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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Impact of urbanization on ecological status of the Smržovský creek
 Polák, Michal ; Komínková, Dana (advisor) ; Libuše, Libuše (referee)
This thesis handle with the ecological status of Smržovka stream, respectively handle with change of the ecological state of stream due to urbanization. Smržovka stream, concretely the right tributary of significant river Kamenice Jizerské hory Mountains rises in the Jizerské hory Mountains protected landscape area, which is almost intact due to water pollution and gradually flows through an urbanized area with a relatively high level of infrastructure and sources of pollution. For the ecological status assessment of stream were used the following three indicators: hydromorphological mapping, physico-chemical water analysis and evaluation of biological components of makrozoobenthos in terms of saprobity. The work provides information on water quality in the stream with that this unique data can be the basis for the study of other small streams that spring in urban mountainous areas.
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Species variability of bentic organisms in Dračice river classicifed by PERLA system
 KOUTNIK, Dalibor
Examination ecological size selected part of river (from village Františkov to border with Austria) on the basis of field watching. Observed results are analysed by system PERLA. Method is based on analysing biodiversity makrozoobenthos sample from fordables running water. Sampling can be apply in running water, where water column not exceed 1 m and speed of water stream to 1 m/s. Taking is made by normal or low water stage.
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Structural changes of macrozoobenthic communities in longitudinal profiles of acidified streams in the Bohemian Forest (Czech Republic)
 PELTANOVÁ, Jana
Structural changes in macrozoobenthic communities and changes in chemistry in longitudinal profiles of two acidified streams in the Bohemian Forest (Czech Republic) were investigated in 2007. The progress in chemical recovery was evident in both streams, whereas zoobenthos recovery was obvious only in less acidified stream.
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