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Composition of stygobiotic communities in selected set of springs in Lusatian mountains
Sobotová, Jana ; Bílý, Michal (advisor) ; Hořická, Zuzana (referee)
From August to December 2016, ten selected springs in the Lusatian Mountains were three times sampled in order to study underground water fauna. The sampling method was based on filtration of rising water for several hours.
The organisms were determined at higher-taxonomic level. Six taxa were found in the underground water: ostracods (class Ostracoda), oligochaetes (class Oligochaeta), copepods of order Harpacticoida and Cyclopoida, arachnids of the subclass Acari and amphipod crustaceans of the family Niphargidae. The majority of specimens belonged to the order Harpacticoida.
The highest number of specimens was found in the spring No. 5 Čtvrtý propustek. Representatives of all taxa were found only in spring No. 3 U oplocenky. On the other hand, in the spring No. 9 Nad pasekou no specimen of underground fauna was found.
Next part of research included measurements of physical and chemical characteristics of the spring waters. It was found out that these waters are clean and they comply with chemical parameters for drinking water. The spring No. 10 Pod Kulichem differed strikingly in SO42- concentration, pH and conductivity from the others. The water from spring No. 7 U smrku exceeded the natural background concentration of F- ions.
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Spring water fauna in selected areas of Lusatian mountains
Šindelářová, Kateřina ; Bílý, Michal (advisor) ; Ladislav, Ladislav (referee)
In the years 2015 2016 was examined in the Lusatian mountains 10 head
where it sprang. In each of its fauna has been collected as bentická, as well as
underground, and now in three series. Then there was the environment of each
spring, which is bound by the occurrence of fauna. Were chemical and physical
parameters.
In 9 of the watch was continuously measured and the measured temperature
of the individual chemical physical indicators. It was found that the environment
springs from 2013 has changed significantly, so it is stable. The water that flows on
the surface, here is clean and almost meets in terms of chemical ukazatelůnormy of
drinking water. The source for all the circumstances today, is the same. The
underground source of these sources comes from the period of coniaku and is very
shallow. The composition of the benthic fauna is significantly changed from 2013,
only changing the abundance of individuals. Once again managed to confirm the
occurrence of the ploštěnky mountain (Crenobia alpina). By lapacích o.k., managed
to remove fauna occurring in the groundwater. It was deep and.
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