Number of the records: 1

Distribution of egg strands of perch (.i.Perca fluviatilis./i. L.) with respect to depth and spawning substrate

SYSNO ASEP	0328068
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Distribution of egg strands of perch (Perca fluviatilis L.) with respect to depth and spawning substrate
Title	Rozmístění jikerných pásů okouna říčního (Perca fluviatilis L.) s ohledem na hloubku a třecí substrát
Author(s)	Čech, Martin (BC-A)_{RID, ORCID} Peterka, Jiří (BC-A)_{RID, ORCID} Říha, Milan (BC-A)_{RID, ORCID} Jůza, Tomáš (BC-A)_{RID, ORCID} Kubečka, Jan (BC-A)_{RID, ORCID}
Source Title	Hydrobiologia. - : Springer - ISSN 0018-8158 Roč. 630, č. 1 (2009), s. 105-114
Number of pages	10 s.
Language	eng - English
Country	NL - Netherlands
Keywords	Perca fluviatilis ; SCUBA diving ; spawning substrate ; egg strands ; Chabařovice Lake
Subject RIV	EG - Zoology
R&D Projects	GA206/06/1371 GA ČR - Czech Science Foundation (CSF)
	GP206/09/P266 GA ČR - Czech Science Foundation (CSF)
	1QS600170504 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z60170517 - HBU-Z, BC-A (2005-2011)
UT WOS	000267030500007
DOI	10.1007/s10750-009-9783-z
Annotation	The distribution of egg strands of perch was studied in relation to water depth and spawning substrate in year 2007 in Chabařovice Lake, Czech Republic, using SCUBA divers. The egg strands were significantly deeper in early May compared to late April. Perch used seven different spawning substrates of which the most important were Potamogeton crispus, Artemisia sp. and Phragmites communis. However, while living submerged vegetation, although more abundant, was generally avoided, dead submerged vegetation was strongly preferred. It appears that dead vegetation is an ideal spawning substrate for perch since placement of the egg strands over those hard, complex three-dimensional structures ensures that the eggs remain well oxygenated 24 hours a day. Factors with significant influence on the distribution of egg strands were as follows (in order of decreasing influence): depth of deposition, type of spawning substrate, date of spawning, and temperature at the depth of deposition.
Workplace	Biology Centre (since 2006)
Contact	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Year of Publishing	2010

Number of the records: 1