25th Mustelid colloquium, 4-7 October 2007, Třeboň, Czech Republic
Hájková, Petra; Růžičková, O.
2007 - English The 25th Mustelid Colloquium was held in Třeboň, Czech Republic, on 4-7 October 2007. The meeting was organized by Czech Otter Foundation Fund, Agency for Nature Conservation and Landscape Protection of the Czech Republic, and the Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic. Nearly 100 participants from 21 countries presented 45 talks and 28 posters dealing with all European mustelid species, except the marbled polecat. The main topics included distribution and demography, monitoring and assessment techniques, road mortality, conservation and management, genetics, habitat use, diet, and behaviour. Within the colloquium, also the workshop „How to assess the conservation status of otters in context of EU legislation?“ took place. Ve dnech 4.-7. října 2007 se v Třeboni (ČR) konalo 25. mezinárodní kolokvium o lasicovitých šelmách. Setkání bylo organizováno Českým nadačním fondem pro vydru, Agenturou ochrany přírody a krajiny ČR a Ústavem biologie obratlovců AV ČR. Konference se zúčastnilo téměř 100 účastníků z 21 krajin, kteří prezentovali 45 přednášek a 28 posterů zabývajících se všemi evropskými druhy z čeledi lasicovité, kromě tchoříka skvrnitého. Hlavními tématy byly rozšíření a demografie, monitoring a výzkumní metody, silniční mortalita, ochrana a management, genetika, využívání prostředí, potravní ekologie a etologie. V rámci kolokvia se uskutečnil také workshop „Jak hodnotit stav populací vydry říční v kontextu legislativy EU?“. Keywords: European mustelid species Available at various institutes of the ASCR 25th Mustelid colloquium, 4-7 October 2007, Třeboň, Czech Republic

The 25th Mustelid Colloquium was held in Třeboň, Czech Republic, on 4-7 October 2007. The meeting was organized by Czech Otter Foundation Fund, Agency for Nature Conservation and Landscape Protection ...

Hájková, Petra; Růžičková, O.
Ústav biologie obratlovců, 2007

8th Workshop of the Southeastern European Bird Migration Network (SEEN)
2006 - English Sborník zahrnuje program a abstrakty příspěvků prezentovaných na 8. workshopu SEEN (Southeastern European Bird Migration Network), jenž se konal v únoru 2006 v Praze. Semináře se zúčastnilo celkem 46 badatelů z Evropy a Blízkého Východu, kteří přednesli nejnovější výsledky svých výzkumů migrace ptáků. The booklet includes the programme and abstracts of contributions presented at the 8th SEEN Workshop in Prague, Czech Republic in February 2006. In total, 46 participants from Europe and the Middle East took part in this meeting and presented results of their recent studies in avian migrations. Keywords: bird migration; migrace; sborníky Available at various institutes of the ASCR 8th Workshop of the Southeastern European Bird Migration Network (SEEN)

Sborník zahrnuje program a abstrakty příspěvků prezentovaných na 8. workshopu SEEN (Southeastern European Bird Migration Network), jenž se konal v únoru 2006 v Praze. Semináře se zúčastnilo celkem 46 ...

Ústav biologie obratlovců, 2006

Perch (Perca fluviatilis L.) diet during the flooding period of the Chabařovice coal mining pit (North-West Bohemia, Czech Republic)
Adámek, Zdeněk; Jurajda, Pavel; Musil, J.; Janáč, Michal; Kabilka, P.; Polačik, Matej; Ťuk, J.; Valová, Zdenka; Zeman, J.
2006 - English The Chabařovice coal mining pit (Chabařovice lake) is currently still under the process of continuous flooding and its area increased up to 174 ha since 2001. The inflow water originates from surface waterbodies and hence the penetration of fish species, undesirable with respect to biomanipulation efforts, makes a serious problem in fisheries management of the lake. Adult perch have been the most numerous fish of the lake until 2004. Current perch population consists of one cohort (7+ - 8+) originating from the recruitment of two subsequent year classes. The food bulk of adult perch consisted of benthic animals and zooplankton in both years under study, however their proportion differed significantly. In 2004, dragon fly nymphs were the dominant food items with 58.80% proportion, followed by cladocerans Daphnia sp., which made up 23.82% of food ingested. In 2005, chironomid larvae prevailed in the food bulk with 41.95% and the diversity of ingested food items was obviously wider. Důlní propadlina Chabařovice je v současné době postupně napouštěna a její plocha se od roku 2001 trvale zvyšuje na stávajících 174 ha. Voda přítoku pochází z povrchových zdrojů a vnikání některých druhů ryb, nežádoucích s ohledem na biomanipulační snahy, se tak stává závažným problémem pro rybářský management nádrže. Adultní okoun byl nejpočetnější rybou nádrže až do roku 2004 a jeho současná populace je tvořena v podstatě pouze dvěma věkovými kohortami (7+ - 8+), které pocházejí ze dvou následných úspěšných výtěrů. Potravu okouna na nádrži tvoří především bentičtí (fytofilní) bezobratlí a zooplankton (Daphnia), ale jejich zastoupení se v průběhu dvou period sledování lišilo. V roce 2004 převládaly larvy vážek (Libellula quadrilineata a Coenagrion puella) s podílem 58.80%, následované perloočkami Daphnia sp., které tvořily až 23.82% přijaté potravy. V roce 2005 byly hlavními potravními organismy larvy pakomárů (41.95%) a diverzita konzumovaných organizmů se významně zvýšila. Keywords: perch; Chabařovice lake; biomanipulation; food Available at various institutes of the ASCR Perch (Perca fluviatilis L.) diet during the flooding period of the Chabařovice coal mining pit (North-West Bohemia, Czech Republic)

