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Fish dispersal in a seasonal wetland: influence of anthropogenic structures
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SYSNO ASEP 0343890 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Fish dispersal in a seasonal wetland: influence of anthropogenic structures Author(s) Hohausová, Eva (BC-A)
Lavoy, R. J. (US)
Allen, M. S. (US)Source Title Marine and Freshwater Research. - : CSIRO Publishing - ISSN 1323-1650
Roč. 61, č. 6 (2010), s. 682-694Number of pages 13 s. Action Behaviour and Ecology of Freshwater Fish Event date 22.08.2004-26.08.2004 VEvent location Silkeborg Country DK - Denmark Event type WRD Language eng - English Country AU - Australia Keywords fish dispersal speed ; sedentary and non-migratory species ; minimum passage depth ; freshwater marsh Subject RIV EH - Ecology, Behaviour CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000279106700006 DOI 10.1071/MF09140 Annotation Knowledge of fish dispersal routes in temporary habitats is important for understanding the ecology of species and for conducting conservation. We evaluated fish dispersal in a network of seasonal habitats and a permanent fish source (a lake) in a subtropical wetland, in Florida (May 2002 - May 2003). Fish dispersal routes were influenced by local physical conditions, anthropogenic alterations and fish species and size. Fish from the source dispersed into 9 of the 25 seasonal sites evaluated, via temporarily formed dispersal corridors. Low connection depths along the corridors were a key factor, allowing small-bodied species to travel farther than large-bodied fish. Fish travelled distances of 0,7-4km. Anthropogenic structures both enhanced and blocked fish dispersal routes. We demonstrated extensive opportunistic use by fish of seasonal wetlands. Anthropogenic alterations to the landscape can provide habitat for native fish and also allow dispersal of non-native fish. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2011
Number of the records: 1