Number of found documents: 76
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Fish stock assessment of the Petrusplaat Reservoir in 2016, Fish stock assessment of the Honderd en Dertig Reservoir in 2016, Fish stock assessment of the De Gijster Reservoir in 2016
Jůza, Tomáš; Soukalová, Kateřina; Kočvara, Luboš; Prachař, Zdeněk
2017 - English
In 2016, the aim of the complex ichthyological surveys of Petrusplaat, Honderd en Dertig and De Gijster reservoirs was the description of fish community composition and succession with the emphasis put on the abundance and biomass estimates. All important littoral/benthic and pelagic habitats were sampled using the well-established methods (benthic and pelagic gillnets, shore seining and pelagic fry and ichthyoplankton trawling, benthic traps) aiming particularly on the improvement of abundance estimates of gobiid fry. Keywords: fish community composition; succession; biomanipulation Available at various institutes of the ASCR
Fish stock assessment of the Petrusplaat Reservoir in 2016, Fish stock assessment of the Honderd en Dertig Reservoir in 2016, Fish stock assessment of the De Gijster Reservoir in 2016

In 2016, the aim of the complex ichthyological surveys of Petrusplaat, Honderd en Dertig and De Gijster reservoirs was the description of fish community composition and succession with the emphasis ...

Jůza, Tomáš; Soukalová, Kateřina; Kočvara, Luboš; Prachař, Zdeněk
Biologické centrum, 2017

Fish stock assessment of the Petrusplaat Reservoir in 2015, Fish stock assessment of the Honderd en Dertig Reservoir in 2015.
Jůza, Tomáš; Soukalová, Kateřina; Kočvara, Luboš; Prachař, Zdeněk
2016 - English
The report (1) summarizes the results of the complex ichthyological survey of the Petrusplaat Reservoir in 2015. Species composition, abundances, biomasses and age composition of fish were investigated based on gillnets, seine nets, trap nets and trawl catches. Obtained results were also compared with data from previous surveys. The report (2) summarizes the results of the complex ichthyological survey of the Honderd en Dertig Reservoir in 2015. Species composition, abundances, biomasses and age composition of fish were investigated based on gillnets, seine nets, trap nets and trawl catches. Obtained results were also compared with data from previous surveys. Keywords: Biesbosch Reservoirs; round goby; perch; gillnetting; seining; trawling Available at various institutes of the ASCR
Fish stock assessment of the Petrusplaat Reservoir in 2015, Fish stock assessment of the Honderd en Dertig Reservoir in 2015.

The report (1) summarizes the results of the complex ichthyological survey of the Petrusplaat Reservoir in 2015. Species composition, abundances, biomasses and age composition of fish were ...

Jůza, Tomáš; Soukalová, Kateřina; Kočvara, Luboš; Prachař, Zdeněk
Biologické centrum, 2016

The anti-oxidative stress response in Drosophila malanogaster involvement of adipokinetic hormone and adenosine
Zemanová, Milada; Kodrík, Dalibor
2016 - English
The anti-oxidative stress response was studied in Drosophila melanogaster larvae and adults with mutation in genes of adipokinetic hormone (Akh), and adenosine receptor (AdoR(1)), and both these genes together (Akh(1) AdoR1 double mutant). To elicit the oxidative stress we administered paraquat (PQ) in food. Mortality tests revealed the double mutant Akh(1) AdoR(1) was more sensitive to PQ toxicity than either of the single mutants. The PQ administration significantly increased the Drome-AKH hormone level in control w(1118) and AdoR(1) larvae. On the contrary, PQ significantly increased expression of glutathione S-transferase D1 (GstD1) gene. It seems that both functional adenosine receptor and AKH itself are important for the proper control of the GstD1 gene expression under oxidative stress. On the other hand, differences in glutathione S-transferase (GST) activity among the strains, and between untreated and PQ treated groups were minimal. Next, the glutathione (GSH) level was significantly lower in all untreated mutant groups as compared with untreated control w1118 flies and declined further when the flies were treated with PQ. Thus, we demonstrated the important role of AKH and adenosine in control of anti-stress response elicited by PQ in D. melanogaster model. Keywords: oxidative stress; AKH; adenosine Available at various institutes of the ASCR
The anti-oxidative stress response in Drosophila malanogaster involvement of adipokinetic hormone and adenosine

The anti-oxidative stress response was studied in Drosophila melanogaster larvae and adults with mutation in genes of adipokinetic hormone (Akh), and adenosine receptor (AdoR(1)), and both these genes ...

Zemanová, Milada; Kodrík, Dalibor
Biologické centrum, 2016

Hydroacoustic assessment of the fish stock in Lake Balaton in 2014
Tušer, Michal; Muška, Milan
2015 - English
The objective of this project was to survey fish assemblage in Lake Balaton using 120 kHz acoustics to estimate fish quantity in open water at night. In addition, the results from this work could further help answer what a proportion of Asian carps might occupy the waters of Lake Balaton based on the resultant size distribution of observed targets. Keywords: hydroacoustics; abundance; biomass; Asian carps Available at various institutes of the ASCR
Hydroacoustic assessment of the fish stock in Lake Balaton in 2014

The objective of this project was to survey fish assemblage in Lake Balaton using 120 kHz acoustics to estimate fish quantity in open water at night. In addition, the results from this work could ...

