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Man-eaters: history and the perspective of the conflict relationship of man and the largest predators of the planet Earth
Seidlová, Barbora ; Čech, Martin (advisor) ; Muška, Milan (referee)
This research bachelor thesis focuses on the problematics of man-eating predators, media coverage of their attacks, negative effect this has on the society and also their protection, which is currently very topical. The purpose of this thesis is discovering, whether these individual predators are actually man-eating and if so, for which reasons. This thesis closely focuses on conflicts between predators and humans in the recent years and also how to prevent these attacks from happening and how to act while confronted by a predator. The average number of attacks, their typical course and identification of predators by traces left by them, are listed as well. In conclusion, we can see that predator attacks are not as frequet as it appears by many sources. Thanks to the media coverage however, panic can be spread, leading to disposal of these so called predators, including endangered species, that need to be, for these reasons, protected. Keywords: Attacks, shark, crocodile, tiger, lion, leopard, bear
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Ellimination of unwanted fish species from dam reservoirs - Possibilities, efficiency and economic evaluation.
Jůza, Tomáš ; Blabolil, Petr ; Čech, Martin ; Draštík, Vladislav ; Holubová, Michaela ; Hůda, J. ; Kočvara, Luboš ; Kolařík, Tomáš ; Muška, Milan ; Peterka, Jiří ; Prchalová, Marie ; Říha, Milan ; Sajdlová, Zuzana ; Tušer, Michal ; Vašek, Mojmír ; Vejřík, Lukáš ; Kubečka, Jan
spontaneous development of populations and the influence of human interventions. For situations where a certain part of the fish population needs to be caught, within the project 'Biomanipulation as a tool for improving the water quality of reservoirs', we tested the available approaches in terms of their effectiveness and difficulty. The target species of catches were mainly cyprinid fish (bream, bleak, roach, rudd, white bream), which feed mainly\non zooplankton and tend to form very large populations. Among the most effective methods of catch during spawning are catches using electrofishing boats and fyke nets. In the non-spawning period, it is possible to carry out mass catches using trawl nets. Catches are effective both before spawning (in April) and during the summer. However, with repeated catches in the same places, their effectiveness decreases as a result of the fish being spooked. The efficiency of the catches partially improves again if the catches are repeated with a break of approximately 1–2 weeks. Catches also vary according to the stocking density of a given water body. With effective catches, the cost of catching 1 kg of fish is in the range of CZK 15–50.
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