National Repository of Grey Literature 9 records found  Search took 0.00 seconds. 
Ecological status of Lake Baikal
Mongolova, Marina ; Komendová, Renata (referee) ; Zlámalová Gargošová, Helena (advisor)
The aim of this bachelor thesis was to study the ecological status of Lake Baikal. The research focuses on the main problems related to the impact of human activity on the lake. During the study, data on the hydrochemistry of the lake and its tributaries were analysed and scientific papers on the ecological status of Lake Baikal were reviewed. Based on the data were identified the main types of pollutants and places of their concentration. As a result of this work was obtained a more complete picture of the condition of Lake Baikal and were identified its main problems.
Hydromorphological survey and identification of reference status of the Jizera River
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Ferbar, Petr (referee)
Long-term and intensive human use of watercourses has led to their considerable degradation. Recently, there has been an effort to improve the ecological status of aquatic ecosystems, based on studies of hydromorphological characteristics of natural watercourses and identification of reference conditions. The aim of this thesis was the hydromorphological survey and an identification of reference conditions of the Jizera River. The selection of sites suitable for identification of reference status was based on pre-set criteria determined on remote sensing data, which eliminated significant anthropogenic impacts on the channel and floodplain. The survey using River Habitat Survey (Environmental Agency, 2003), Hydroecological Monitoring (Langhammer et al., 2014) and REFCON (Šmerousová a Matoušková, 2014a) methods was conducted in selected sites. Sites where hydromorphological conditions correspond with very good class, according to Hydroecological Monitoring, were used for identification of the type-specific reference conditions. Physico-chemical characteristics according to ČSN 757221 (1998) and Rosendorf et al. (2011) and the biological quality element macroinvertebrates according to Opatřilová et al. (2011) were also evaluated. Physico-chemical characteristics reached class I - II (ČSN, 1998) and...
Ecological survey and assessment of streams within European Standards. Application in the Rolava River basin.
Beranová, Zuzana ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
This thesis deals with implementation of Water Framework Directive (2000/60/EC) in the Czech Republic. The study area was the Rolava River basin in the Ore Mountains (northwest of Bohemia). The ecological status assessment was applied to both - the main stream and relevant tributaries. Available hydrobiological and hydrochemical data enhanced with the field hydromorphological survey using the Hydroecological monitoring (HEM, Langhammer, 2007) were applied in this thesis. Results of the field survey were compared with two ecomorphological methods: LAWA-FS (LAWA, 2000) and EcoRivHab (Matoušková, 2003, 2007). As a final result, it was found out the water body on upper course of the Rolava River achieved good ecological status. Water body on lower course of the Rolava River and of the tributary the Nejdecký Brook were classified as not achieving good ecological status. The Rolava catchment has very specific conditions and huge potential to achieve the good status in the future.
Hydromorphological survey and type specific reference conditions of streams
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Králová, Magdalena (referee)
The aim of Water framework Directive 2000/60/ES (WFD) is to reach a good ecological status of watercourses which consist of 3 constituents - the biological, physio-chemical and the hydromorphological state. To make these conditions equal among the various countries of the EU, the particular conditions of various watercourses are characterized as deviations from the default "reference status". The reference status corresponds to the natural (or near natural) state without any anthropogenic disturbance (or with only a minor disturbance). These disturbances mean different modification of the watercourses or ways of farming in the proximity of the inundation area. This Bachelor's Thesis studies publications as a basis for defining the hydromorphological - type specific - reference conditions in the WFD (2000/60/ES) context. Issues of classification and typology of watercourses are discussed, as well as the current legislation connected with these issues and the methods of hydromorphological survey in chosen countries. In the last section, possible hydromorphological parameters suitable for the determination of morphologically type-specific conditions are defined in Czech republic. Key words: reference condition, stream typology, ecological status, natural status, near natural status, hydromorphological...
Methodology of ecological status assessment of surface water bodies (category river) using fish fauna
Janáč, Michal ; Jurajda, Pavel ; Polášek, M. ; Němejcová, D.
Methodology specifies ecological quality assessment of river water bodies using BQE fish according to the Water Framework Directive (WFD, 2000/60/ECC) and national legislation requirements in this field. This methodology is fully useable in water management planning. Ecological status is classified into five classes on the base of comparison with reference conditions.
