Outputs

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

Name of project/author

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,...

09/10/2010

Feeding behaviour determining differential capture success of evasive prey in underyearling European perch (Perca fluviatilis L.) and roach (Rutilus rutilus (L.))

The effect of feeding behaviour on the prey capture efficiency of young-of-the-year European perch and roach was investigated in laboratory...

12/08/2010

Sinusoidal swimming in fishes: the role of season, density of large zooplankton, fish length, time of the day, weather condition and solar radiation

The sinusoidal swimming of fish, previously interpreted as foraging behaviour, was studied with respect to season, density of large zooplankton, fish...

17/06/2010

Spatial and temporal changes in phosphorus partitioning within a freshwater cyanobacterial mat community

Spatial and temporal changes in phosphorus (P) distribution, partitioning and mobility in the benthic cyanobacterial mat (CBM) were evaluated using...

12/04/2010

Deep spawning of perch (Perca fluviatilis, L.) in the newly created ChabaA (TM) ovice Lake, Czech Republic

The egg strands of perch were found at up to a depth of 20.2 m and, on average, 88% of perch spawning activity occurred at depths greater than 3 m....

18/03/2010

The influence of the trawl mouth opening size and net colour on catch efficiency during sampling of early fish stages

The efficiency of different sized (0.5 m × 2 m, 1 m × 2 m, 2 m × 2 m, 4 m × 2 m) and coloured (black, white) ichthyoplankton trawl nets and the...

07/01/2010

Fish activity as determined by gillnet catch: A comparison of two reservoirs of different turbidity

Fish activity was monitored analyzing the catches of gillnets exposed for short time intervals at night. Experiments were done in two Central...

30/10/2009

Electrical properties of flash-evaporated carbon nanolayers on PTFE

Potential application of flash-deposited carbon layers depends crucially on their mechanical properties. For applications in electron microscopy the...

15/09/2009

Utricularia carnivory revisited: plants supply photosynthetic carbon to traps

The rootless, aquatic Utricularia species belong to the largest and most cosmopolitan carnivorous plant genus. Populations of Utricularia plants are...

26/08/2009

Au-nanoparticles grafted on plasma treated PE

Polyethylene (PE) surface was treated with At plasma. Activated surface was grafted from methanol solution of 1,2-ethanedithiol. Then the sample was...

03/05/2009

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

The distribution of egg strands of perch Perca fluviatilis was studied in relation to water depth and spawning substrate during late April and early...

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...

09/03/2009

Characterization of carbon nanolayers flash evaporated on PET and PTFE

Carbon nanolayers were prepared by flash evaporation of carbon filaments onto polyethyleneterephthalate and polytetrafluoroethylene substrates. The...

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...

10/09/2008

Size selectivity of standardized multimesh gillnets in sampling coarse European species

We studied gillnet selectivity by using a direct method to compare fish-size distributions from gillnet catches (Nordic type, mesh size range 5–135...

10/09/2008

The true picture of a lake or reservoir fish stock: A review of needs and progress

The conference ‘Fish Stock Assessment Methods for Lakes and Reservoirs: Towards the True Picture of Fish Stock’ (FSAMLR) was held in September...