Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Michal Kratochvíl"'
Autor:
Jaromír SEĎA, Jiří MACHÁČEK, Jiří PETERKA, Josef MATĚNA, Josef HEJZLAR, Jan KUBEČKA, Mojmír VAŠEK, Michal KRATOCHVÍL, Martin ČECH
Publikováno v:
Journal of Limnology, Vol 69, Iss 2, Pp 305-310 (2010)
The distribution of age 0+ percids (perch, Perca fluviatilis and pikeperch, Sander lucioperca) was investigated in a shallow, wellmixed reservoir during a 24-h period in late May, using acoustic and netting methods. Diel vertical migrations (DVMs) we
Externí odkaz:
https://doaj.org/article/6eceb2e2edda47c2b7d5868872069703
Autor:
Jiří ŽALOUDÍK, Jaroslava FROUZOVÁ, Vladislav DRAŠTÍK, Martin ČECH, Michal KRATOCHVÍL, Michal TUŠER, Oldřich JAROLÍM, Milan ŘÍHA, Jiří PETERKA, Marie PRCHALOVÁ, Josef MATĚNA, Jaromír SEĎA, Jan KUBEČKA, Mojmír VAŠEK, Eva HOHAUSOVÁ, Tomáš JŮZA
Publikováno v:
Journal of Limnology, Vol 68, Iss 2, Pp 304-314 (2009)
The community of pelagic fish fry present during late summer was studied in the canyon-shaped and eutrophic Římov Reservoir, Czech Republic, using nighttime trawling over seven years. Cyprinid fish dominated in the open water area throughout the pe
Externí odkaz:
https://doaj.org/article/bdee316328f74f1d8d4665c07e967a36
Autor:
Jan Kubečka, Jiří Peterka, Michal Kratochvíl, Vladislav Draštík, Tomáš Jůza, Milan Muška, Milan Říha, Lukáš Vejřík, Martin Čech
Publikováno v:
Journal of Limnology, Vol 71, Iss 1, Pp e18-e18 (2012)
The distribution of egg strands of perch Perca fluviatilis and factors affecting this distribution, in terms of spawning sites and spawning depths used, was studied in spring 2010 in Chabařovice Lake, Czech Republic, using areas with an artificial s
Externí odkaz:
https://doaj.org/article/d1c799a2507e4dc8bf5533d545d1e022
Publikováno v:
Organic & Biomolecular Chemistry. 20:7613-7621
Modification of the carbohydrate scaffold is an important theme in drug and vaccine discovery. Therefore, the preparation of novel types of glycomimetics is of interest in synthetic carbohydrate chemistry. In this manuscript, we present an early inve
Autor:
Lukáš Vejřík, Michal Tušer, Petr Blabolil, Milan Říha, Tomáš Jůza, Petr Znachor, Martin Čech, Marek Šmejkal, Jan Kubečka, Jaroslava Frouzová, Zuzana Sajdlová, Jiří Peterka, Vladislav Draštík, Mojmír Vašek, Michal Kratochvíl, Milan Muška, Jaromír Seďa, Marie Prchalová, Tomáš Mrkvička
Publikováno v:
Ecological Indicators. 63:219-230
Ecological quality assessment of non-natural water bodies is, in contrast to natural systems, less developed and requires determining biological indicators that reliably reflect environmental conditions and anthropogenic pressures. This study was mot
Autor:
Jaroslava Frouzová, Jan Kubečka, Michal Tušer, Vladislav Draštík, Martin Čech, Tomáš Mrkvička, Jiří Peterka, Mojmír Vašek, Milan Muška, Michal Kratochvíl, Milan Říha, Tomáš Jůza, Petr Blabolil, Helge Balk, Zuzana Sajdlová
Publikováno v:
Fisheries Research. 172:105-113
This study addresses fish behaviour at the mouth of a midwater trawl in two temperate reservoirs. Fish distribution and behaviour were monitored using a SIMRAD EK60 (38 kHz) split-beam echosounder with the transducer deployed at the water surface, at
Publikováno v:
Carbohydrate Research. 496:108086
A straightforward and scalable method for the synthesis of protected 2-hydroxyglycals is described. The approach is based on the chlorination of carbohydrate-derived hemiacetals, followed by an elimination reaction to establish the glycal moiety. 1,2
Autor:
Vladislav Draštík, Josef Wanzenböck, Mojmír Vašek, Martin Bláha, Jiří Peterka, Milan Muška, Daniel Ricard, Marie Prchalová, Michal Kratochvíl, Jan Kubečka, Jaromír Seďa, Milan Říha, Michal Tušer, Tomáš Jůza, Petr Blabolil, Tomáš Mrkvička, Martin Čech
Publikováno v:
Hydrobiologia. 747:111-131
We investigated diel habitat use of fish covering the littoral and pelagic zones of the Řimov Reservoir (Czech Republic) and analyzed the influence of predator presence and of shifting feeding habitats in all dominant species and age groups. Our sam
Autor:
Jiří Peterka, Vladislav Draštík, Josef Matěna, Jan Kubečka, Tomáš Jůza, Mojmír Vašek, Milan Muška, Martin Čech, Michal Kratochvíl
Publikováno v:
Hydrobiologia. 728:125-139
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 abundance sampling by electrofishing (PASE). Day and night samplings unveiled differences in abundance o
Autor:
Michal Tušer, Milan Říha, Marie Prchalová, Mojmír Vašek, Jaroslava Frouzová, Milan Muška, Vladislav Draštík, Michal Kratochvíl, Jan Kubečka, Martin Čech, Petr Blabolil, Tomáš Jůza, Jiří Peterka
Publikováno v:
Hydrobiologia. 724:217-234
Large year-to-year variability in different fish species recruitment has been confirmed by previous studies while diurnal patterns of occupation in two basic reservoir habitats (pelagic and littoral) by different age-0 fish species in late summer are