Geomorphology and flooding shape fish distribution in a large-scale temperate floodplain

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dc.contributor.authorGórski, K.
dc.contributor.authorBuijse, A. D.
dc.contributor.authorWinter, H. V.
dc.contributor.authorDe Leeuw, J. J.
dc.contributor.authorCompton, T. J.
dc.contributor.authorVekhov, D. A.
dc.contributor.authorZolotarev, D. V.
dc.contributor.authorVerreth, J. A. J
dc.contributor.authorNagelkerke, L. A. J.
dc.date.accessioned2012-10-29T21:45:53Z
dc.date.available2012-10-29T21:45:53Z
dc.date.copyright2012-10-08
dc.date.issued2012
dc.description.abstractNatural river-floodplain systems are characterized by their dynamic hydrology and diverse geomorphology resulting in a wide range of habitats that support high fish diversity and production. Various factors (e.g. hydrological dynamics, water quality, and biotic processes) have been proposed to explain fish distribution in large river floodplains, but it is still widely acknowledged that the mechanisms involved may vary in diverse floodplain systems and that they are not fully understood. To determine how flooding dynamics and floodplain geomorphology influence fish species distributions across the Volga-Akhtuba floodplain, Russian Federation, we examined the distributions of eight species with respect to variables reflecting floodplain hydrology and geomorphology. On the basis of fish catches in 40 floodplain water bodies at the end of summer in 2006–2008, we found that frequency of occurrence of most fish species remained stable along the time. The distribution of fish species was strongly influenced by the size and shape of water bodies as well as flood extent. Therefore, the long-term flood variability that drives the geomorphic heterogeneity of the floodplain creates suitable habitats across ranges of fish flow guilds (rheophilic, eurytopic, and limnophilic), resulting in high diversity of the floodplain ichthyofauna. We conclude that this diverse habitat availability is a highly significant factor influencing fish distribution in the Volga-Akhtuba floodplain.en_NZ
dc.identifier.citationGorski, A.D., Buijse, H.V., Winter, J. J., De Leeuw, T. J., Compton, D. A., Vekhov, D. V., Zolotarev, J. A., Verreth, J. &. Nagelkerke. L. A. J. (2012). Geomorphology and flooding shape fish distribution in a large-scale temperate floodplain. River Research and Applications, article published online: 8 OCT 2012.en_NZ
dc.identifier.doi10.1002/rra.2610en_NZ
dc.identifier.issn1535-1467
dc.identifier.urihttps://hdl.handle.net/10289/6757
dc.language.isoen
dc.publisherRiver Research and Applications.en_NZ
dc.relation.isPartOfRiver Research and Applicationsen_NZ
dc.relation.ispartofRiver Research and Applications
dc.subjectVolga Riveren_NZ
dc.subjectgeomorphologyen_NZ
dc.subjectflood pulseen_NZ
dc.subjectspecies distribution modellingen_NZ
dc.titleGeomorphology and flooding shape fish distribution in a large-scale temperate floodplainen_NZ
dc.typeJournal Articleen_NZ
pubs.begin-page1226en_NZ
pubs.elements-id39218
pubs.end-page1236en_NZ
pubs.issue10en_NZ
pubs.volume29en_NZ
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