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Natural Swimming Pool for a Small Municipality
Mrkývka, Michal ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
Bachelor thesis deal with natural swimming biotope. In the first part concetrates on the principle of water purification natural swimming pool, a device used for the operation, properties of water, right sort of plant and regulations dictated by the state. In the sekond part presents free selected natural swimming pool in southern Moravia, compares selected indicators in bathing water and source water in natural biotope. At first depots graphic progres sof temperature, transparency and pollution in a particular biotope and then compares individual biotope between them with respect to the notice of the Ministry of Health.
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Physiochemical Parameters of Ponds during Hydrological Year
HUMMELOVÁ, Světlana
Physiochemical Parameters of Ponds during Hydrological Year The aim of this Bachelor thesis was to use the obtained data for the assessment of these physiochemical parameters on growth of the carp. The obtained data and their influence on carp grow were compared with literature. The physiochemical parameters had measured on the 29th June, 16th July, 12th August and 4th October on the Dehtář pond. The followed physiochemical parameters were measured: concentration of oxygen (mg-l-1), temperature of water (°C), pH, transparency (m) and chlorophyll concentration (?g-l-1). It was used calibrated measuring device EXO2 and a Secchi disc. The pond was measured in two transects with focus on depth, inflow, outflow and feeding area. For better evaluation of the results it had included the continuous measurements data from Vltava River Authority, particularly the concentration of oxygen, temperature and light regime. The Dehtář pond is used mainly for intense fish-pond management. Fishery Hluboká manages on this pond. Stock of the pond is polyculture. Dominant fish is common carp, next for example grass carp, pike, pikeperch and catfish. The pond is regular fed, limed and fertilized. From those data, it has produced the spatial and temporal visualisation of basic physiochemical parameters in the pond. From the spatial visualisation follows that the quality of inflow water, depth of water, meteorological situation and position of feeding area had a significant influence on physiochemical parameters. From the temporal visualisation follows that the highest differences in our data were during temperature stratification on 29th June 2016. This day range of the pH was from 7.1 to 9.1. During the other days pH was just about 8. On 29th of June 2016 the range of the temperature was quite high. The temperature was from 19.8 °C to 24.8 °C. Oxygen deficits were very often on this pond. Oxygen deficits had big influence on the death of fishes. The concentration of oxygen went down under the limit values (0.5 mg-l-1) for 2 times during the Vltava River Authority measuring. The local places of low concentration of oxygen had located on the depth of 1.5 m for 25 times during the Vltava River Authority measuring. The Vltava River Authority regularly takes measurements on the Dehtář pond. It should be used for better management and for preventing the critical situation, particularly the drop of oxygen, which could harm the fish. It should be limited feeding, because of the often oxygen deficits.
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Natural Swimming Pool for a Small Municipality
Mrkývka, Michal ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
Bachelor thesis deal with natural swimming biotope. In the first part concetrates on the principle of water purification natural swimming pool, a device used for the operation, properties of water, right sort of plant and regulations dictated by the state. In the sekond part presents free selected natural swimming pool in southern Moravia, compares selected indicators in bathing water and source water in natural biotope. At first depots graphic progres sof temperature, transparency and pollution in a particular biotope and then compares individual biotope between them with respect to the notice of the Ministry of Health.
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