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Start Over Creator Josef Matěna

1. Benthic communities in inland salinized waters with different salinities and nutrient concentrations and the ecology of Chironomus aprilinus (Diptera: Chironomidae) in the Czech Republic

Creator:
Josef Matěna, Šímová, Iva, Jakub Brom, and Novotná, Kateřina
Format:
print, počítač, and online zdroj
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, dvoukřídlí, pakomárovití, těžba uhlí, oplodnění, Diptera, Chironomidae, coal mining, fertilization (biology), Chironomus aprilinus, hydric restoration, saline inland waters, 2, and 59
Language:
English
Description:
The macrozoobenthos in saline pools at dumps in a former coal mining area was studied over a period of two years. Due to specific environmental conditions these pools are unique in the Czech Republic. Extremely high values of salinity (up to 11‰) along with a low concentration of dissolved phosphorus (0.01-0.1 mg.l-1) are typical of some of the water in this area. The pools were grouped into three categories based on their conductivity values and treated using cow dung, municipal wastewater treatment sludge and inorganic NPK (nitrogen-phosphorus-potassium) fertilizer at doses recommended for carp ponds. The application of fertilizer had a positive effect on the density and biomass of all the groups in the macrozoobenthos. The highest and the lowest increases in macrozoobenthos biomass were recorded after the application of NPK and cow dung, respectively. However, the application of fertilizer had no effect on the diversity of macrozoobenthos. Chironomus aprilinus, recorded in the Czech Republic for the first time, inhabited all pools with conductivity ranges of between 5,000-16,000 µS.cm-1. The density of C. aprilinus larvae increased with increasing salinity reaching a maximum of about 17,083 ind.m-2 (biomass - 82 g.m-2). Analysis of C. aprilinus phenology revealed a bivoltine pattern with the summer generation of larvae reaching a maximum in June-July and the overwintering generation in October to November., Josef Matěna, Iva Šínová, Jakub Brom, Kateřina Novotná., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Mořský a sladkovodní svět se střetly na jihu Čech

Creator:
Jan Kubečka, David Boukal, Josef Matěna, Kateřina Soukalová, and Milan Říha
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, Akademie věd České republiky., Biologické centrum, aplikovaný výzkum, ichtyologie, vodní ekosystémy, vědecko-technické projekty, applied research, ichtyology, water ecosystems, research and technological development projects, Jihočeský kraj (Česko : 2000-), South Bohemian Region (Czechia : 2000-), 2, and 59
Language:
Czech
Description:
Jan Kubečka ... [et al.].
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

3. Význam kapra v rybničním hospodářství

Creator:
Josef Matěna and Martin Flajšhans
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, zoologie, ryby, obojživelníci, plazi, životní prostředí, ekologie, reptiles, amphibians, fishes, environment, ecology, 2, and 59
Language:
Czech
Description:
V článku je popsán původ, domestikace a současný význam kapra obecného (Cyprinus carpio) jako nejdůležitějšího druhu rybničních chovů v Evropě. Stručně je vysvětlena technologie chovu kapra a její vlivy na ekosystémy rybníků., The origin, domestication process and present value of Common Carp (Cyprinus carpio) as the most important species in pond aquaculture in Europe is described. The technology of carp production and the impact of carp culture on the ecosystems of fishponds are briefly explained., Josef Matěna, Martin Flajšhans., and Obsahuj seznam literatury
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public