Počet záznamů: 1

Species-specific gradients of juvenile fish density and size in pelagic areas of temperate reservoirs

SYSNO ASEP	0443153
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Species-specific gradients of juvenile fish density and size in pelagic areas of temperate reservoirs
Tvůrce(i)	Jůza, Tomáš (BC-A)_{RID, ORCID} Ricard, Daniel (BC-A)_RID Blabolil, Petr (BC-A)_{RID, ORCID} Čech, Martin (BC-A)_{RID, ORCID} Draštík, Vladislav (BC-A)_{RID, ORCID} Frouzová, Jaroslava (BC-A)_{RID, ORCID} Muška, Milan (BC-A)_{RID, ORCID} Peterka, Jiří (BC-A)_{RID, ORCID} Prchalová, Marie (BC-A)_{RID, ORCID} Říha, Milan (BC-A)_{RID, ORCID} Sajdlová, Zuzana (BC-A)_{RID, ORCID} Šmejkal, Marek (BC-A)_{RID, ORCID} Tušer, Michal (BC-A)_{RID, ORCID} Vašek, Mojmír (BC-A)_{RID, ORCID} Vejřík, Lukáš (BC-A)_{RID, ORCID} Kubečka, Jan (BC-A)_{RID, ORCID}
Zdroj.dok.	Hydrobiologia. - : Springer - ISSN 0018-8158 Roč. 762, č. 1 (2015), s. 169-181
Poč.str.	13 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	trawling ; juvenile density ; horizontal distribution ; vertical distribution ; tributary area
Vědní obor RIV	EH - Ekologie - společenstva
CEP	EE2.3.20.0204 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
	EE2.3.30.0032 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
	7F14316 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Institucionální podpora	BC-A - RVO:60077344
UT WOS	000364635100014
EID SCOPUS	84946495731
DOI	10.1007/s10750-015-2346-6
Anotace	Data from nine reservoirs in the Czech Republic were used to investigate density and size distribution patterns for dominant fish species of the juvenile pelagic community at night. Clear trends of increasing density along the longitudinal gradient for bream, roach, bleak, and pikeperch were observed in long ([5 km) reservoirs but were absent in short reservoirs. Increasing body size towards the tributary was observed for bream, perch, pikeperch, and ruffe. Cyprinids showed a clear affinity to the surface layer (0–3 m) of long reservoirs, while pikeperch and ruffe juveniles occurred homogeneously at depths down to six meters. Perch juveniles had the highest densities especially in 3–6 m water layer. Size did not change with sampling depth for any species in the reservoirs studied. Our data showed gentle spatial segregation of different juvenile fish species. Although the tributary area is usually the most productive, it is not able to support all juveniles leading to inter- and intra-specific competition and the relegation of juveniles of some species to less productive habitat. This trend was more apparent in long reservoirs with strong trophic gradients. The gradient of nutrients seems to be an important factor driving fish distribution along longitudinal profile of reservoirs.
Pracoviště	Biologické centrum (od r. 2006)
Kontakt	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Rok sběru	2016

Počet záznamů: 1