponds and study periods represented dominnats. The present work aimed at determining which of those tiny yet fl oristically rich ponds were inhabited by more sustainable rotifer assemblages, regarding both their quality and quantity, and to which ecological qualities was such sustainability related to a higher degree; species richness, their diversity, density, biomass, composition or domination structure.. The results of the studies revealed slight variability of ecological properties among the planktonic rorifers in the ponds composing large reservoir groups and a significantly higher variability of these qualities in the „single” ponds which were situated at a long distance from large pond complexes.
eISSN:2083-5906
ISSN:1230-1485
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