No (354)
Yes (13)
Number of found documents:
367
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Ecophysiology of the most important bark beetles on Scots pine in the Czech Republic
Doležal, Petr; Davídková, Markéta; Hlávková, Daniela
2021 - Czech
The report summarizes information on overwintering, fecundity, flight activity and developmental rate of bark beetles infesting Scots pines in Central Bohemia, Vysočina and South Moravia. The occurrence of pseudogamous reproduction in the sharp-dentated bark beetle, Ips acuminatus, was studied in detail. Zpráva shrnuje informace o přezimování, plodnosti, letové aktivitě a rychlosti vývoje několika druhů kůrovcovitých na borovici lesní na lokalitách ve středních Čechách, na Vysočině a na jižní Moravě. U lýkožrouta vrcholkového, Ips acuminatus, byla podrobně studována četnost pseudogamního rozmnožování na výše zmíněných lokalitách.
Keywords:
bark beetles; Scots pine; pseudogamous
Available at various institutes of the ASCR
Ecophysiology of the most important bark beetles on Scots pine in the Czech Republic
The report summarizes information on overwintering, fecundity, flight activity and developmental rate of bark beetles infesting Scots pines in Central Bohemia, Vysočina and South Moravia. The ...
Report on the course and results of fish catches in the Bagr water area during night seining in 2021.
Blabolil, Petr
2021 - Czech
The report describes the results of night catches by a fry beach seine in Bagr pond in the Stromovka public forest park during the two weeks of the Hydrobiological Excursion course. Zpráva popisuje výsledky nočních odlovů plůdkovou zátahovou sítí na vodní ploše bagr ve veřejném lesoparku Stromovka během dvou týdnů kurzu Hydrobiologická exkurze.
Keywords:
fish community; demonstrating; sampling method
Available at various institutes of the ASCR
Report on the course and results of fish catches in the Bagr water area during night seining in 2021.
The report describes the results of night catches by a fry beach seine in Bagr pond in the Stromovka public forest park during the two weeks of the Hydrobiological Excursion course.
Complex survey of the fish stock of Lake Most in 2020.
Peterka, Jiří
2021 - Czech
Aim of the complex ichthyological survey of Lake Most was to map the current state and succession of lake’s fish stock with particular emphasis put on abundance and biomass estimates of all fish species, evaluation of possible risks to the further development of the fish stock and recommendations for the lake management. Summarization of achieved results and recommendations for further monitoring are included in the presented report. Cílem ichtyologického průzkumu jezera Most bylo zmapování stavu a vývoje rybí obsádky, přičemž důraz byl kladen zejména na odhad početnosti a biomasy jednotlivých druhů ryb, na odhad rizik dalšího vývoje rybí obsádky a doporučení dalšího obhospodařování jezera. Sumarizace dosažených výsledků a návrh doporučení pro další sledování jsou obsahem předkládané zprávy.
Keywords:
revitalization; ecosystem monitoring; community succession
Available at various institutes of the ASCR
Complex survey of the fish stock of Lake Most in 2020.
Aim of the complex ichthyological survey of Lake Most was to map the current state and succession of lake’s fish stock with particular emphasis put on abundance and biomass estimates of all fish ...
Final report for project 'The enhancement of rheophilous fish reproduction in the artificial river environment'.
Šmejkal, Marek; Bartoň, Daniel
2021 - Czech
Report summarize development on the project and advances that have been made in research on the limitations or rheophilic fish spawning success in riverine environment and it´s enhancement by applying mitigation measures. Výzkumná zpráva shrnuje vývoj výzkumu a pokroky dosažené ve výzkumu limitace úspěšné reprodukce reofilních ryb a jejího zvednutí pomocí aplikovaných opatření.
Keywords:
reproduction; biodiversity; asp
Available at various institutes of the ASCR
Final report for project 'The enhancement of rheophilous fish reproduction in the artificial river environment'.
Report summarize development on the project and advances that have been made in research on the limitations or rheophilic fish spawning success in riverine environment and it´s enhancement by applying ...
Securing expert leadership on the fishing out Laz reservoir and other connected activities according to Brdy conservation agency needs.
Šmejkal, Marek; Blabolil, Petr; Kolařík, Tomáš; Kortan, D.; Muška, Milan; Draštík, Vladislav
2021 - Czech
The report describes fish community reduction in Laz Reservoir. Zpráva popisuje výsledky redukce rybího společenstva na přehradní nádrži Láz.
Keywords:
fish community; conservation; restoration
Available at various institutes of the ASCR
Securing expert leadership on the fishing out Laz reservoir and other connected activities according to Brdy conservation agency needs.
The report describes fish community reduction in Laz Reservoir.
Improving the ecological potential and water quality in reservoirs using floating vegetation islands.
Čtvrtlíková, Martina; Krolová, Monika; Kučerová, Andrea; Hejzlar, Josef; Hladík, M.; Kubečka, Jan
2021 - Czech
The aim of the two-year experiment was to verify the ability of four species of sedges and natural pioneering plants to grow on substrate-free floating islands. Cílem dvouletého pokusu bylo ověřit schopnost růstu čtyř druhů ostřic a rostlin z přirozeného náletu na bezsubstrátových plovoucích ostrovech.
