Number of the records: 1
Impact of flood on distribution of bathypelagic perch fry layer along the longitudinal profile of large canyon-shaped reservoir
- 1.
SYSNO ASEP 0086618 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Impact of flood on distribution of bathypelagic perch fry layer along the longitudinal profile of large canyon-shaped reservoir Title Vliv povodně na rozmístění vrstvy bathypelagického plůdku okouna na podélném profilu velké kaňonovité nádrže Author(s) Čech, Martin (BC-A) RID, ORCID
Kubečka, Jan (BC-A) RID, ORCID
Frouzová, Jaroslava (BC-A) RID, ORCID
Draštík, Vladislav (BC-A) RID, ORCID
Kratochvíl, Michal (BC-A)
Jarošík, Jiří (BC-A)Source Title Journal of Fish Biology. - : Wiley - ISSN 0022-1112
Roč. 70, č. 4 (2007), s. 1109-1119Number of pages 11 s. Action Annual Meeting of the American Fisheries Society /136/ Event date 10.09.2006-14.09.2006 VEvent location Lake Placid Country US - United States Event type WRD Language eng - English Country GB - United Kingdom Keywords Orlík Reservoir ; shoaling ; echosounder ; cyprinids ; Perca fluviatilis ; Sander lucioperca Subject RIV EG - Zoology R&D Projects GA206/06/1371 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) Annotation Previous studies have shown that in normal spring conditions, the layer of bathypelagic perch Perca fluviatilis fry (BPF) is equally distributed along most of the longitudinal profile of reservoirs. Flood hitting the Orlík Reservoir (Czech Republic) completely flushed the existing fry community out from the 31 km long riverine part of the reservoir. The pelagic zone in this reach was then recolonized by cyprinid fry being of either littoral or riverine origin. Subsequently, the BPF layer was recorded only in the 22 km long lacustrine part of the reservoir. In the upper reach of this part where water current slowed down in large volume and fry originated from both riverine and central part of the reservoir flocked in high numbers, two distinct BPF layers were observed. The results from acoustic survey and complementary net catches suggest that no epipelagic perch fry were found in the reservoir where thermal stratification had been destroyed by flooding and windy weather. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2008
Number of the records: 1