No (490)
Yes (40)
Number of found documents:
530
Published from
to
Implementation of network Natura 2000 the Protected Landscape Areas of Nature Conservation Agency of the Czech Republic and their monitoring - inventory searches: ichthyology NPR Krumlovsko-rokytenské slepence
Halačka, Karel
2014 - Czech
There were observed occurence and frequency of selected group of endangered fish species: weatherfish (Misgurnus fossilis), spined loach (Cobitis sp.), European bullhead (Cottus gobio) and Siberian bullhead (Cottus poecilopus). Sledován byl výskyt a četnost vybrané skupiny ohrožených druhů ryb: piskoř pruhovaný (Misgurnus fossilis), sekavec (Cobitis sp.), vranka obecná (Cottus gobio) a vranka pruhoploutvá (Cottus poecilopus).
Keywords:
Natura 2000; monitoring
Available at various institutes of the ASCR
Implementation of network Natura 2000 the Protected Landscape Areas of Nature Conservation Agency of the Czech Republic and their monitoring - inventory searches: ichthyology NPR Krumlovsko-rokytenské slepence
There were observed occurence and frequency of selected group of endangered fish species: weatherfish (Misgurnus fossilis), spined loach (Cobitis sp.), European bullhead (Cottus gobio) and Siberian ...
Spatial distribution of carp in semi-intensive pond
Mrkvová, Markéta; Zukal, Jan; Adámek, Zdeněk; Šútovský, I.; Jurajda, Pavel
2014 - Czech
In semi-intensive pond aquaculture, the dietary requirements of the species cultured (mainly carp Cyprinus carpio) are guaranteed through consumption of natural food organisms together with "supplementary" feed inputs. As a result, we hypothesise that carp will utilise the whole area of the pond in their search for those places where natural food is available. To date, there has been no in-depth study on fish behaviour and feeding habits in such ponds, despite the possibility of food competition where fish are stocked at high densities. Such competition could lead to decreased growth in younger fish cohorts, leading to poorer flesh quality. In this study, we use radio-telemetry to provide new information on carp behaviour in a 130ha pond under semi-intensive aquaculture. Our results indicate that fish distribution in the pond is uneven, with fish using approximately two-thirds of the pond area. This behaviour was partly influenced by size-class. Some fish tended to remain at localities where supplementary food was regularly provided, but some of them used both localities with supplementary and natural food. These results should prove useful for improving fish feeding regimes in ponds using a similar semiintensive system to our model pond.
Available on request at various institutes of the ASCR
Spatial distribution of carp in semi-intensive pond
In semi-intensive pond aquaculture, the dietary requirements of the species cultured (mainly carp Cyprinus carpio) are guaranteed through consumption of natural food organisms together with ...
Gobiidae - food competitors for our native fish species?
Všetičková, Lucie; Jurajda, Pavel; Vašek, Mojmír; Adámek, Zdeněk; Roche, Kevin
2014 - Czech
To date, two species of the non-native Gobiidae family have been recorded in the Czech Republic: the tubenose goby (Proterorhinus semilunaris) and round goby (Neogobius melanostomus). The aim of this study was to assess the dietary habits of these two species, with the relationship between goby diet and that of native species (potential competition, predation) of particular interest. Early results suggest that the main dietary items of both gobiids are common benthic invertebrates such as Chironomidae, Trichoptera and Ephemeroptera. Fish eggs and fry were rarely taken by either species and, when taken, consisted almost exclusively of eggs and fry of their own species (cannibalism). In addition, the round goby was shown to be necrophagous, scavenging on large fish carcasses. This behaviour si relatively rare in the Czech fish assemblage. Our results suggest that tubenose and round goby, while not predating heavily on native benthivorous species, may still represent possible competitors.
Keywords:
tubenose goby; round goby; Czech Republic
Available on request at various institutes of the ASCR
Gobiidae - food competitors for our native fish species?
To date, two species of the non-native Gobiidae family have been recorded in the Czech Republic: the tubenose goby (Proterorhinus semilunaris) and round goby (Neogobius melanostomus). The aim of this ...
