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Crayfish fauna of the Maksimir Lakes in the urban area of Zagreb
Njegovan V, Orešković M, Hudina S and Maguire I 
Published Online: 12/31/2017
Abstract
Due to the increasing anthropogenic pressures and the introduction of invasive alien species, indigenous crayfish species are rarely found in the urban areas of big cities. The aim of this research was to study, for the first time, presence and distribution of freshwater crayfish in artificial lakes of the Maksimir Park, located in the centre of Zagreb, the capital of Croatia. Additionally, the goal was to estimate population size and structure, and analyse morphometric characteristics, the proportion of injuries and crayfish body condition. In 4 out of 5 lakes within the park, two crayfish species, Astacus astacus and Astacus leptodactylus, were recorded with no overlap in their distribution. Each species was established in two lakes in relatively abundant populations. Differences in body condition, sex ratio and proportion of injuries were recorded between species. Recorded differences are most likely the result of different trapping techniques applied, predation of alien invasive species of turtles and intraspecific competition. Obtained results will serve as a baseline for further research and monitoring of the crayfish fauna in the Maksimir lakes.
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How to Cite
Njegovan V, Orešković M, Hudina S and Maguire I. (2017). Crayfish fauna of the Maksimir Lakes in the urban area of Zagreb. Freshwater Crayfish 23(1):1-11. doi: 10.5869/fc.2017.v23-1.1
Author Information
Vanja Njegovan, Department of Biology, University of Zagreb, Faculty of Science, Rooseveltov trg 6, Zagreb, Croatia, Croatia10000. E-mail: vanja.njegovan@jrm.hr
Mislav Oreškovic, Department of Biology, University of Zagreb, Faculty of Science, Rooseveltov trg 6, Zagreb, Croatia, Croatia10000. E-mail: oreskovic.mislav@gmail.com
Sandra Hudina, Department of Biology, University of Zagreb, Faculty of Science, Rooseveltov trg 6, Zagreb, Croatia, Croatia10000. E-mail: shudina@biol.pmf.hr
Ivana Maguire,* Department of Biology, University of Zagreb, Faculty of Science, Rooseveltov trg 6, Zagreb, Croatia, Croatia10000. E-mail: imaguire@zg.biol.pmf.hr
Corresponding Author indicated by an *.
Publication History
Manuscript Submitted: 10/19/2017
Manuscript Accepted: 12/11/2017
Published Online: 12/31/2017
Published in Print: 12/31/2017
Funding Information
No specific funding statement is available for this article.