No (336)
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Bioaccumulation of microcystin-LR in fish tissues accompanied by effects at biochemical level
Adamovský, Ondřej; Pašková, V.; Bláha, Luděk; Hilscherová, Klára; Kopp, R.; Babica, Pavel; Maršálek, Blahoslav
2006 - Czech
Experimental evidence on microcystin bioaccumulation and modulation of biochemical parameters related to oxidative stress and detoxication in two fish species, silver carp and common carp, after two month-exposure to microcystin producing cyanobacterial bloom in outdoor breeding tanks. Experimentální důkazy o bioakumulaci microcystinů a změnách biochemických parametrů souvisejících s oxidativním stresem a detoxikací ve dvou druzích ryb, tolstolobikovi bílém a kaprovi obecném, exponovaných po dobu dvou měsíců v rybochovných nádržích microcystin-produkujícímu vodnímu květu sinic.
Keywords:
fish; microcystin bioaccumulation; biomarkers
Available at various institutes of the ASCR
Bioaccumulation of microcystin-LR in fish tissues accompanied by effects at biochemical level
Experimental evidence on microcystin bioaccumulation and modulation of biochemical parameters related to oxidative stress and detoxication in two fish species, silver carp and common carp, after two ...
Information for customers: analyses of microcystins in water, cyanobacterial biomass, plants and animal tissues
Babica, Pavel; Bláha, Luděk; Maršálek, Blahoslav
2006 - Czech
Information for customers: analyses of microcystins (in samples of water, cyanobacterial biomass, plants and animal tissues) in Laboratory of cyanotoxins (Centre for cyanobacteria and their toxins). Informace pro zákazníky o stanovení microcystinů (ve vzorcích vody, biomasy sinic, rostlinách a živočišných tkáních) v Laboratoři cyanotoxinů (Centrum pro sinice a jejich toxiny).
Keywords:
microcystins; analysis; detection
Available at various institutes of the ASCR
Information for customers: analyses of microcystins in water, cyanobacterial biomass, plants and animal tissues
Information for customers: analyses of microcystins (in samples of water, cyanobacterial biomass, plants and animal tissues) in Laboratory of cyanotoxins (Centre for cyanobacteria and their toxins).
Database of methods, techniques and compouns for reduction of cyanobacterial blooms
Maršálek, Blahoslav; Jedličková, B.; Feldmanová, Marie; Jančula, Daniel; Maršálková, Eliška; Drábková, Michaela
2006 - Czech
The aim of the study was to inform about internet database that will summarize the methods, techniques and compounds potentially used for reduction of cyanobacterial blooms. Cílem práce bylo podat informace o připravované internetové datábázi, která bude shrnovat metody, techniky a přípravky určené pro omezení masovéh rozvoje cyanobakterií.
Keywords:
cyanobacterial blooms; reduction; database
Available at various institutes of the ASCR
Database of methods, techniques and compouns for reduction of cyanobacterial blooms
The aim of the study was to inform about internet database that will summarize the methods, techniques and compounds potentially used for reduction of cyanobacterial blooms.
Spatial patterns of vegetation changes in nature reserve Ruda (CHKO Třeboňsko) during last 20 years
Navrátil, J.; Navrátilová, Jana
2005 - Czech
Changes in vegetation were revealed with comparison of two vegetation maps from the years 1985 and 2004 in GIS. Vegetation types were defined on the basis of their species composition and abundance pattern in 1985 and were supervised with the same methodology in 2004. The relative cover of the vegetation types was compared in these two periods. We have detected the biggest decrease in land cover of open water bodies and the biggest increase in shrub vegetation such as mire willow scrub and those with Betula pendula in tree layer. Změny vegetace byly studovány porovnáním dvou vegetačních map (z roku 1985 a 2004) v prostředí GIS. Vegetační typy byly definovány podle druhového sležení vegetace v roce 1985, a mapování bylo zopakováno podle stejné metodiky v roce 2004. Porovnáno bylo relativní zastoupení a prostorové rozmístění jednotlivých vegetačních typů. Zjištěn byl značný ústup otevřených vodních ploch a ranných sukcesních stádií bohatého slatiniště. Naproti tomu se zvýšila plocha zarostlá vegetací mokřadních křovin a lesů.