Ichthyological monitoring of the Hamry water reservoir in the year 2013
Jurajda, Pavel
2013 - Czech
This study, which has been running since 2008, examines the use of the Hamry Water Reservoir as a model for fish community biomanipulation studies with the aim of improving water quality. Of primary interest to the Reservoir administrators, the Elbe River Basin authority s.p., is the maintenance of high water quality for drinking purposes, thereby preventing conflict of interest with multiple stakeholders. In addition, the study aims to determine whether biomanipulation of fish communities can be undertaken effectively in a reservoir. Cílem celé studie, která probíhá již od roku 2008, je využití VN Hamry jako modelového objektu pro biomanipulační zásahy v rámci zlepšení kvality vody v nádrži. Prvotním zájmem správce VN, podniku Povodí Labe, s.p., je vysoká kvalita vody pro pitné účely, takže zde nedochází ke konfliktu zájmů více zainteresovaných stran. Cílem bylo rovněž zjistit, zda je vůbec reálné v podmínkách VN provádět efektivní biomanipulace s rybím společenstvem.
Keywords:
ichthyological monitoring; Hamry water reservoir
Available at various institutes of the ASCR
Ichthyological monitoring of the Hamry water reservoir in the year 2013
This study, which has been running since 2008, examines the use of the Hamry Water Reservoir as a model for fish community biomanipulation studies with the aim of improving water quality. Of primary ...
Monitoring of large carnivores in SCI Beskydy in the year 2013
Koubek, Petr
2013 - Czech
The aim of the project is to evaluate the status of large carnivores’ populations (European lynx, wolf, and brown bear) in SCI Beskydy using different monitoring methods. Cílem projektu je s použitím různých metod monitoringu zhodnotit stav populací velkých šelem (rys, vlk, medvěd) na území EVL Beskydy a vypracovat doporučení pro jejich ochranu.
Keywords:
large carnivores; Beskydy Mts.
Available at various institutes of the ASCR
Monitoring of large carnivores in SCI Beskydy in the year 2013
The aim of the project is to evaluate the status of large carnivores’ populations (European lynx, wolf, and brown bear) in SCI Beskydy using different monitoring methods.
Zoological days Brno 2013
Bryja, Josef; Řehák, Z.; Zukal, Jan
2013 - Czech
V roce 2013 bylo registrováno 487 účastníků (z toho 289 studentů), odeznělo 137 přednášek ve 21 přednáškových sekcích a bylo vystaveno 182 posterů. Tato čísla opět prokazují, že Zoologické dny se staly největší pravidelnou konferencí se zoologickou tematikou v rámci České republiky a Slovenska. Do již tradiční studentské soutěže (podporované zejména časopisem Živa a nakladatelstvím Academia) bylo zařazeno 62 přednášek a 109 posterů. Letos poprvé byly uděleny i ceny za nejlepší přednášku a poster s entomologickou tematikou, které byly podporovány Českou společností entomologickou.
Keywords:
Zoology; Conference
Fulltext is available at external website.
Zoological days Brno 2013
V roce 2013 bylo registrováno 487 účastníků (z toho 289 studentů), odeznělo 137 přednášek ve 21 přednáškových sekcích a bylo vystaveno 182 posterů. Tato čísla opět prokazují, že Zoologické dny se ...
Assessment of species composition and abundance of juvenile fish communities in relation to the assessment of good water status at specified profiles along the River Oder
Jurajda, Pavel; Jurajdová, Zdenka; Mrkvová, Markéta; Roche, Kevin Francis; Šlapanský, Luděk
2013 - Czech
The aim of this report is to evaluate species composition and abundance of juvenile fish communities along specified profiles along the Oder in relation to the assessment of good water status, as a basis for updating the "Plan for the Upper Odra River sub-basin" in accordance with appropriate methodologies laid down by the Ministry of the Environment. Cílem této zprávy je vyhodnocení druhového složení a početnosti společenstev juvenilních ryb na zadaných profilech v povodí Odry ve vazbě na hodnocení dobrého stavu vod, jako podklad pro aktualizaci Plánu dílčího povodí Horní Odry dle platných metodik Ministerstva životního prostředí ČR.
Keywords:
juvenile fish; River Oder
Available at various institutes of the ASCR
Assessment of species composition and abundance of juvenile fish communities in relation to the assessment of good water status at specified profiles along the River Oder
The aim of this report is to evaluate species composition and abundance of juvenile fish communities along specified profiles along the Oder in relation to the assessment of good water status, as a ...
Final report of the project Monitoring and full-area of mapping SACs as a background for finalization of proposal of system Natura 2000 in the Czech Republic - part F 64 in the year 2013
Halačka, Karel; Vlach, P.; Lojkásek, B.; Hanel, L.
