Počet záznamů: 1

Seasonal dynamics in population characteristics of European bitterling Rhodeus amarus in a small lowland river

SYSNO ASEP	0358427
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Seasonal dynamics in population characteristics of European bitterling Rhodeus amarus in a small lowland river
Tvůrce(i)	Konečná, Markéta (UBO-W)_{RID, SAI} Reichard, Martin (UBO-W)_{RID, ORCID, SAI, SAI}
Celkový počet autorů	2
Zdroj.dok.	Journal of Fish Biology. - : Wiley - ISSN 0022-1112 Roč. 78, č. 1 (2011), s. 227-239
Poč.str.	13 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	bitterling ; annual life cycle ; ecophysiology ; gonado-somatic index ; lipid content ; somatic condition
Vědní obor RIV	EG - Zoologie
CEP	GA206/09/1163 GA ČR - Grantová agentura ČR
CEZ	AV0Z60930519 - UBO-W (2005-2011)
UT WOS	000286214100015
EID SCOPUS	78651418539
DOI	10.1111/j.1095-8649.2010.02854.x
Anotace	The seasonal dynamics of biological traits in a population of European bitterling Rhodeus amarus from a small river in central Europe (River Kyjovka) were investigated from April 2007 to March 2008. The reproductive season lasted from early April to mid-June, with a peak in late April when >50% of females possessed ripe eggs in their ovaries. The sex ratio was female-biased, with a higher bias following the peak in reproduction, suggesting higher mortality of males than females over the reproductive period. The population was effectively annual, with a major decrease in adult fish abundance at the end of the reproductive period. Highest relative lipid content and condition factor were observed in February, both decreasing with an increase in investment into gonads. Seasonal dynamics in somatic condition, relative lipid content and gonad mass, and their comparison with other R. amarus populations, suggest that the study population allocated a disproportionally high level of resources to reproduction.
Pracoviště	Ústav biologie obratlovců
Kontakt	Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
Rok sběru	2012

Počet záznamů: 1