Number of the records: 1

Changes in bacterial community composition and microbial activities along the longitudinal axis of two canyon-shaped reservoirs with different inflow loading

SYSNO ASEP	0150575
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Changes in bacterial community composition and microbial activities along the longitudinal axis of two canyon-shaped reservoirs with different inflow loading
Author(s)	Mašín, Michal (HBU-Z) Jezbera, Jan (HBU-Z) Nedoma, Jiří (HBU-Z) Straškrábová, Viera (HBU-Z)_RID Hejzlar, Josef (HBU-Z) Šimek, Karel (HBU-Z)
Source Title	Hydrobiologia. - : Springer - ISSN 0018-8158 Roč. 504, - (2003), s. 99-113
Number of pages	15 s.
Action	Reservoir Limnology and Water Quality /4./
Event date	12.08.2002-16.08.2002
VEvent location	České Budějovice
Country	CZ - Czech Republic
Event type	WRD
Language	eng - English
Country	NL - Netherlands
Keywords	reservoirs ; microbial food webs ; bacterial production and community composition
Subject RIV	EE - Microbiology, Virology
R&D Projects	GA206/99/0028 GA ČR - Czech Science Foundation (CSF)
	GA206/02/0003 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z6017912 - HBU-Z, BC-A
Annotation	Changes in microbial activities and bacterial community composition (BCC) were studied along the longitudinal axes of two reservoirs with contrasting nutrient matter load. The reservoirs showed specific longitudinal changes in plankton communities and BCC shifts. In Orlík reservoir, primary production, bacterial abundance, bacterial production and protozoan bacterivory showed consistant trend of a gradual decrease from the river inflow downstream to the reservoir dam. Shifts in BCC were statistically insignificant. In contrast, the Římov reservoir has a long retention time and its lacustrine area had a limited input of allochthonous organic matter. In Římov the autochthonous processes of primary and bacterial productions were tightly linked and they showed peaks in the middle part of the reservoir. This together with a trend of downstream decreasing nutrient concentrations and increasing protistan grazing pressure seem to support the development of specific BCC in the lacustrine part.
Workplace	Institute of Hydrobiology (until 2005)
Contact	Václava Lavičková, lavickova@hbu.cas.cz, Tel.: 387 775 889
Year of Publishing	2004

Number of the records: 1