Keywords:
vegetation changes; GIS,; vegetation mapping
Available at various institutes of the ASCR
Spatial patterns of vegetation changes in nature reserve Ruda (CHKO Třeboňsko) during last 20 years
Changes in vegetation were revealed with comparison of two vegetation maps from the years 1985 and 2004 in GIS. Vegetation types were defined on the basis of their species composition and abundance ...
Detection of cyanobacteria in raw water by in vivo fluorescence
Gregor, Jakub; Šípková, H.; Maršálek, Blahoslav
2005 - Czech
A method for fluorescence detection and quantification of cyanobacteria in raw water was implemented at the drinking water treatment plant. The procedure of implementation and calibration of the method is described. Na úpravně pitné vody byla zavedena metoda pro fluorescenční detekci a kvantifikaci cyanobakterií v surové vodě. Popsán je postup při zavádění a kalibraci metodiky.
Keywords:
Cyanobacteria; fluorescence; raw water
Available at various institutes of the ASCR
Detection of cyanobacteria in raw water by in vivo fluorescence
A method for fluorescence detection and quantification of cyanobacteria in raw water was implemented at the drinking water treatment plant. The procedure of implementation and calibration of the ...
Mstěnice-desterted medieval village, pollenanalytical evalution of natural environment of water will surroundings
Nekuda, R.; Jankovská, Vlasta
2005 - Czech
Palaeoreconstruction of natural environment of the medieval water mill. Paleorekonstrukce přírodního prostředí středověkého vodního mlýnu.
Keywords:
Pollen analysis; archaeology; medieval time
Available at various institutes of the ASCR
Mstěnice-desterted medieval village, pollenanalytical evalution of natural environment of water will surroundings
Palaeoreconstruction of natural environment of the medieval water mill.
Vegetation and geobiocoenological classification of silver fir forests of the Czech Republic – preliminary results
Boublík, Karel
2005 - Czech
Preliminary results of vegetation classification of silver fir (Abies alba) forests are given. Seven communities from three alliances were distinguished in the Czech Republic. Climax stage of vegetation on the habitats of each association was investigated by geobiocoenological methods. It is claimed, that fir forests are seminatural that originated by stronger human impact (incl. fir forests on pseudogleys). They depend on forest grazing, litter raking, and other forest management. Fagus sylvatica is supposed to be dominant or frequent tree under natural conditions. V příspěvku jsou prezentovány předběžné výsledky fytocenologické a geobiocenologické klasifikace jedlin v ČR. Bylo rozlišeno 7 asociací. Byl také studován klimaxový stav na stanovištích aktuálních jedlin geobiocenologickými metodami. Je konstatováno, že jedliny jsou v ČR lesními společenstvy závislými na lidském vlivu, jako je lesní pastva, hrabání steliva a v neposlední řadě lesnické hospodaření. Buk lesní by byl na většině dnešních výskytů jedlin dominantní či výrazně zastoupenou dřevinou.
Keywords:
geobiocoenology; phytosociology; climax
Available at various institutes of the ASCR
Vegetation and geobiocoenological classification of silver fir forests of the Czech Republic – preliminary results
Preliminary results of vegetation classification of silver fir (Abies alba) forests are given. Seven communities from three alliances were distinguished in the Czech Republic. Climax stage of ...
Acidification of the Jeseníky Mts., methodological and site factors
Hédl, Radim; Petřík, Petr; Boublík, Karel
2005 - Czech
The changes in the soil reaction of forest soils between the 1940´s and 2003 in the Jeseníky Mts (the Czech Republic) were analysed. The soil reaction decreased about 0.4–1.0 pH in average. Methodological bias was discussed and it seems that applied methods do not influence the results of analysis substantially. Byly studovány změny půdní reakce mezi lety 1941/1942 a 2003 na lesních plochách v Hrubém Jeseníku. Půdní reakce poklesla v průměru o 0,4–1,0 stupně pH. Byly diskutovány i možné metodologické zdroje nepřesností a zdá se, že použité metody nemají na výsledky analýz výrazný vliv.
