Zooplankton structure in two interconnected ponds: similarities and differences

The research of zooplankton diversity, abundance and trophic structure was conducted during the summer period in pelagial zone on the longitudinal profile of the Sutla River Backwater. Investigated site consists of two interconnected basins: transparent Upper Basin with submerged macrophytes and tur...

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Main Authors: Špoljar Maria, Tomljanović Tea, Dražina Tvrtko, Lajtner Jasna, Štulec Helena, Matulić Daniel, Fressl Jelena
Format: Article
Language:English
Published: Sciendo 2016-03-01
Series:Croatian Journal of Fisheries
Subjects:
Online Access:https://doi.org/10.1515/cjf-2016-0002
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spelling doaj-040ac39868de417c91663f274dcce6692021-09-06T19:19:39ZengSciendoCroatian Journal of Fisheries1848-05862016-03-0174161310.1515/cjf-2016-0002cjf-2016-0002Zooplankton structure in two interconnected ponds: similarities and differencesŠpoljar Maria0Tomljanović Tea1Dražina Tvrtko2Lajtner Jasna3Štulec Helena4Matulić Daniel5Fressl Jelena6University of Zagreb, Faculty of Science, Department of Biology, Zoology, Zagreb, CroatiaUniversity of Zagreb, Faculty of Agriculture, Department of Fisheries, Beekeeping, Game Management and Special Zoology, Zagreb, CroatiaUniversity of Zagreb, Faculty of Science, Department of Biology, Zoology, Zagreb, CroatiaUniversity of Zagreb, Faculty of Science, Department of Biology, Zoology, Zagreb, CroatiaMinistry of construction and physical planning, Directorate for construction and energy efficiency in the buildings sector, Zagreb, CroatiaUniversity of Zagreb, Faculty of Agriculture, Department of Fisheries, Beekeeping, Game Management and Special Zoology, Zagreb, CroatiaDvokut ECRO Ltd., Zagreb, CroatiaThe research of zooplankton diversity, abundance and trophic structure was conducted during the summer period in pelagial zone on the longitudinal profile of the Sutla River Backwater. Investigated site consists of two interconnected basins: transparent Upper Basin with submerged macrophytes and turbid Lower Basin without macrophytes in the littoral zone. In the Upper Basin, abundance and diversity of zooplankton in the pelagial was higher in comparison to the Lower Basin, with prevailing species of genus Keratella as microfilter-feeder, and genera of Polyartha and Trihocerca as macrofilter-feeder rotifers. On the contrary, in the Lower Basin, crustaceans dominated in abundance. Microfilter-feeder cladoceran (Bosmina longirostris) and larval and adult stages of macrofilter-feeder copepod (Macrocyclops albidus) prevailed in the Lower Basin. Fish predation pressure was more pronounced in the pelagial of the Upper Basin, indicated by low cladoceran abundance in the surface layer. Although the studied basins were interconnected, results indicate significant (Mann-Whitney U test, p < 0.05) differences in the zooplankton structure as a potential result of the macrophyte impact on environmental conditions and fish predation pressure.https://doi.org/10.1515/cjf-2016-0002submerged macrophytestransparencyturbiditypredationfish
collection DOAJ
language English
format Article
sources DOAJ
author Špoljar Maria
Tomljanović Tea
Dražina Tvrtko
Lajtner Jasna
Štulec Helena
Matulić Daniel
Fressl Jelena
spellingShingle Špoljar Maria
Tomljanović Tea
Dražina Tvrtko
Lajtner Jasna
Štulec Helena
Matulić Daniel
Fressl Jelena
Zooplankton structure in two interconnected ponds: similarities and differences
Croatian Journal of Fisheries
submerged macrophytes
transparency
turbidity
predation
fish
author_facet Špoljar Maria
Tomljanović Tea
Dražina Tvrtko
Lajtner Jasna
Štulec Helena
Matulić Daniel
Fressl Jelena
author_sort Špoljar Maria
title Zooplankton structure in two interconnected ponds: similarities and differences
title_short Zooplankton structure in two interconnected ponds: similarities and differences
title_full Zooplankton structure in two interconnected ponds: similarities and differences
title_fullStr Zooplankton structure in two interconnected ponds: similarities and differences
title_full_unstemmed Zooplankton structure in two interconnected ponds: similarities and differences
title_sort zooplankton structure in two interconnected ponds: similarities and differences
publisher Sciendo
series Croatian Journal of Fisheries
issn 1848-0586
publishDate 2016-03-01
description The research of zooplankton diversity, abundance and trophic structure was conducted during the summer period in pelagial zone on the longitudinal profile of the Sutla River Backwater. Investigated site consists of two interconnected basins: transparent Upper Basin with submerged macrophytes and turbid Lower Basin without macrophytes in the littoral zone. In the Upper Basin, abundance and diversity of zooplankton in the pelagial was higher in comparison to the Lower Basin, with prevailing species of genus Keratella as microfilter-feeder, and genera of Polyartha and Trihocerca as macrofilter-feeder rotifers. On the contrary, in the Lower Basin, crustaceans dominated in abundance. Microfilter-feeder cladoceran (Bosmina longirostris) and larval and adult stages of macrofilter-feeder copepod (Macrocyclops albidus) prevailed in the Lower Basin. Fish predation pressure was more pronounced in the pelagial of the Upper Basin, indicated by low cladoceran abundance in the surface layer. Although the studied basins were interconnected, results indicate significant (Mann-Whitney U test, p < 0.05) differences in the zooplankton structure as a potential result of the macrophyte impact on environmental conditions and fish predation pressure.
topic submerged macrophytes
transparency
turbidity
predation
fish
url https://doi.org/10.1515/cjf-2016-0002
work_keys_str_mv AT spoljarmaria zooplanktonstructureintwointerconnectedpondssimilaritiesanddifferences
AT tomljanovictea zooplanktonstructureintwointerconnectedpondssimilaritiesanddifferences
AT drazinatvrtko zooplanktonstructureintwointerconnectedpondssimilaritiesanddifferences
AT lajtnerjasna zooplanktonstructureintwointerconnectedpondssimilaritiesanddifferences
AT stulechelena zooplanktonstructureintwointerconnectedpondssimilaritiesanddifferences
AT matulicdaniel zooplanktonstructureintwointerconnectedpondssimilaritiesanddifferences
AT fressljelena zooplanktonstructureintwointerconnectedpondssimilaritiesanddifferences
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