No (209)
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Final report about research in Sokolov post mining sites in 2019 based on agreement between ENKI ops and Institute of Soil Biology BC CAS
Frouz, Jan; Bartuška, Martin; Kopecký, T.; Kučera, J.; Bednářová, E.; Krůček, M.; Král, K.; Kotápišová, M.; Moradi, J.; Lin, Qiang; Dini-Andreote, F.; Meador, Travis Blake; Angel, Roey; Harantová, L.; Heděnec, P.; Li, Lingjuan; Baldrian, P.; Angst, Šárka
2019 - Czech
The report brings main results of the research about soil and ecosystem recovery in post mining landscape near Sokolov based on agreement between ENKI ops and Institute of soil biology, BC CAS. Zpráva přináší souhrn výsledků výzkumu obnovy půd a ekosystémů na území postiženém těžbou nerostů na Sokolovsku na základě dohody mezi ENKI ops a Ústavem půdní biologie BC AV ČR za rok 2019.
Keywords:
final report; research; Sokolov; post mining sites
Available at various institutes of the ASCR
Final report about research in Sokolov post mining sites in 2019 based on agreement between ENKI ops and Institute of Soil Biology BC CAS
The report brings main results of the research about soil and ecosystem recovery in post mining landscape near Sokolov based on agreement between ENKI ops and Institute of soil biology, BC CAS.
Hydrobiological monitoring of Medard Lake in 2018
Hejzlar, Josef; Nedoma, Jiří; Znachor, Petr; Seďa, Jaromír; Peterka, Jiří
2019 - Czech
Presented report summarizes the results of hydrobiological monitoring of Medard Lake in 2018 and recommends further monitoring actions. The year 2018 was the first year after the lake was filled, when no more water from the Ohře River was filled and only small tributaries from the small river basin flowed into the lake. Thus, the ecosystem of the lake has reached a final state in terms of hydrological regime and nutrient load, characterized by very low water exchange, low trophic levels with low productivity of planktonic communities, development of submerged macrovegetation in coastal zones and specific seasonal changes in chemistry and biological parameters. Předkládaná zpráva sumarizuje dosažené výsledky za rok 2018 a navrhuje doporučení pro další sledování. Rok 2018 byl prvním rokem po naplnění jezera, kdy se již žádná voda z Ohře nenapouštěla a do jezera přitékaly pouze drobné přítoky z vlastního malého povodí. Ekosystém jezera se tedy dostal z hlediska hydrologického režimu a živinového zatížení do konečného stavu, pro který je typické velmi malá obměna vody, nízká úroveň úživnosti s nízkou produktivitou planktonních společenstev, rozvoj ponořené makrovegetace v příbřežních zónách a specifické sezónní změny chemismu i biologických parametrů.
Keywords:
revitalization; community succession; ecosystem monitoring
Available at various institutes of the ASCR
Hydrobiological monitoring of Medard Lake in 2018
Presented report summarizes the results of hydrobiological monitoring of Medard Lake in 2018 and recommends further monitoring actions. The year 2018 was the first year after the lake was filled, when ...
Survey of the catfish population in the Klíčava reservoir in 2018
Vejřík, Lukáš
2019 - Czech
Based on the capture of wels catfish using longlines, the aim of the study was: 1. To estimate the abundance of the catfish population, individuals over 70 cm TL (total length). 2. To compare the abundance and size of catfish, expressed as the catch per unit of effort, with the other reservoirs surveyed under the management of the Vltava River Authority state enterprise (Žlutice and Římov). 3. To determine the average length and weight of catfish. 4. To evaluate the diet of catfish according to the stomach content analyses. Cílem studie bylo na základě odlovu sumce velkého metodou návazcových šňůr: 1. Odhadnout početnost populace sumce velkého, jedinců větších než 70 cm TL (celková délka). 2. Srovnat početnost a velikost sumců, vyjádřenou jako úlovek na jednotku úsilí, s jinými zkoumanými nádržemi ve správě státního podniku Povodí Vltavy (Žlutice a Římov). 3. Zjistit průměrnou délku a hmotnost sumců. 4. Vyhodnotit potravu sumců dle obsahu žaludků.
Keywords:
wels catfish; longlines; mark and recapture; abundance; size; diet
Available at various institutes of the ASCR
Survey of the catfish population in the Klíčava reservoir in 2018
Based on the capture of wels catfish using longlines, the aim of the study was: 1. To estimate the abundance of the catfish population, individuals over 70 cm TL (total length). 2. To compare the ...
Ichthyological survey of the fish stock of Lipno Reservoir in 2018
Soukalová, Kateřina; Kubečka, Jan; Kočvara, Luboš; Jůza, Tomáš; Souza, Allan T.
2019 - Czech
The study evaluates the state and development of fish stock in relation to the current fishery management and develops proposals for further management of the fish community and fishery regulations at the Lipno reservoir. Studie zhodnocuje stav a vývoj rybí obsádky ve vztahu k dosavadnímu rybářskému hospodaření a vypracovává návrhy pro další řízení rybího společenstva a rybolovu na nádrži Lipno.
Keywords:
fish community; angling; pikeperch; carp
Available at various institutes of the ASCR
Ichthyological survey of the fish stock of Lipno Reservoir in 2018
The study evaluates the state and development of fish stock in relation to the current fishery management and develops proposals for further management of the fish community and fishery regulations at ...
