Fytobentos studánek v Liberci a okolí
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Date
2023-06-20
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Abstract
Tato bakalářská práce se zabývá analýzou bentického společenstva řas a sinic, se zaměřením na rozsivky, ve vybraných studánkách Libereckého kraje. Úvodní část se věnuje hydrobiologii, zkoumanými organismy a využitím rozsivek jako indikátorů kvality vod. Vlastní výzkum je popsán v následujících částech. V průběhu roku 2022 bylo na jaře odebráno a analyzováno 14 vzorků, v létě 5, a také byly během odběrů měřeny fyzikálně-chemické parametry vody. U vybraných pěti studánek jsou porovnány rozdíly v diverzitě a změny společenství bentických sinic a řas. Pro analýzu rozsivek byly vytvořeny trvalé preparáty. Pomocí softwaru Omnidia byly vypočteny 4 rozsivkové indexy, na jejichž základě bylo možné určit kvalitu vody. U 9 studánek proběhla alespoň v jednom z období laboratorní analýza pro kontrolu pitné vody a výsledky byly porovnány s vyhláškou pro pitnou vodu číslo 252/2004 Sb.
This thesis deals with analysis of benthic algae and cyanobacteria community with a focus on diatoms in springs of the Liberec Region. The introductory part discusses the hydrobiology, benthic organisms and the use of diatoms as bioindicators of water quality. The research is described in the following parts. In the spring of the year 2022, 14 samples were collected and analyzed. In the summer of 2022 only five samples were collected and analyzed. Physicochemical parameters of water were measured for all samples. Changes in diversity and benthic cyanobacteria and algae communities were compared for five selected springs. Permanent preparations were created for diatom analysis. Omnidia software was used to calculate diatom indices. Based on the diatom indices, water quality was determined. Laboratory analysis for drinking water control was carried out at nine springs. The results of laboratory analysis were compared to decree No. 252/2004 Coll.
This thesis deals with analysis of benthic algae and cyanobacteria community with a focus on diatoms in springs of the Liberec Region. The introductory part discusses the hydrobiology, benthic organisms and the use of diatoms as bioindicators of water quality. The research is described in the following parts. In the spring of the year 2022, 14 samples were collected and analyzed. In the summer of 2022 only five samples were collected and analyzed. Physicochemical parameters of water were measured for all samples. Changes in diversity and benthic cyanobacteria and algae communities were compared for five selected springs. Permanent preparations were created for diatom analysis. Omnidia software was used to calculate diatom indices. Based on the diatom indices, water quality was determined. Laboratory analysis for drinking water control was carried out at nine springs. The results of laboratory analysis were compared to decree No. 252/2004 Coll.
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fytobentos, řasy, sinice, rozsivky, rozsivkové indexy, kvalita vody, bioindikátory, studánky