Hydromorphological survey and identification of reference status of the Jizera River
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Ferbar, Petr (referee)
Long-term and intensive human use of watercourses has led to their considerable degradation. Recently, there has been an effort to improve the ecological status of aquatic ecosystems, based on studies of hydromorphological characteristics of natural watercourses and identification of reference conditions. The aim of this thesis was the hydromorphological survey and an identification of reference conditions of the Jizera River. The selection of sites suitable for identification of reference status was based on pre-set criteria determined on remote sensing data, which eliminated significant anthropogenic impacts on the channel and floodplain. The survey using River Habitat Survey (Environmental Agency, 2003), Hydroecological Monitoring (Langhammer et al., 2014) and REFCON (Šmerousová a Matoušková, 2014a) methods was conducted in selected sites. Sites where hydromorphological conditions correspond with very good class, according to Hydroecological Monitoring, were used for identification of the type-specific reference conditions. Physico-chemical characteristics according to ČSN 757221 (1998) and Rosendorf et al. (2011) and the biological quality element macroinvertebrates according to Opatřilová et al. (2011) were also evaluated. Physico-chemical characteristics reached class I - II (ČSN, 1998) and...
Hydromorphological survey and type specific reference conditions of streams
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Králová, Magdalena (referee)
The aim of Water framework Directive 2000/60/ES (WFD) is to reach a good ecological status of watercourses which consist of 3 constituents - the biological, physio-chemical and the hydromorphological state. To make these conditions equal among the various countries of the EU, the particular conditions of various watercourses are characterized as deviations from the default "reference status". The reference status corresponds to the natural (or near natural) state without any anthropogenic disturbance (or with only a minor disturbance). These disturbances mean different modification of the watercourses or ways of farming in the proximity of the inundation area. This Bachelor's Thesis studies publications as a basis for defining the hydromorphological - type specific - reference conditions in the WFD (2000/60/ES) context. Issues of classification and typology of watercourses are discussed, as well as the current legislation connected with these issues and the methods of hydromorphological survey in chosen countries. In the last section, possible hydromorphological parameters suitable for the determination of morphologically type-specific conditions are defined in Czech republic. Key words: reference condition, stream typology, ecological status, natural status, near natural status, hydromorphological...
Ecological survey and assessment of streams within European Standards. Application in the Rolava River basin.
Beranová, Zuzana ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
This thesis deals with implementation of Water Framework Directive (2000/60/EC) in the Czech Republic. The study area was the Rolava River basin in the Ore Mountains (northwest of Bohemia). The ecological status assessment was applied to both - the main stream and relevant tributaries. Available hydrobiological and hydrochemical data enhanced with the field hydromorphological survey using the Hydroecological monitoring (HEM, Langhammer, 2007) were applied in this thesis. Results of the field survey were compared with two ecomorphological methods: LAWA-FS (LAWA, 2000) and EcoRivHab (Matoušková, 2003, 2007). As a final result, it was found out the water body on upper course of the Rolava River achieved good ecological status. Water body on lower course of the Rolava River and of the tributary the Nejdecký Brook were classified as not achieving good ecological status. The Rolava catchment has very specific conditions and huge potential to achieve the good status in the future.
Ichthyological surveys of the Nýrsko and Karhov reservoirs and investigations of abundance, age composition and spawning dynamics of asp population in the Želivka Reservoir in 2015.
Vašek, Mojmír ; Soukalová, Kateřina ; Kočvara, Luboš ; Blabolil, Petr ; Baran, Roman ; Frouzová, Jaroslava ; Koliada, Ievgen ; Muška, Milan ; Šmejkal, Marek ; Draštík, Vladislav ; Kolařík, T. ; Prachař, Zdeněk ; Sajdlová, Zuzana ; Vebrová, L. ; Vejřík, Lukáš ; Kubečka, Jan
The species composition and the relative abundance and biomass of fish communities in the Nýrsko and Karhov reservoirs were evaluated by means of standardised multimesh gillnets. The spawning stock of asp in the Želivka Reservoir was individually marked using PIT tags and the density and behaviour of tagged fish at the main spawning grounds were examined through the whole spawning season. The total number of reproducing individuals in the asp population was estimated. The sex-specific length and weight growth rates of adult asp in the Želivka Reservoir were also calculated. \n\n

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