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Zhodnocení rybářského managementu pstruhového revíru Svitava 5
 Polívka, Lukáš
The main aim of this thesis is to evaluate the biological status of species populations of agriculturally important fish species in the district Svitava 5 and the evaluation of the evidence in the district's ten-year series. Ichthyological surveys were carried out in autumn 2015, on 20th and 21st November. At various locations were determined basic physicochemical parameters of the water and found topographical data. Catches were made by using electrical units. All fish were returned gently back to the territory after finding plastic signs. In all localities have been detected 3 fish species from two families. The total abundance ranged from 899 to 3634 ks.ha-1 and the biomass from 58.7 to 250.6 kg per ha -1. Big drop in the number of caught individuals was recorded at grayling, when it reduce the number of catches from 21 ks.ha -1 to 1 ks.ha -1 in the ten-year series.
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Zhodnocení trendu vývoje úlovků lososovitých ryb a lipana podhorního ve vybraných pstruhových revírech řeky Svitavy
 Polívka, Lukáš
Bachelor's work is targeted on factors affecting number of fish society on trout fishing areas, mainly of salmonids and grayling. Further more work is targeted on evaluation of anual catches of fish listed below on trout areas Svitava 3,4 and 5 in last 15 years. This results will be compared to fishing pressure on monitored areas with level of releasing of fis listed below. For evaluation of catches, fishing pressure and level of released fish was used evidence of trout kinds fish areas MRS in Brno. Results are showing, that the largem number of catches in last 15 years are in Svitava 3 area, which i also under the biggest fishing pressure. On the contrary the most fish released were in area Svitava 5. Enviromental factors in Svitava river are distictly better than in 1989. In this improvement are involved many closes of troubled facilities and also wastewater treatment plant.
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1 Polívka, L.
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