The Chabařovice coal mining pit (Chabařovice lake) is currently still under the process of continuous flooding and its area increased up to 174 ha since 2001. The inflow water originates from surface ...

Adámek, Zdeněk; Jurajda, Pavel; Musil, J.; Janáč, Michal; Kabilka, P.; Polačik, Matej; Ťuk, J.; Valová, Zdenka; Zeman, J.
Ústav biologie obratlovců, 2006

New approach to phytophilous macroinvertebrates sampling in emergent littoral vegetation
Sychra, Jan; Adámek, Zdeněk
2006 - English The aim of the study was to design the sampling method for collection of phytophilous macroinvertebrates associated with submersed parts of hard emergent littoral vegetation in still waters, which will join technical sampler unpretentiousness, sampling simplicity and maximal quantitative accuracy. For these purposes, we developed a modified Gerking´s frame box sampler with movable cutter for sampling of animals in the littoral macrophyte beds and a new type of core sampler for collection of animals inhabiting the root zone of emergent plant beds. Both sampling devices are suitable for studies targeted on macroinvertebrates monitoring. The comparative sampling using frame box sampler and benthos handnet was performed in the littoral of three carp ponds. The sampling procedure utilizing the frame sampler was more labour demanding however it enabled significantly (P < 0.05) more efficient collection of slowly moving or sedentary animals. Cílem studie bylo vyvinout takovou metodu vzorkování fytofilních bezobratlých kolonizujících ponořené části tvrdé vynořené flóry litorálu stojatých vod, která by splňovala nároky na jednoduchost a přesnost odběru. Nejvhodnější se ukázala kombinace modifikovaného Gerkingova rámového vzorkovače s pohyblivým nožem pro odběry v litorálních porostech a nový typ sondy pro odběry zoobentosu v jejich kořenové zóně. Srovnání účinnosti rámového vzorkovače a ruční síťky bylo provedeno v litorálu tří kaprových rybníků. Vzorkování s použitím rámového vzorkovače bylo sice pracnější avšak umožnilo významně (P < 0.05) efektivnější odběr pomalu se pohybujících nebo přisedlých živočichů jako jsou plži, máloštětinatí červi, pijavky, vodní roztoči a larvy pakomárů. Naproti tomu však rychleji pohybliví bezobratlí (vodní ploštice, larvy koreter) byly významně (P < 0.05) méně přítomni ve vzorcích z rámového vzorkovače v porovnání s ruční síťkou. Keywords: littoral vegetation; phytophilous macroinvertebrates; pond macrozoobenthos; sampling Available at various institutes of the ASCR New approach to phytophilous macroinvertebrates sampling in emergent littoral vegetation

The aim of the study was to design the sampling method for collection of phytophilous macroinvertebrates associated with submersed parts of hard emergent littoral vegetation in still waters, which ...

Sychra, Jan; Adámek, Zdeněk
Ústav biologie obratlovců, 2006

Ichthyofauna of the lower reaches of the Dyje River and the adjacent floodplain with floodplain forests
Lusk, Stanislav; Lusková, Věra; Halačka, Karel; Horák, Václav; Pražák, O.
2001 - English The lower reaches of the Dyje River with adjacent floodplain constitute an unique territory fragment in the Czech Republic. Its hydrological system is prominent with a high diversity of aquatic habitats including natural floodings over the floodplain part. During last 50 years, the occurrence of 49 species fish was found there in total. Of them, 41 species are assessed to be autochtonous, i.e. 75% of the native ichthyofauna structure of the Czech Republic. As strategically significant, the direct barrier-free connection of the lower Dyje River through the Morava River with the Danube has been manifested. In such way during recent years, the occurrence has been renewed of naturally immigrating Pelecus cultratus, Gymnocephalus schraetser and Zingel zingel, which had disappeared in the past. Sporadically, also the occurrence of Acipenser ruthenus and the wild form Cyprinus carpio is renewed. Naturally in the territory of the Czech Republic, new species such as Carassius auratus, Proterorhinus marmoratus, Sander volgense and Gymnocephalus baloni have penetrated. This unique territory is intended to be proclaimed for the Biospherical reserve and as protected territory for selected fish species within the NATURA 2000 system. Keywords: River Dyje; floodplain; ichthyofauna Available at various institutes of the ASCR Ichthyofauna of the lower reaches of the Dyje River and the adjacent floodplain with floodplain forests

The lower reaches of the Dyje River with adjacent floodplain constitute an unique territory fragment in the Czech Republic. Its hydrological system is prominent with a high diversity of aquatic ...

