Diversity Day 2018 Photogallery
Ohlédnutí za netradičním biologickým happeningem v trávě na zahradě Biologického centra AV ČR, na Sádkách: Objektivem Tomáše...
21/05/2018
15/10/2017
Seasonal and Spatial Dynamics of Gas Ebullition in a Temperate Water-Storage Reservoir
Gas ebullition of river impoundments plays an increasingly significant role, particularly in transporting methane CH4 from their sediments to the...
24/02/2017
Optimal gillnet sampling design for the estimation of fish community indicators in heterogeneous freshwater ecosystems
Monitoring of biota in heterogeneous ecosystems requires sampling in different habitats and across environmental gradients. The resulting...
29/12/2015
Fish community response to the longitudinal environmental gradient in Czech deep-valley reservoirs: Implications for ecological monitoring and management
Ecological quality assessment of non-natural water bodies is, in contrast to natural systems, less developed and requires determining biological...
23/10/2015
Pelagic occurrence and diet of invasive round goby Neogobius melanostomus (Actinopterygii, Gobiidae) juveniles in deep well-mixed European reservoirs
Round goby is generally accepted to be a typical benthic dwelling fish species both in its native and invasive ranges. Nevertheless, mid-water night...
25/07/2015
Fish behaviour in response to a midwater trawl footrope in temperate reservoirs
This study addresses fish behaviour at the mouth of a midwater trawl in two temperate reservoirs. Fish distribution and behaviour were monitored...
17/06/2015
Species-specific gradients of juvenile fish density and size in pelagic areas of temperate reservoirs
Data from nine reservoirs in the Czech Republic were used to investigate density and size distribution patterns for dominant fish species of the...
03/12/2014
Patterns in diel habitat use of fish covering the littoral and pelagic zones in a reservoir
We investigated diel habitat use of fish covering the littoral and pelagic zones of the Římov Reservoir (Czech Republic) and analyzed the influence...
08/11/2013
Chaos and stability of age-0 fish assemblages in a temperate deep reservoir: unpredictable success and stable habitat use
Large year-to-year variability in different fish species recruitment has been confirmed by previous studies while diurnal patterns of occupation in...
15/12/2012
To migrate, or not to migrate: partial diel horizontal migration of fish in a temperate freshwater reservoir
The diel horizontal migration (DHM) of fish between the inshore and offshore zones of the Římov Reservoir (Czech Republic, deep, stratified,...
26/11/2012
A simple method to correct the results of acoustic surveys for fish hidden in the dead zone
In lentic freshwater systems, vertical acoustics may underestimate fish abundance in the acoustic dead zone where fish detection capability is...
08/05/2012
The size selectivity of the main body of a sampling pelagic pair trawl in freshwater reservoirs during the night
The aim of this study was to test the selectivity of a trawl main body, especially for small fish, during night sampling. The tested trawl had a mesh...
14/06/2011
The influence of diel period on fish assemblage in the unstructured littoral of reservoirs
Diel changes in littoral fish assemblage were studied in four reservoirs in the Czech Republic (Central Europe). The sampling was performed by beach...
08/04/2009
Hydroacoustic estimates of fish stocks in temperate reservoirs: day or night surveys?
Day and night acoustic surveys were used to compare fish stock estimates at eight European reservoirs and one flooded mining pit. During both...
03/03/2009
Long-term development of fish populations in the Rimov Reservoir
The inshore fish community of the Římov Reservoir in the Czech Republic was evaluated over 21 years using shore seining at night. The development...
03/12/2008
Dependence of beach seine net efficiency on net length and diel period
The aim of this study was to quantify the efficiency of different lengths of beach seine nets for each diel period in freshwater reservoirs. Only...
19/11/2008
The effect of depth, distance from dam and habitat on spatial distribution of fish in an artificial reservoir
Spatial distribution of the fish community in the deep canyon-shaped Římov Reservoir, Czech Republic, was studied using overnight gillnetting...
08/07/2008
Distribution patterns of fishes in a canyon-shaped reservoir
In August 2004 and 2005, an extensive study of the fish community was carried out in the largest water supply reservoir in the Czech Republic and...