Search Results - "Matěna, Josef"

Desiccation resistance of Chironomid larvae by Frouz, Jan, Matěna, Josef

“…Resistance to desiccation in larvae of eight species of aquatic, semiaquatic and terrestrial chironomids (Pseudodiamesa branickii, Macropelopia sp., Prodiamesa…”
Get full text

A simple fish-based approach to assess the ecological quality of freshwater reservoirs in Central Europe by Blabolil, Petr, Říha, Milan, Ricard, Daniel, Peterka, Jiří, Prchalová, Marie, Vašek, Mojmír, Čech, Martin, Frouzová, Jaroslava, Jůza, Tomáš, Muška, Milan, Tušer, Michal, Draštík, Vladislav, Sajdlová, Zuzana, Šmejkal, Marek, Vejřík, Lukáš, Matěna, Josef, Boukal, David S., Ritterbusch, David, Kubečka, Jan

“…The assessment of ecological quality in freshwater ecosystems is a key issue in many countries, but conditions for the development of assessment methodologies…”
Get full text

Diel vertical migrations of age 0+ percids in a shallow, well-mixed reservoir by KRATOCHVÍL, Michal, ČECH, Martin, VAŠEK, Mojmír, KUBEČKA, Jan, HEJZLAR, Josef, MATĚNA, Josef, PETERKA, Jiří, MACHÁČEK, Jiří, SEĎA, Jaromír

“…The distribution of age 0+ percids (perch, Perca fluviatilis and pikeperch, Sander lucioperca) was investigated in a shallow, wellmixed reservoir during a 24-h…”
Get full text

Sexual segregation in European cyprinids: consequence of response to predation risk influenced by sexual size dimorphism by Žák, Jakub, Prchalová, Marie, Šmejkal, Marek, Blabolil, Petr, Vašek, Mojmír, Matěna, Josef, Říha, Milan, Peterka, Jiří, Seďa, Jaromír, Kubečka, Jan

“…Fish respond to predation threat by size/cohort-dependent presence in particular habitats and this may contribute to sexual segregation between habitats in…”
Get full text

Survival strategies of chironomids (Diptera: Chironomidae) living in temporary habitats: a review by Jan FROUZ, Josef MATĚNA, Arshad ALI

“…Many species of chironomids undergo their immature development in habitats that rapidly change in suitability, such as rain pools, phytotelmata, freshly filled…”
Get full text

Pelagic underyearling communities in a canyon-shaped reservoir in late summer by JŮZA, Tomáš, VAŠEK, Mojmír, KUBEČKA, Jan, SEĎA, Jaromír, MATĚNA, Josef, PRCHALOVÁ, Marie, PETERKA, Jiří, ŘÍHA, Milan, JAROLÍM, Oldřich, TUŠER, Michal, KRATOCHVÍL, Michal, ČECH, Martin, DRAŠTÍK, Vladislav, FROUZOVÁ, Jaroslava, HOHAUSOVÁ, Eva, ŽALOUDÍK, Jiří

“…The community of pelagic fish fry present during late summer was studied in the canyon-shaped and eutrophic Římov Reservoir, Czech Republic, using nighttime…”
Get full text

Plankton communities of saline pools in a former coal mining region by Šímová, Iva, Lepšová-Skácelová, Olga, Wotavová, Kateřina, Adámek, Zdeněk, Matěna, Josef

“…We examined the plankton communities of spoil heap saline pools in a former brown coal mining area in the Czech Republic now undergoing revitalization…”
Get full text

Immersion mass marking of pikeperch (Sander lucioperca) larvae in oxytetracycline hydrochloride and its detection using fluorescence microscopy by Blabolil, Petr, Frouzová, Jaroslava, Matěna, Josef, Peterka, Jiří

“…Fish marking is essential to distinguish between stocked and naturally reproduced fish. This procedure is challenging, especially in early life stages…”
Get full text

Stable isotopes and gut contents indicate differential resource use by coexisting asp (Leuciscus aspius) and pikeperch (Sander lucioperca) by Vašek, Mojmír, Eloranta, Antti P., Vejříková, Ivana, Blabolil, Petr, Říha, Milan, Jůza, Tomáš, Šmejkal, Marek, Matěna, Josef, Kubečka, Jan, Peterka, Jiří

“…Differential use of habitat and prey resources is an important mechanism that may allow coexistence of sympatric species. Unlike interactions between smaller…”
Get full text

Who Is Who: An Anomalous Predator-Prey Role Exchange between Cyprinids and Perch by Vejřík, Lukáš, Matějíčková, Ivana, Seďa, Jaromír, Blabolil, Petr, Jůza, Tomáš, Vašek, Mojmír, Ricard, Daniel, Matěna, Josef, Frouzová, Jaroslava, Kubečka, Jan, Říha, Milan, Čech, Martin

“…Piscivory in cyprinids (Cyprinidae) is extremely rare. Specifically, common bream (Abramis brama) and common carp (Cyprinus carpio) are zooplanktivorous fish…”
Get full text

