National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Reintroduction of a copepod species Cyclops abyssorum (Crustacea) and its impact on zooplankton in Plešné Lake
Křenová, Radka ; Sacherová, Veronika (advisor) ; Vrba, Jaroslav (referee)
Abstract Plešné Lake is a small glacial lake in the Bohemian Forest. In the 1980th, it was heavily influenced by an acification event caused by severe atmospheric pollution. Due to some extreme parameters in the water chemistry (mainly low pH and high concentration of toxic aluminum compounds) several zooplankton species got extinct. Among these, two species important in lakes food web: Daphnia spp. and Cyclops abyssorum. They, however, survived the acidification period in one of the Bohemian Forest Lake: Prášilské. Although recovery of lakes from acidification is usually followed by return of some species or colonization by others, recolonization of Plešné Lake is assumed to be very slow or impossible from external sources thanks to the remote position of the lake. Therefore in the fall of 2004 two zooplankton species (Daphnia longispina and Cyclops abyssorum) were artificially reintroduced into Plešné Lake. In the course of 4 years that followed only Cyclops abyssorum appeared in the lake, Daphnia longispina was not recorded. My thesis focuses on several aims. First, I evaluate the development of C. abyssorum population. Second, I studied the competition between C. abyssorum and another copepod species - Heterocope saliens, acidotolerant species which never disappeared from the lake. Third, I...
Reintroduction of a copepod species Cyclops abyssorum (Crustacea) and its impact on zooplankton in Plešné Lake
Křenová, Radka ; Vrba, Jaroslav (referee) ; Sacherová, Veronika (advisor)
Abstract Plešné Lake is a small glacial lake in the Bohemian Forest. In the 1980th, it was heavily influenced by an acification event caused by severe atmospheric pollution. Due to some extreme parameters in the water chemistry (mainly low pH and high concentration of toxic aluminum compounds) several zooplankton species got extinct. Among these, two species important in lakes food web: Daphnia spp. and Cyclops abyssorum. They, however, survived the acidification period in one of the Bohemian Forest Lake: Prášilské. Although recovery of lakes from acidification is usually followed by return of some species or colonization by others, recolonization of Plešné Lake is assumed to be very slow or impossible from external sources thanks to the remote position of the lake. Therefore in the fall of 2004 two zooplankton species (Daphnia longispina and Cyclops abyssorum) were artificially reintroduced into Plešné Lake. In the course of 4 years that followed only Cyclops abyssorum appeared in the lake, Daphnia longispina was not recorded. My thesis focuses on several aims. First, I evaluate the development of C. abyssorum population. Second, I studied the competition between C. abyssorum and another copepod species - Heterocope saliens, acidotolerant species which never disappeared from the lake. Third, I...
Marketing Plan of Jazyková škola Zachová, Ltd
Křenová, Radka ; Hajdíková, Taťána (advisor) ; Kincl, Tomáš (referee)
The aim of this presented thesis is to create a marketing plan for language school Jazyková škola Zachová, s.r.o. The thesis includes situational analysis which shows the current situation of the company. According to the analysis, results are defined by the main marketing goals. In the practical part are also determined marketing strategies important for achieving these goals and specified appropriate marketing activity and communication. At the end of the thesis, there are suggested possible ways of controlling the marketing plan and recommended actions for improving the situation and increasing the company competitiveness. The aim of this thesis is to prepare such a marketing plan through which will be achieved the competitive advantage and strengthen the market position.
The Importance, Value and Price of Education
Křenová, Radka ; Musil, Martin (advisor) ; Nový, Jan (referee)
The presented thesis characterizes education by means of an economic theory. The aim of the practical part is an investigation through an opinion poll comprising a response of the general public to issues related to the importance of education, its contribution and the distribution of the responsibility for the sphere between the State and its citizens. The practical part also comprises a contemplation over the price and value of education, respectively with regard to higher school education.

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1 Křenová, Radmila
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