Monitoring the fish stock of Bolevecké ponds in 2019
Jůza, Tomáš
2019 - Czech
The aim of the study was to investigate fish community composition in Bolevecké ponds after fish stock reduction and massive development of submerged macrophytes. Cílem studie byl monitoring celkového stavu rybí obsádky Boleveckých rybníků po redukci početnosti nežádoucích druhů ryb a rozvoji makrofyt.
Keywords:
revitalisation; biomanipulation; electrofishing
Available at various institutes of the ASCR
Monitoring the fish stock of Bolevecké ponds in 2019
The aim of the study was to investigate fish community composition in Bolevecké ponds after fish stock reduction and massive development of submerged macrophytes.
The effect of salting the highway D8 in the winter months: Results of species composition and abundance of water organisms in streams during vegetation season in year 2018.
Blabolil, Petr; Kučerová, Andrea; Matěna, Josef; Rychetský, P.; Peterka, Jiří
2019 - Czech
The focus of the study is to document the effect of chloride toxicity on aquatic organisms (macrophytes, aufwuchs, macrozoobenthos, fish and amphibians) in recipients around 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 2018 is the content of the presented report. Předmětem studie je dokumentovat vliv toxicity chloridů na vodní organismy (makrofyta, nárosty, makrozoobentos, ryby a obojživelníci) v recipientech v okolí dálnice D8 km 48,276 – 64,689, kde dálnice prochází CHKO České středohoří. Sumarizace dosažených výsledků za vegetační sezónu 2018 je obsahem předkládané zprávy.
Keywords:
Macrophytes; Fish; Amphibians
Available at various institutes of the ASCR
The effect of salting the highway D8 in the winter months: Results of species composition and abundance of water organisms in streams during vegetation season in year 2018.
The focus of the study is to document the effect of chloride toxicity on aquatic organisms (macrophytes, aufwuchs, macrozoobenthos, fish and amphibians) in recipients around the D8 motorway, km 48.276 ...
VN Sedlice – Experimental bottom sediment removal
Vrzák, J.; Borecký, K.; Borovec, Jakub
2018 - Czech
The report describes the progress of the mining experiment leading to the removal and deposit of bottom sediments from the reservoir. The report includes monitoring of technological conditions and the influence of mining and processing of sediments on the water quality in the reservoir. Zpráva popisuje průběh těžebního pokusu vedoucího k odstranění a uložení dnových sedimentů z nádrže. Součástí zprávy je monitoring technologických podmínek a vlivu těžby a zpracování sedimentů na jakost vody v nádrži.
Keywords:
sediment dredging; geotextile tube; water quality
Available at various institutes of the ASCR
VN Sedlice – Experimental bottom sediment removal
The report describes the progress of the mining experiment leading to the removal and deposit of bottom sediments from the reservoir. The report includes monitoring of technological conditions and the ...
Final report on ichthyological work within NAZV project No. QJ1620240 in 2018
Blabolil, Petr; Kubečka, Jan
2018 - Czech
The aim of the study was to carry out a survey of fish stocks in the inshore part of Švihov Reservoir with a special attention on the natural reproduction of pike and the spatial dispersion of marked asp fry. Cílem studie bylo provedení průzkumu rybí obsádky v příbřežní části vodní nádrže Švihov se zvláštním zaměřením na zjištění přirozené reprodukce štiky obecné a zjištění prostorové disperze značeného plůdku bolena dravého.
Keywords:
piscivorous fish; biomanipulation; electrofishing
Available at various institutes of the ASCR
Final report on ichthyological work within NAZV project No. QJ1620240 in 2018
The aim of the study was to carry out a survey of fish stocks in the inshore part of Švihov Reservoir with a special attention on the natural reproduction of pike and the spatial dispersion of marked ...
Hydroacoustic assessment of the fish stock in Lake Balaton in 2017
Tušer, Michal; Muška, Milan
2018 - English
This report describes a study of open-water fish assemblage in Lake Balaton, Hungary, in 2017. The lake was acoustically surveyed using two horizontally-oriented 120 kHz transducers. The observed fish stock was assessed on the basis of fish sizes, abundance, biomass, and spatial distribution in the lake.
Keywords:
biomass; abundance; open-water distribution
Available at various institutes of the ASCR
Hydroacoustic assessment of the fish stock in Lake Balaton in 2017
This report describes a study of open-water fish assemblage in Lake Balaton, Hungary, in 2017. The lake was acoustically surveyed using two horizontally-oriented 120 kHz transducers. The observed fish ...
Ecophysiology of the large pine weevil, Hylobius abietis, unknown aspects of its life cycle
Doležal, Petr; Davídková, Markéta
2018 - Czech
The report summarizes recent knowledge on large pine weevil ecophysiology, especially development on different host species and methodology of maintaining laboratory cultures. Zpráva shrnuje dosavadní poznatky o ekofyziologii klikoroha borového se zaměřením na vývoj na různých druzích dřevin a metody laboratorního chovu.
Keywords:
large pine weevil; ecophysiology; development
Available at various institutes of the ASCR
Ecophysiology of the large pine weevil, Hylobius abietis, unknown aspects of its life cycle
The report summarizes recent knowledge on large pine weevil ecophysiology, especially development on different host species and methodology of maintaining laboratory cultures.
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