2013 - Czech
Monitoring on 52 localities on territory of the Czech Republic was realized in 2013. Observed were occurence and frequency of selected group of endangered fish species: Ukrainian brook lamprey (Eudontomyzon mariae), streber (Zingel streber), zingel (Zingel zingel), gudgeon (Romanogobio sp.), Danube ruffe (Gymnocephalus baloni), striped ruffe (Gymnocephalus schraetser), ziege (Pelecus cultratus), weatherfish (Misgurnus fossilis), golden loaches (Sabanejewia aurata) and spined loach (Cobitis sp.). V roce 2013 byl realizován monitoring na 52 lokalitách na území České republiky. Sledován byl výskyt a četnost vybrané skupiny ohrožených druhů ryb: mihule ukrajinská (Eudontomyzon mariae), drsek menší (Zingel streber), drsek větší (Zingel zingel) hrouzek běloploutvý (Romanogobio sp.), ježdík dunajský (Gymnocephalus baloni), ježdík žlutý (Gymnocephalus schraetser), ostrucha křivočará (Pelecus cultratus), piskoř pruhovaný (Misgurnus fossilis), sekavčík horský (Sabanejewia aurata), sekavec (Cobitis sp.)
Keywords:
Natura 2000; monitoring
Available at various institutes of the ASCR
Final report of the project Monitoring and full-area of mapping SACs as a background for finalization of proposal of system Natura 2000 in the Czech Republic - part F 64 in the year 2013
Monitoring on 52 localities on territory of the Czech Republic was realized in 2013. Observed were occurence and frequency of selected group of endangered fish species: Ukrainian brook lamprey ...
Ichthyological survey of fish communities in the Czech stretch of the lower Elbe
Jurajda, Pavel; Jurajdová, Zdenka; Roche, Kevin Francis; Šlapanský, Luděk
2013 - Czech
The object of Order no. W/OO/13/019/13-33 was to evaluate the adult and juvenile fish communities along the stretch between the villages of Píšťany and Dolní Žleb on the River Elbe. The aim was to determine the composition of adult and fingerling fish populations and status of natural fish reproduction at specified locations along the section in connection with the proposed construction of a weir at Děčín. Předmětem objednávky (č. W/OO/13/019/13-33) bylo vyhodnotit adultní a plůdková společenstva ryb řeky Labe v úseku mezi obcemi Píšťany a Dolní Žleb. Cílem bylo zjistit složení adultních a plůdkových společenstev ryb a stav přirozené reprodukce ryb na zadaných lokalitách předmětného úseku v souvislosti s uvažovanou výstavbou Plavebního stupně Děčín.
Keywords:
ichthyological survey; River Elbe
Available at various institutes of the ASCR
Ichthyological survey of fish communities in the Czech stretch of the lower Elbe
The object of Order no. W/OO/13/019/13-33 was to evaluate the adult and juvenile fish communities along the stretch between the villages of Píšťany and Dolní Žleb on the River Elbe. The aim was to ...
Ichthyological survey of river pools and lagoons on the river Elbe between Střekov and Hřensko
Jurajda, Pavel; Jurajdová, Zdenka; Mrkvová, Markéta; Janáč, Michal; Šlapanský, Luděk; Mikl, Libor
2013 - Czech
The object of Order no. W/OO/13/022/12-06 was to conduct an ichthyological survey at 13 ponds and lagoon sites along the River Labe in the section from Střekov to Hřensko. The aim of the report is to evaluate the fish communities and natural reproduction success at the sites, and to determine the importance and potential of individual sites for the ichthyofauna of this section of the River Elbe in connection with the proposed construction of a weir at Děčín. Předmětem objednávky (č. W/OO/13/022/12-06) bylo provedení ichtyologického průzkumu na 13 lokalitách poříčních tůní a lagun Labe v úseku od Střekova po Hřensko. Cílem předkládané zprávy je vyhodnotit rybí společenstva a úspěšnost přirozené reprodukce na sledovaných lokalitách a zjistit význam a potenciál jednotlivých lokalit pro ichtyofaunu řeky Labe v předmětném úseku v souvislosti s uvažovanou výstavbou Plavebního stupně Děčín.
Keywords:
ichthyological survey; River Elbe
Available at various institutes of the ASCR
Ichthyological survey of river pools and lagoons on the river Elbe between Střekov and Hřensko
The object of Order no. W/OO/13/022/12-06 was to conduct an ichthyological survey at 13 ponds and lagoon sites along the River Labe in the section from Střekov to Hřensko. The aim of the report is to ...
NRGL provides central access to information on grey literature produced in the Czech Republic in the fields of science, research and education. You can find more information about grey literature and NRGL at service web
Send your suggestions and comments to nusl@techlib.cz
Provider
Other bases