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Legislation on air protection against mobile source pollution
Inquort, Vít ; Žákovská, Karolina (advisor) ; Sobotka, Michal (referee)
Mobile sources, i.e. self-propelled or portable devices equipped with an internal combustion engine, are a significant contributor to air pollution and the regulation of air protection against pollution from these sources is an important part of environmental law. This area of law is currently evolving and changing very rapidly, as it is closely linked to a number of current issues, in particular climate change. The question posed by the diploma thesis is what is the current level of air protection against pollution from mobile sources in the Czech Republic, whether it is sufficient, and what is the possible development in the future. Therefore, the thesis contains a comprehensive analysis of current legislation, taking into account the various approaches by which the law seeks to regulate mobile sources and their operation, and includes topics such as introducing mobile sources to the market, regulating their operation, setting fuel quality requirements; further deals with legislation on alternative fuels and, last but not least, deals with legal instruments of air protection, which aim to maintain or improve air quality in a certain area in relation to mobile sources. Given that a significant part of the current legislation in the Czech Republic is based on international, and particularly on EU law, in...
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Use of stable isotopes in feeding ecology of fish
Inquort, Vít ; Horká, Petra (advisor) ; Musilová, Zuzana (referee)
Cyprinidae is an important family of fish as far as ecological and economical aspects are considered. Studying feeding ecology of this family in aquatic ecosystems and integration of the findings into the overall image of trophic relationships are the fundamental prerequisite for the right interpretation of its ecological role. Stable isotope analysis is one of the methods capable of elucidating such relationships. In this thesis currently used methods and approaches in applications of stable isotope analysis in feeding ecology of fish are summarized. These vary among individual authors and include sampling of different fish tissues and different methods of preparation of samples before analysis, e.g. lipid extraction or carbonate removal. Certain mechanisms and phenomena which need to be taken into account to avoid biased results are also outlined in this thesis, among all tissue turnover and isotopic routing in particular. In the thesis current findings on food resources, trophic level and trophic niche of cyprinid fishes in freshwater ecosystems based on stable isotope analysis were summarized as well. Despite such findings being partial to date and the potential of the method not yet being fully exploited in many species, stable isotope analysis provide an important and useful tool alongside...
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