Keywords:
floating vegetation islands; wetland plants; water quality
Available at various institutes of the ASCR
Improving the ecological potential and water quality in reservoirs using floating vegetation islands.
The aim of the two-year experiment was to verify the ability of four species of sedges and natural pioneering plants to grow on substrate-free floating islands.
Research report on the occurence and composition of autotrophic communities in Lakes Milada and Most.
Znachor, Petr; Bešta, Tomáš; Čapková, Kateřina; Mareš, Jan; Řeháková, Klára; Čtvrtlíková, Martina; Kučerová, Andrea
2021 - Czech
The limnological measurement and research of periphyton and aquatic macrophytes were conducted in the framework of 'Strategy AV 21, post-mining landscape restoration' in 2020. Despite the good ecological potential in Lakes Milada and Most, there are several indications of possible future deterioration of water quality (e.g., the occurrence of subsurface cyanobacterial maxima in Lake Most, excessive growth of periphyton mats in both lakes, strong bottom anoxia in Lake Milada). Zpráva shrnuje výsledky limnologických měření a výzkumu perifytonu a vodních makrofyt probíhajícího v rámci programu Strategie AV 21, Záchrana a obnova krajiny v roce 2020. Ačkoli jakost vody v jezera Most a Milada odpovídá dobrému ekologickému potenciálu, zaznamenali jsme náznaky možného budoucího zhoršení (např. výskyt podpovrchových sinicových maxim v jezeře Most, nadměrný rozvoj nárostových řas v obou jezerech, výskyt anoxie u dna v jezeře Milada).
Keywords:
phytoplankon; diversity; periphyton
Available at various institutes of the ASCR
Research report on the occurence and composition of autotrophic communities in Lakes Milada and Most.
The limnological measurement and research of periphyton and aquatic macrophytes were conducted in the framework of 'Strategy AV 21, post-mining landscape restoration' in 2020. Despite the good ...
Developmental rate, fecundity and lifespan of the large pine weevil, Hylobius abietis, on different species of host trees
Doležal, Petr; Davídková, Markéta
2021 - Czech
The report summarizes results of the five years lasting experiment on the developmental rate, fecundity and lifespan of the large pine weevils, which developed and have been fed with various conifer species. Zpráva shrnuje informace o rychlosti vývoje, plodnosti a délce života klikorohů borových, kteří byli chováni na různých druzích jehličnatých dřevin. Vzhledem k dlouhověkosti modelového druhu jde o výsledky pětiletého experimentu.
Keywords:
large pine weevil; lifespan; development
Available at various institutes of the ASCR
Developmental rate, fecundity and lifespan of the large pine weevil, Hylobius abietis, on different species of host trees
The report summarizes results of the five years lasting experiment on the developmental rate, fecundity and lifespan of the large pine weevils, which developed and have been fed with various conifer ...
Results of the autumn extended research of the ichthyofauna of the lakes Laka and Čertovo, including the adjacent streams.
Blabolil, Petr; Bartoň, Daniel; Draštík, Vladislav; Jůza, Tomáš; Hladík, Milan; Holubová, Michaela; Hůda, J.; Kočvara, Luboš; Muška, Milan; Peterka, Jiří; Vrba, Jaroslav
2021 - Czech
The report describes the results of a unique survey of the ichthyofauna in two areas of the Šumava National Park, where catches were made by an electric generator in the autumn of 2021. Zpráva popisuje výsledky unikátního průzkumu ichtyofauny ve dvou oblastech Národního parku Šumava, kde byly provedeny odlovy elektrickým agregátem na podzim 2021.
Keywords:
brown trout; recovery; Sumava
Available at various institutes of the ASCR
Results of the autumn extended research of the ichthyofauna of the lakes Laka and Čertovo, including the adjacent streams.
The report describes the results of a unique survey of the ichthyofauna in two areas of the Šumava National Park, where catches were made by an electric generator in the autumn of 2021.
Effect of D8 motorway salting in the winter months: Results of monitoring the species composition and abundance of aquatic organisms in adjacent streams during the 2020 growing season.
Blabolil, Petr; Kučerová, Andrea; Matěna, Josef; Peltanová, Jana; Bešta, Tomáš; Rychtecký, Pavel; Peterka, Jiří
2021 - Czech
The aim of the report is to document the effect of chloride toxicity on aquatic organisms in the recipients in the vicinity of the D8 motorway, km 48,276 - 64,689, where the motorway passes through the České středohoří Protected Landscape Area. The summary of the achieved results for the vegetation season 2020 is the content of the presented report. Cílem zprávy je dokumentovat vliv toxicity chloridů na vodní organismy v recipientech v okolí dálnice D8 km 48,276 – 64,689, kde dálnice prochází CHKO České středohoří. Sumarizace dosažených výsledků za vegetační sezónu 2020 je obsahem předkládané zprávy.
Keywords:
salting effect; community composition; diversity
Available at various institutes of the ASCR
Effect of D8 motorway salting in the winter months: Results of monitoring the species composition and abundance of aquatic organisms in adjacent streams during the 2020 growing season.
The aim of the report is to document the effect of chloride toxicity on aquatic organisms in the recipients in the vicinity of the D8 motorway, km 48,276 - 64,689, where the motorway passes through ...
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