Winter diet of great cormorant (Phalacrocorax carbo) on the River Vltava: estimate of size and species composition and potential for fish stock losses

Čech, Martin; Vejřík, Lukáš

Počet záznamů: 1

Winter diet of great cormorant (Phalacrocorax carbo) on the River Vltava: estimate of size and species composition and potential for fish stock losses

1.

SYSNO ASEP	0360692
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Winter diet of great cormorant (Phalacrocorax carbo) on the River Vltava: estimate of size and species composition and potential for fish stock losses
Tvůrce(i)	Čech, Martin (BC-A)_{RID, ORCID} Vejřík, Lukáš (BC-A)_{RID, ORCID}
Zdroj.dok.	Folia zoologica. - : Ústav biologie obratlovců AV ČR, v. v. i. - ISSN 0139-7893 Roč. 60, č. 2 (2011), 129–142
Poč.str.	14 s.
Akce	Czech Ichthyological Conference /XII./
Datum konání	19.05.2010-20.05.2010
Místo konání	Vodňany
Země	CZ - Česká republika
Typ akce	CST
Jazyk dok.	eng - angličtina
Země vyd.	CZ - Česká republika
Klíč. slova	diagnostic bones ; fish withdrawal ; regurgitated pellets ; European chub ; European perch ; grayling ; roach ; ruffe ; Slapy Reservoir ; trout spp.
Vědní obor RIV	EG - Zoologie
CEP	GA206/06/1371 GA ČR - Grantová agentura ČR
	GP206/09/P266 GA ČR - Grantová agentura ČR
	1QS600170504 GA AV ČR - Akademie věd
CEZ	AV0Z60170517 - HBU-Z, BC-A (2005-2011)
UT WOS	000293038500006
Anotace	The winter diet of the great cormorant was studied in three sites on the River Vltava in Vyšší Brod, in Prague and at Slapy Reservoir, Czech Republic. At all three sites, roach (Rutilus rutilus), bream (Abramis brama), bleak (Alburnus alburnus), European chub (Squalius cephalus), European perch (Perca fluviatilis) and ruffe (Gymnocephalus cernuus) made up at least 74.2 % of the cormorants’ diet. A great potential for fish stock losses was identified for the River Vltava at Vyšší Brod and in Prague where the loss of fish due to overwintering great cormorants was estimated to be 22 kg ha–1 and up to 79 kg ha–1 respectively, i.e. belonging among the highest ever published figures for fish withdrawal caused by great cormorants from any inland waters (carp fishponds excluded). Most probably, both great cormorants and anglers are responsible for the decrease in catches of brown trout (Salmo trutta m. fario) and grayling (Thymallus thymallus) from the River Vltava in Vyšší Brod.
Pracoviště	Biologické centrum (od r. 2006)
Kontakt	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Rok sběru	2012

Počet záznamů: 1