Diversity Day 2018 Photogallery
Ohlédnutí za netradičním biologickým happeningem v trávě na zahradě Biologického centra AV ČR, na Sádkách: Objektivem Tomáše...
21/05/2018
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...
22/12/2016
Distribution of Herbivorous Fish Is Frozen by Low Temperature
The number of herbivores in populations of ectothermic vertebrates decreases with increasing latitude. At higher latitudes, fish consuming plant...
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...
15/08/2015
Predicting asp and pikeperch recruitment in a riverine reservoir
Fish recruitment in riverine reservoirs is not fully understood because the long-term data series required for standard stock–recruitment models...
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...
04/06/2015
An assessment of the ecological potential of Central and Western European reservoirs based on fish communities
In this study we developed a novel methodology based on fish communities to assess the ecological potential of central European reservoirs. Using the...
20/03/2015
Biomass and Abundance Biases in European Standard Gillnet Sampling
The European Standard EN 14757 recommends gillnet mesh sizes that range from 5 to 55mm (knot-to-knot) for the standard monitoring of fish assemblages...
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...
12/06/2014
Planktonic or non-planktonic food in young-of-the-year European perch Perca fluviatilis in ponds
Higher biomass especially of some aquatic macrophyte species offered a higher density of phytophilous zoobenthos, but did not increase the proportion...
12/02/2014
Towards a better understanding of small scale distribution of littoral age-0 fish in a deep-valley reservoir: day or night surveys?
The effect of diel period and littoral habitats on the distribution of age-0 fish was tested in a deep-valley reservoir using boat-modified point...
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...
04/11/2013
Occurrence of age-0 year dwarf pikeperch Sander lucioperca in late summer – an overlooked phenomenon in reservoirs
Late summer sampling of pelagic age-0 year fish communities in five Czech reservoirs and one Dutch reservoir revealed extremely small age-0 year...
20/01/2013
The utility of predatory fish in biomanipulation of deep reservoirs
Piscivorous fish may drive trophic cascades and maintain good water quality in lakes and reservoirs. Biomanipulation by stocking piscivores has been...
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,...
10/12/2012
Extremely shallow spawning of perch (Perca fluviatilis L.): the roles of sheltered bays, dense semi-terrestrial vegetation and low visibility in deeper water
The roles of wind protected bays, presence of littoral vegetation and light attenuation in the water column on spawning site selection and depth of...
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...
16/11/2012
Eel attacks-A new tool for assessing European eel (Anguilla anguilla) abundance and distribution patterns with gillnet sampling
Because of its complex life cycle, cryptic behavior, body shape, ability to excrete mucus and excellent maneuvering, the European eel (Anguilla...
12/07/2012
Comparison of Gill Nets and Fixed-Frame Trawls for Sampling Threadfin Shad in Tropical Reservoirs
Threadfin shad Dorosoma petenense populations were sampled quarterly from 2010 to 2011 to determine appropriate sampling techniques for this species...