Outputs

Find our projects, facilities, lectures, publications, presentations, patents, grants, events and news

Name of project/author

25/01/2013

Carbon coatings on polymers and their biocompatibility

In this paper we modified the surface properties of polymer foils (polyethyleneterephthalate (PET) and polytetrafluoroethylene (PTFE)) by flash...

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...

21/11/2012

What do results of common sequential fractionation and single-step extractions tell us about P binding with Fe and Al compounds in non-calcareous sediments?

Correct identification of P forms together with their main Fe and Al binding partners in non-calcareous sediments is of crucial importance for...

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...

30/08/2012

Surface properties of carbon structures evaporated on polytetrafluoroethylene

Carbon layers were deposited by flash evaporation from carbon fiber on polytetrafluoroethylene (PTFE). The layer thickness, surface roughness, and...

01/08/2012

Light as a factor affecting the concentration of simple organics in the traps of aquatic carnivorous Utricularia species

Rootless aquatic carnivorous Utricularia plants exude significant amounts of photosynthates into the trap fluid, where they have been shown to...

01/08/2012

Characterization and Cytocompatibility of Carbon Films

Carbon layers on polyethyleneterephtalate (PET) backing were prepared by 3 different deposition methods as evaporation, sputtering and photo induced...

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...

10/06/2012

Littoral age 0+ fish distribution in relation to multi-scale spatial heterogeneity of a deep-valley reservoir

Littoral age 0+ fish were studied with respect to spatio-temporal heterogeneity in the deep-valley Římov Reservoir (Czech Republic) from June to...

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...

02/04/2012

Post-spawning dispersal of tributary spawning fish species to a reservoir system

This study investigated the post-spawning dispersal of seven species occurring in a tributary of the Římov Reservoir during the years 2000-2004....

19/01/2012

The use of artificial spawning substrates in order to understand the factors influencing the spawning site selection, depth of egg strands deposition and hatching time of perch (Perca fluviatilis L.)

The distribution of egg strands of perch Perca fluviatilis and factors affecting this distribution, in terms of spawning sites and spawning depths...

18/10/2011

Location and timing of the deposition of egg strands by perch (Perca fluviatilis L.): the roles of lake hydrology, spawning substrate and female size

The reproduction biology of perch Perca fluviatilis was studied in relation to lake hydrology, spawning substrate and female size using SCUBA divers...

12/07/2011

Ecological implications of organic carbon dynamics in the traps of aquatic carnivorous Utricularia plants

Rootless aquatic carnivorous Utricularia exude up to 25% of their photosynthates into the trap lumen, which also harbours a complex microbial...

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...

16/11/2010

A model of gillnet catch in relation to the catchable biomass, saturation, soak time and sampling period

We developed a new approach for evaluating gillnet catches. A model of a gillnet catch was built to differentiate the effects of gillnet saturation,...