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Impact of habitat diversity and wood debris accumulation on macroinvertebrates
Nováková, Barbora ; Matoušková, Milada (advisor) ; Rödlová, Sylva (referee)
The revitalization of watercourses should be amended to restore the natural landscape water regime. Healthly waterflow should contain a morphologically rich bed with added dead wood and alternating pools and riffle. All these structures are colonized by varied fauna, that is distributed according to its dietary requirements. These problems are devoted to the research part of work. Another part is focused on the research of three tributaries in the upper basin of Blanice river near Prachatice. The location is thanks to the population of the freshwater pearl mussel (Margaritifera margaritifera), significant not only in Czech but also in european scale. Therefore, there is an important aspect of environmental protection. Given the importance of the site, there are experimental research carried out by Department of Physical Geography and Geoecology at the Faculty of Charles University in Prague. The practical part is based on the determination of macroinvertebrates revitalized Sviňovického brook and the subsequent evaluation of water quality. Samples of macroinvertebrate were collected using method PERLA and subsequently identified in families. For use BMWP score and ASPT index, the quality of water placed in the appropriate category of water quality.
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Assessment of physical river habitat diversity of streams. Application in experimental catchments of upper Blanice River.
Stříbrný, Martin ; Matoušková, Milada (advisor) ; Šípek, Václav (referee)
The subject of bachelor thesis was to evaluate the diversity of physical habitat, using three methods of hydromorphological survey. Methodologies with different approaches of evaluation have been applied to model basin Sviňovický stream. Detailed assessment describes the downstream changes in individual characteristics. River basin represents a contrast between the upper stream, which is completely anthropogenically influenced and lower stream which is after restoration. The thesis presents the result of a field survey of different methodologies and evaluates the diversity of habitat in different flow conditions. The results of all three approaches are confirmation of positive impact of restoration to the habitat quality and especially the requirement to modify each methodology to local conditions. Longitudinal development of selected hydromorphological parameters have been observed.
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Hydromorphological survey as a basis for restoration measures. Case study of the Rakovnik Brook catchment.
Maroušková, Kateřina ; Matoušková, Milada (advisor) ; Šípek, Václav (referee)
This thesis deals with use of hydromorphological assessment methods and the application of the Hydroecological monitoring HEM (Langhammer, 2007, 2013) method in the model basin of lower part of Rakovnický potok stream. This thesis presents results of the terrain survey and based on this results, the parts with poor ecomorphological conditions should be identified and restoration measures should be suggested to improve the hydromorphological quality and physical habitat of Rakovnický potok stream. This stream represents both almost natural parts of the catchment in Křivoklátsko Landscape Protected Area as well as parts which are influenced by human activities, especially by the agriculture and the industry. Due to the results of applied terrain survey and literature research, it was suggested to apply complex restoration in the whole area of Rakovnický potok basin immediately.
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Definition of reference conditions of mountain and submountain streams as a part of ecological survey
Leipeltová, Petra ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
The present thesis deals with the definition of reference conditions of mountain and submountains streams in selected European countries and on the requirements of the Water Framework Directive 2000/60/EC. Here is presented the Typology of watercourses of Czech Republic and the delimitation of mountain and submountains types in selected locations in the Ore Mountains and the Bohemian Forest. In the second part of the work is solved hydromorphological status of watercourses. Monitoring was conducted on streams Rolava, Černá voda, Křemelná, Slatinný p., Modravský p., Roklanský p. and Javoří p. To evaluate the degree of hydromorphological quality was used Hydroecological monitoring method. The thesis includes a brief assessment of physical-geographic characteristics mentioned flows with emphasis on the runoff regime in their basins. In conclusion, there are identified and defined reference parts of streams and their characteristics. Keywords: reference conditions, typology of streams, hydromorphological status, hydromorphological quality, hydromorphological monitoring, runoff regime
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Ecological condition of streams in urban areas. Case study of the Rokyka basin.
Stádníková, Monika ; Matoušková, Milada (advisor) ; Králová, Magdalena (referee)
The thesis deals with the status assessment of the stream in urban areas. The study area is the stream Rokytka in Prague. The method Hydroecological monitoring HEM (Langhammer, 2007, 2013) was used for the thesis based on field hydromorphological survey. This method is compatible with the Water Framework Directive 2000/60/EC. The thesis also includes assessement of the rainoff regime and water quality based on the available hydrological and hydrochemical data. As a final result, it was found out the stream Rokytka achieves III. hydromophological state - average state. The water quality state does not meet the requirements of the environmental standards quality. In the urban landscape, it is necessary to find a suitable compromise between flood protection and good environmental conditions. Powered by TCPDF (www.tcpdf.org)
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Changes of physical river habitat in the Prague city area. Case study area of the Botič catchment.