Lusk, Stanislav; Lusková, Věra; Halačka, Karel; Horák, Václav; Pražák, O.
Ústav biologie obratlovců, 2001

Fish assemblages of the artificially made water habitats in floodplain forests
Horák, Václav
2001 - English In the alluvium of the Dyje River (r. kms 0.0-35.00) the original biotops and the artificially made biotops (created as a part of revitalisation activities) were studied in two floodplain forest complexes (the Kančí obora and the Soutok floodplain forests). Within the Kančí obora floodplain forest the most diversified assemblage was found in the new made complex of three pools, the Palachy (16 species) because of its permanent connection with hydrological systém. The species Rutilus rutilus, Scardinius erythrophthalmus, Blicca bjoerkna occured most. In the original pool U svaleného dubu (14 species) were the R. rutilus, S. erythrophthalmus species most frequent. Within the Soutok area in the artificially made complex of two pools, the Kesle, 9 fish species were found. The species Abramis ballerus occured most. In the original pool, the Krumpava, 10 fish species were found with A. ballerus occuring most as well. The artificially made habitats (pools) provide the same conditions for fish if permanently connected with the hydrological system of the floodplain forest. Keywords: floodplain forest; fish communities; druhy; mosty Available at various institutes of the ASCR Fish assemblages of the artificially made water habitats in floodplain forests

In the alluvium of the Dyje River (r. kms 0.0-35.00) the original biotops and the artificially made biotops (created as a part of revitalisation activities) were studied in two floodplain forest ...

Horák, Václav
Ústav biologie obratlovců, 2001

Revitalisation and fishes in the inundation area and the floodplain forests along the lower reaches of the River Dyje
Lusk, Stanislav; Halačka, Karel; Lusková, Věra; Horák, Václav
2001 - English The hydroeconomical modifications during 1968-1986 have changed fundamentally the natural hydrological regime of the lower Dyje River and adjacted floodplain. The proper stream channel was straightened and erected flood-oreventing leeves stopped natural floodings over the original floodplain substantial part. Elaborated and successively realised were specific rehabilitation projects that should eliminate negative impact of the modifications performed on the fish biota there. Concerned in the rehabilitation of the longitudinal and lateral migration permeability of the respective hydrological system for fish. That means to achieve the increase of aquatic habitat diversity by revitalisation of vanishing or by creation of new beckwater, pools and lagoons. The controlled inundation over a part of alluvial meadows has improved conditions for reproduction of phytophilous fish species. The rehabilitation of permanent connection in oxbows cut off (original river meanders) with the Dyje River will increase significantly the diversity of hydrological and geomorphological characteristics of the river bed channelised. The final goal is to create conditions for the ichthyofauna stabilisation and development in the respective area. Keywords: River Dyje; floodplain; fish biota Available at various institutes of the ASCR Revitalisation and fishes in the inundation area and the floodplain forests along the lower reaches of the River Dyje

The hydroeconomical modifications during 1968-1986 have changed fundamentally the natural hydrological regime of the lower Dyje River and adjacted floodplain. The proper stream channel was ...

Lusk, Stanislav; Halačka, Karel; Lusková, Věra; Horák, Václav
Ústav biologie obratlovců, 2001

Ultrastructure of spirochetes isolated from culicine mosquitoes
Sanogo, Yibayiri Osée; Reipert, S.; Halouzka, Jiří; Hubálek, Zdeněk; Němec, M.
2000 - English We report the morphological studies of six spirochetal strains. In transmission electron microscopy (thin sections and negative staining), with both blunt and tapered ends, a three-layered outer membrane and variable number of endoflagella. Keywords: were observed. The strains were heterogenous in their lengths, widths and the number of their flagella. Available at various institutes of the ASCR Ultrastructure of spirochetes isolated from culicine mosquitoes

We report the morphological studies of six spirochetal strains. In transmission electron microscopy (thin sections and negative staining), with both blunt and tapered ends, a three-layered outer ...

Sanogo, Yibayiri Osée; Reipert, S.; Halouzka, Jiří; Hubálek, Zdeněk; Němec, M.
Ústav biologie obratlovců, 2000

Migrační bariéry na řece Dyji - Jez Břeclav v ř.km 26,7
Lusk, Stanislav; Lusková, Věra; Halačka, Karel; Horák, Václav
1999 - English Keywords: River Dyje; fish migration Available at various institutes of the ASCR Migrační bariéry na řece Dyji - Jez Břeclav v ř.km 26,7

Lusk, Stanislav; Lusková, Věra; Halačka, Karel; Horák, Václav
Ústav biologie obratlovců, 1999

Re-opening of two meanders in the Hodonín area
Jurajda, Pavel
1999 - English Keywords: meanders; River Morava Available at various institutes of the ASCR Re-opening of two meanders in the Hodonín area

Jurajda, Pavel
Ústav biologie obratlovců, 1999