Openness of Fish Habitat Matters: Lake Pelagic Fish Community Starts Very Close to the Shore by Moraes, Karlos, Souza, Allan T., Vašek, Mojmír, Bartoň, Daniel, Blabolil, Petr, Čech, Martin, Santos, Romulo A. dos, Draštík, Vladislav, Holubová, Michaela, Jůza, Tomáš, Kočvara, Luboš, Kolářová, Kateřina, Matěna, Josef, Peterka, Jiří, Říha, Milan, Sajdlová, Zuzana, Šmejkal, Marek, Tsering, Lobsang, Kubečka, Jan

“…Fish communities differ significantly between the littoral and the pelagic habitats. This paper attempts to define the shift in communities between the two…”
Get full text

The true picture of a lake or reservoir fish stock: A review of needs and progress by Kubečka, Jan, Hohausová, Eva, Matěna, Josef, Peterka, Jiří, Amarasinghe, Upali S., Bonar, Scott A., Hateley, Jon, Hickley, Phil, Suuronen, Petri, Tereschenko, Vladimir, Welcomme, Robin, Winfield, Ian J.

“…The conference ‘Fish Stock Assessment Methods for Lakes and Reservoirs: Towards the True Picture of Fish Stock’ (FSAMLR) was held in September 2007 in Ceske…”
Get full text

Benthic communities in inland salinized waters with different salinities and nutrient concentrations and the ecology of Chironomus aprilinus (Diptera: Chironomidae) in the Czech Republic by MATENA, Josef, SIMOVA, Iva, BROM, Jakub, NOVOTNA, Katerina

“…The macrozoobenthos in saline pools at dumps in a former coal mining area was studied over a period of two years. Due to specific environmental conditions…”
Get full text

Feeding behaviour determining differential capture success of evasive prey in underyearling European perch (Perca fluviatilis L.) and roach (Rutilus rutilus (L.)) by Peterka, Jiří, Matěna, Josef

“…The effect of feeding behaviour on the prey capture efficiency of young-of-the-year European perch and roach was investigated in laboratory experiments using…”
Get full text

The influence of the trawl mouth opening size and net colour on catch efficiency during sampling of early fish stages by Jůza, Tomáš, Čech, Martin, Kubečka, Jan, Vašek, Mojmír, Peterka, Jiří, Matěna, Josef

“…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 densities of…”
Get full text

Condition and feeding behaviour of subadult burbot (Lota lota) in riverine and lacustrine environments by Blabolil, Petr, Čech, Martin, Jůza, Tomáš, Kočvara, Luboš, Matěna, Josef, Říha, Milan, Vejřík, Lukáš, Peterka, Jiří

“…The condition and feeding behaviour of burbot, a widespread potamodromous species in riverine and lacustrine environments, were compared in order to evaluate…”
Get full text

Sinusoidal swimming in fishes: the role of season, density of large zooplankton, fish length, time of the day, weather condition and solar radiation by Jarolím, Oldřich, Kubečka, Jan, Čech, Martin, Vašek, Mojmír, Peterka, Jiří, Matěna, Josef

“…The sinusoidal swimming of fish, previously interpreted as foraging behaviour, was studied with respect to season, density of large zooplankton, fish length,…”
Get full text

Littoral age 0+ fish distribution in relation to multi-scale spatial heterogeneity of a deep-valley reservoir by Kratochvíl, Michal, Mrkvička, Tomáš, Vašek, Mojmír, Peterka, Jiří, Čech, Martin, Draštík, Vladislav, Jůza, Tomáš, Matěna, Josef, Muška, Milan, Sed’a, Jaromír, Znachor, Petr, Kubečka, Jan

“…Littoral age 0+ fish were studied with respect to spatio-temporal heterogeneity in the deep-valley Římov Reservoir (Czech Republic) from June to October 2007…”
Get full text

Differences in feeding selectivity and efficiency between young-of-the-year European perch (Perca fluviatilis) and roach (Rutilus rutilus) — field observations and laboratory experiments on the importance of prey movement apparency vs. evasiveness by Peterka, JiřÃ, Josef Matěna

“…Feeding selectivity and efficiency of young-of-the-year European perch and roach were compared under field and laboratory conditions. In laboratory…”
Get full text

The influence of the trawl mouth opening size and net colour on catch efficiency during sampling of early stages of perch (Perca fluviatilis) and pikeperch (Sander lucioperca) in the bathypelagic layer of a canyon-shaped reservoir by Jůza, Tomáš, Čech, Martin, Kubečka, Jan, Vašek, Mojmír, Peterka, Jiří, Kratochvíl, Michal, Frouzová, Jaroslava, Matěna, Josef

“…The efficiency of different sized (0.5m×2m, 1m×2m, 2m×2m, 4m×2m) and coloured (black, white) ichthyoplankton trawl nets was investigated during daytime in the…”
Get full text