Tichý, Vojtěch ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
During the last 200 years third of all watercourses in Czech republic were modified, stress were massively degraded especialy in the urban areas. The increasing urbanization of the landscape has led in recent years to increased researsch ecology of urban environment, this created the need for quality assesment of watercourses. This bachelor thesis deals with anthropogenically modified flows, quality and change of physical habitat watercourses in urban areas. The main objective of this work is the evluation and presentation of the results of the field survey that was conducted in the Botič river basin using the metodology HEM and HEM-F. Field survey was conducted in the lower reaches of Botič below the Hostivař dam (river km 0,00 to 13,30 km). This section has been most modified in the past, notably in the context of urbanization. In addition to the hydromorphological condition were also mapped fluvial-morphological effects of flood 2013. Based on the evaluation results of the field survey the majority of segments were classified as poor or bad.
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Applicability of distance data for hydromorphological assessment on the example of Elbe river
Vacková, Tereza ; Langhammer, Jakub (advisor) ; Hartvich, Filip (referee)
The aim of this thesis is to evaluate the applicability of distance data for hydromorphological assessment. Background research is focused on different types of distance data sources and selected hydromorphological methods. Applicability of distance data in hydromorphological assessment was tested on four selected sections of Elbe River, on which there was previously conducted field survey. Hydromorphological assessment was based on methodology HEM (Hydroecological monitoring). Results from the field survey were used as a reference resources for comparison with the own results achieved by the assessment with distance data using public available data sources. The results indicated that use of distance data for hydromorphological assessment can be regarded as an alternative to the field survey. At the same time the study pointed to clear limitations in assessment of some parameters, namely of river bottom, where the field survey cannot be replaced by any known distance data source. The results proved that the application of distance data can lead to the results comparable to the field survey while respecting uncertainty, given by impossibility to determine some of the parameters.
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Hydromorphological assessment of rivers using distance data sources
Králová, Magdalena ; Matoušková, Milada (advisor) ; Hais, Martin (referee) ; Lehotský, Milan (referee)
The thesis is aimed on hydromorphological assessment with usage of distance data. The distance method QuaWaDis is defined and the usage of results of image processing within the hydromorphological assessment is considered. The aim of the assessment is classification of hydromorphological conditions of water bodies according to Water Framework Directive 2000/60/EC. Distance method is based on visual interpretation of public data. Image processing results can extend the number of parameters of the distance method - object based classification was applied on aerial imagery (in land cover classification), unsupervised classification and image reclassification was applied on multispectral satellite data (in water depths classification). The calibration of distance method and the credibility of the distance data was evaluated in comparison with results of field survey EcoRivHab (Matoušková, 2008). Object based image processing was aimed on accuracy assessment, index of efficiency was defined and the concept of fuzzy logic was applied in accuracy assessment. From consideration of classification efficiency is obvious, that large internally heterogeneous objecs is more effectivelly to vectorise manually. Accuracy assessment with usage of concept of fuzzy logic shows the success of object recognition within each...
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Assessment of water quality and physical river habitat chages in the interaction on macroinvertebrates.
Altmann, Martin ; Matoušková, Milada (advisor) ; Benešová, Libuše (referee)
Streams are an important part of the most ecosystems, they help them to maintain their stability and function. They should therefore be the subject of study and especially protection. For their monitoring and assessment of ecological status is increasingly used biomonitoring of benthic fauna, which well reflects the biotic and abiotic conditions in physical habitats of streams. These abiotic conditions of physical habitats which are shaped by physical and chemical factors are the subject of literature search part of this work. The second part is about the research in experimental catchments of Zbytinský brook and Tetřívčí brook, tributaries of headwater Blanice river which springs in the foothills of the Šumava mountain range. The research took place on 5 sampling sites which are different in hydromorphological parameters and rate of human activities impact. There was assessed water quality following the previous research and its relationship with discharge conditions. In the case of Tetřívčí brook, there was also assessed physical habitat and macrozoobenthic community. Zbytinský brook catchment was in the past significantly affected by agricultural activities. The main reach, which flows through Zbytiny village with 300 inhabitants, and its tributaries were meliorated. The only one tributary...
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Hydromorphological survey of the Bilina River
Kyselka, Jan ; Matoušková, Milada (advisor) ; Langhammer, Jakub (referee)
The main aim of this thesis is assessment and presentation of results of the hydromorphological survey of the Bílina river, which belongs to rivers with the biggest anthropogenic impact in the Czech Republic. The method Hydroecological monitoring (HEM, Langhammer, 2007) was used for the survey. This method is compatible with the Water Framework Directive 2000/60/EC. 53 parts of the river with the lenght 31,99 km were assessed. The thesis also includes assessement of the rainoff regime and information about protection of water ecosystems and sources in the Bílina river basin. Keywords: hydromorphology, HEM, Bílina river
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