Keywords:
acidification; forest soils; Czech Republic
Available at various institutes of the ASCR
Acidification of the Jeseníky Mts., methodological and site factors
The changes in the soil reaction of forest soils between the 1940´s and 2003 in the Jeseníky Mts (the Czech Republic) were analysed. The soil reaction decreased about 0.4–1.0 pH in average. ...
Collection of aquatic and wetland plants, Institute of Botany, Academy of Sciences of the Czech Republic, Třeboň
Navrátilová, Jana; Husák, Štěpán; Adamec, Lubomír; Dvořáková, Kateřina
2005 - Czech
The Collection of Aquatic and Wetland Plants of the Institute of Botany AS CR in Třeboň was founded in 1976 with the aim to enable ex situ studies of threatened plant species. Since that time the Collection has provided plant material for experiments, repatriation of threatened species, taxonomical studies, and botanical illustrations for the compendium Flora of the Czech Republic. It is also used as an educational collection for university students and public. Since 1998, the seeds from the Collection (about 150–200 species each year) have been collected and offered for exchange to other institutions and botanical gardens within the Index Seminum. The Collection of Aquatic and Wetland Plants is located in the Section of Ecology of the Institute of Botany in Třeboň on an area of about 0.04 ha and its current design come from 1997. The Collection includes more than 400 species grown in outdoor containers and in a greenhouse. The overwhelming majority of these species are native to the Czech Republic; the others are mainly from other parts of the northern temperate zone. The Collection of Aquatic and Wetland Plants is the largest collection of living higher aquatic and wetland plants in Europe and one of the largest collections in the world. Sbírka vodních a mokřadních rostlin Botanického ústavu AV ČR v Třeboni byla založena v roce 1976 jako prostředek ke studiu ohrožených vzácných druhů. Sbírka obsahuje asi 400 druhů pěstovaných makrofyt. Většina rostlin pochází z České republiky, případně střední Evropy, jen necelých 10 % druhů je z jiných oblastí světa. Sbírka slouží jako genová banka pro vzácné a ohrožené druhy rostlin. Mnoha domácím i zahraničním odborným pracovištím poskytuje studijní a pokusný materiál, materiál pro určování a botanické ilustrace, využívá se k výuce botaniky a rostlinné ekologie. Od roku 1998 je 150–200 druhů semen pravidelně sbíráno a nabízeno výzkumným institucím a jiným botanickým zahradám (Index Seminum). Součástí jsou záchranné kultivace více než 30 ohrožených druhů využívané k posílení přírodních populací.
Keywords:
collection of living plants; aquatic plants; wetland plants
Available at various institutes of the ASCR
Collection of aquatic and wetland plants, Institute of Botany, Academy of Sciences of the Czech Republic, Třeboň
The Collection of Aquatic and Wetland Plants of the Institute of Botany AS CR in Třeboň was founded in 1976 with the aim to enable ex situ studies of threatened plant species. Since that time the ...
Palaeogeobotaniícal notes to the potential natural occurrence of Pinus mugo in the Hrubý Jeseník Mts
Rybníček, Kamil; Rybníčková, Eliška
2005 - Czech
This paper discussed potential natural occurrence of Pinus mugo in the subalpine zone of Hrubý Jeseník Mts based on the results of macrofossils and polen analyses. These results did not deteced presence of Pinus mugo in the last 5000 years. Příspěvek diskutuje možnost přirozeného výskytu kleče v Hrubém Jeseníku. Paleobotanické analýzy nepotvrdili výskyt kleče v Jeseníkách v posledních 5 000 letech.
Keywords:
Hrubý Jeseník Mts.; Pinus mugo; natural occurrence
Available at various institutes of the ASCR
Palaeogeobotaniícal notes to the potential natural occurrence of Pinus mugo in the Hrubý Jeseník Mts
This paper discussed potential natural occurrence of Pinus mugo in the subalpine zone of Hrubý Jeseník Mts based on the results of macrofossils and polen analyses. These results did not deteced ...
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