Počet záznamů: 1
Fish occurrence in the fishpass on the lowland section of the River Elbe, Czech Republic, with respect to water temperature, water flow and fish size
0360390 - BC-A 2012 RIV CZ eng J - Článek v odborném periodiku
Prchalová, Marie - Horký, P. - Slavík, O. - Vetešník, Lukáš - Halačka, Karel
Fish occurrence in the fishpass on the lowland section of the River Elbe, Czech Republic, with respect to water temperature, water flow and fish size.
Folia zoologica. Roč. 60, č. 2 (2011), s. 104-114 ISSN 0139-7893.
[Česká ichtyologická konference /12./. Vodňany, 19.05.2010-20.05.2010]
Grant CEP: GA AV ČR(CZ) 1QS500450513
Výzkumný záměr: CEZ:AV0Z60170517; CEZ:AV0Z60930519
Klíčová slova: migration * fish * water flow * water temperature * fishpass
Kód oboru RIV: DA - Hydrologie a limnologie
Impakt faktor: 0.554, rok: 2011
The effect of water temperature and flow on the migration of fish was observed in the River Elbe (Střekov fishpass, Czech Republic) in 2003 and 2004. The effect was examined separately for immature and adult fish and also the most abundant species (R. rutilus, A. alburnus, Squalius cephalus, G. gobio). The highest levels of fish occurrence in the fishpass were observed during the spring spawning migrations of adults as well as during the late summer and fall migrations of adult and immature fish. While the total number of both fish age categories was significantly related to the interaction of water temperature and flow, however, responses of individual species and age categories differed from each other. Immature fish and small- and middle-sized species required lower values of water flow than adult fish or large species. The exception was G. gobio, which required higher values of flow for its migration, a feature that could be related to its bottom dwelling nature or rheophily.
Trvalý link: http://hdl.handle.net/11104/0197958