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Towards a better understanding of small scale distribution of littoral age-0 fish in a deep-valley reservoir: day or night surveys?
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SYSNO ASEP 0428815 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Towards a better understanding of small scale distribution of littoral age-0 fish in a deep-valley reservoir: day or night surveys? Author(s) Kratochvíl, Michal (BC-A)
Vašek, Mojmír (BC-A) RID, ORCID
Peterka, Jiří (BC-A) RID, ORCID
Draštík, Vladislav (BC-A) RID, ORCID
Čech, Martin (BC-A) RID, ORCID
Jůza, Tomáš (BC-A) RID, ORCID
Muška, Milan (BC-A) RID, ORCID
Matěna, Josef (BC-A) RID
Kubečka, Jan (BC-A) RID, ORCIDSource Title Hydrobiologia. - : Springer - ISSN 0018-8158
Roč. 728, č. 1 (2014), s. 125-139Number of pages 15 s. Language eng - English Country NL - Netherlands Keywords spatial distribution ; habitat use ; juvenile fish ; littoral zone ; deep reservoirs ; electrofishing Subject RIV EH - Ecology, Behaviour R&D Projects EE2.3.20.0204 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support BC-A - RVO:60077344 UT WOS 000332745800009 EID SCOPUS 84895811785 DOI 10.1007/s10750-014-1812-x Annotation The effect of diel period and littoral habitats on the distribution of age-0 fish was tested in a deep-valley reservoir using boat-modified point abundance sampling by electrofishing (PASE). Day and night samplings unveiled differences in abundance of age-0 fish while recognizing most of the commonly present age-0 fish species in the littoral zone. Night survey provided better information about the abundance of age-0 fish since most species appeared in higher numbers at night. Alternatively, night sampling underestimated bleak (Alburnus alburnus) and gudgeon (Gobio gobio), which were predominantly found in the littoral zone in the daytime. The structure of the age-0 fish assemblage was determined primarily by the characteristics of the littoral habitats, i.e. slope steepness and structure, and three different patterns of habitat use were detected among the fish species. To obtain the most comprehensive assessment of a littoral age-0 fish assemblage and to register all species-specific patterns of habitat use, it is necessary that all littoral habitats in the reservoir are sampled during both day and night periods. The boat-modified PASE could be also used as a standard monitoring tool for routine age-0 fish sampling under difficult conditions of steep-sloped shorelines in large inland waterbodies. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2015
Number of the records: 1