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Pelagic underyearling communities in a canyon-shaped reservoir in late summer
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SYSNO ASEP 0328078 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Pelagic underyearling communities in a canyon-shaped reservoir in late summer Author(s) Jůza, Tomáš (BC-A) RID, ORCID
Vašek, Mojmír (BC-A) RID, ORCID
Kubečka, Jan (BC-A) RID, ORCID
Seďa, Jaromír (BC-A) RID
Matěna, Josef (BC-A) RID
Prchalová, Marie (BC-A) RID, ORCID
Peterka, Jiří (BC-A) RID, ORCID
Říha, Milan (BC-A) RID, ORCID
Jarolím, Oldřich (BC-A)
Tušer, Michal (BC-A) RID, ORCID
Kratochvíl, Michal (BC-A)
Čech, Martin (BC-A) RID, ORCID
Draštík, Vladislav (BC-A) RID, ORCID
Frouzová, Jaroslava (BC-A) RID, ORCID
Hohausová, Eva (BC-A)
Žaloudík, Jiří (BC-A)Source Title Journal of Limnology. - : PagePress - ISSN 1129-5767
Roč. 68, č. 2 (2009), s. 304-314Number of pages 11 s. Language eng - English Country IT - Italy Keywords fry community ; spatial distribution ; fry trawling ; environmental factors ; reservoir morphology Subject RIV DA - Hydrology ; Limnology R&D Projects 1QS600170504 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA206/07/1392 GA ČR - Czech Science Foundation (CSF) GA206/06/1371 GA ČR - Czech Science Foundation (CSF) GP206/06/P418 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000268778300013 DOI 10.3274/JL09-68-2-13 Annotation The community of pelagic fish fry present during late summer was studied in the canyon-shaped and eutrophic Římov Reservoir, using nighttime trawling over seven years. A pronounced spatial gradient in the distribution of fry was observed in the reservoir in all years, with the highest densities in the upstream area and the lowest densities near the dam. Occurrence of cyprinids was highest in the upper area, while percid fry were distributed more regularly throughout the horizontal gradient from the lower to upper areas of the reservoir. Vertically, the cyprinids were confined almost entirely to the near-surface water layer, whereas the percids dominated in the deeper strata (3-6 m depth) in all years investigated. Catches in the deepest layer sampled (between 6 and 9 meters) were only sporadic. The longitudinal gradient of fry density seems to be a result of reservoir morphology (a gradient of the relative volume of the littoral) rather than other limiting biotic or abiotic factors. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2010
Number of the records: 1