Tušer, Michal; Muška, Milan
Biologické centrum, 2015

Fish stock assessment of the Petrusplaat Reservoir in 2014
Říha, Milan; Jůza, Tomáš; Vašek, Mojmír; Soukalová, Kateřina; Kočvara, Luboš
2015 - English
The aim of the complex ichthyological survey of Petrusplaat Reservoir in 2014 was the description of fish community composition and succession with the emphasis put on the abundance and biomass estimates. All important littoral/benthic and pelagic habitats were sampled using the well-established methods (benthic and pelagic gillnets, shore seining and pelagic fry trawling) aiming particularly on the improvement of abundance and biomass estimates of large fish. Keywords: fish community composition; succession; biomanipulation Available at various institutes of the ASCR
Fish stock assessment of the Petrusplaat Reservoir in 2014

The aim of the complex ichthyological survey of Petrusplaat Reservoir in 2014 was the description of fish community composition and succession with the emphasis put on the abundance and biomass ...

Říha, Milan; Jůza, Tomáš; Vašek, Mojmír; Soukalová, Kateřina; Kočvara, Luboš
Biologické centrum, 2015

13th Central European Workshop on Soil Zoology, Abstract book
Tajovský, Karel
2015 - English
Keywords: Central Europe; soil zoology; abstracts Available at various institutes of the ASCR
13th Central European Workshop on Soil Zoology, Abstract book

Tajovský, Karel
Biologické centrum, 2015

Fish stock assessment of the De Gijster Reservoir in 2014
Vašek, Mojmír; Jůza, Tomáš; Říha, Milan; Soukalová, Kateřina; Kočvara, Luboš
2015 - English
The aim of the complex ichthyological survey of De Gijster Reservoir in 2014 was the description of fish community composition and succession with the emphasis put on the abundance and biomass estimates. All important littoral/benthic and pelagic habitats were sampled using the well-established methods (benthic and pelagic gillnets, shore seining and pelagic fry trawling) aiming particularly on the improvement of abundance and biomass estimates of large fish. Keywords: fish community composition; succession; biomanipulation Available at various institutes of the ASCR
Fish stock assessment of the De Gijster Reservoir in 2014

The aim of the complex ichthyological survey of De Gijster Reservoir in 2014 was the description of fish community composition and succession with the emphasis put on the abundance and biomass ...

Vašek, Mojmír; Jůza, Tomáš; Říha, Milan; Soukalová, Kateřina; Kočvara, Luboš
Biologické centrum, 2015

Fish stock assessment of the Honderd en Dertig Reservoir in 2014
Jůza, Tomáš; Vašek, Mojmír; Říha, Milan; Soukalová, Kateřina; Kočvara, Luboš
2015 - English
The aim of the complex ichthyological survey of Honderd en Dertig Reservoir in 2014 was the description of fish community composition and succession with the emphasis put on the abundance and biomass estimates. All important littoral/benthic and pelagic habitats were sampled using the well-established methods (benthic and pelagic gillnets, shore seining and pelagic fry trawling) aiming particularly on the improvement of abundance and biomass estimates of large fish. Keywords: fish community composition; succession; biomanipulation Available at various institutes of the ASCR
Fish stock assessment of the Honderd en Dertig Reservoir in 2014

The aim of the complex ichthyological survey of Honderd en Dertig Reservoir in 2014 was the description of fish community composition and succession with the emphasis put on the abundance and biomass ...

Jůza, Tomáš; Vašek, Mojmír; Říha, Milan; Soukalová, Kateřina; Kočvara, Luboš
Biologické centrum, 2015

ECOFIL 2014 Ecology of Fish in Lakes and Reservoirs. Book of Abstracts
Soukalová, Kateřina; Kubečka, Jan
2014 - English
Keywords: fish; ecology; lakes; reservoirs Available at various institutes of the ASCR
ECOFIL 2014 Ecology of Fish in Lakes and Reservoirs. Book of Abstracts

Soukalová, Kateřina; Kubečka, Jan
Biologické centrum, 2014

Study of structure and chemical composition of soil humic substances isolated from humic podzol
Enev, V.; Klučáková, M.; Novák, František
2014 - English
The aim of this work was study chemical composition and structure of soil humic substances (HS). Object of our study were three samples HS which were isolated from Humic Podzol (locality Krkonoše, Czech Republic). Isolation of HS was performed according to the procedure recommended by the International Humic Substances Society. All samples of HS were characterized by elemental analysis (EA), ultraviolet-visible spectroscopy (UV/Vis), infrared spectroscopy (FTIR) and steady-state fluorescence spectroscopy. Absorption coefficients (E.sub.ET./sub./E.sub.BZ./sub., E.sub.2./sub./E.sub.3./sub. and E.sub.4./sub./E.sub.6./sub.) of HS were calculated from the absorbance values. Fluorescence coefficients (Milori index and Zsolnay index) of HS were calculated from the area of the emission spectra. Keywords: structure; chemical composition; soil humic substances; humic podzol Available at various institutes of the ASCR
Study of structure and chemical composition of soil humic substances isolated from humic podzol

The aim of this work was study chemical composition and structure of soil humic substances (HS). Object of our study were three samples HS which were isolated from Humic Podzol (locality Krkonoše, ...

Enev, V.; Klučáková, M.; Novák, František
Biologické centrum, 2014

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