National Repository of Grey Literature 108 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
The effect of salting the highway D8 in the winter months: Results of species composition and abundance of water organisms in streams during vegetation season in year 2018.
Blabolil, Petr ; Kučerová, Andrea ; Matěna, Josef ; Rychetský, P. ; Peterka, Jiří
The focus of the study is to document the effect of chloride toxicity on aquatic organisms (macrophytes, aufwuchs, macrozoobenthos, fish and amphibians) in recipients around the D8 motorway, km 48.276 - 64.689, where the motorway passes through the České středohoří Protected Landscape Area. The summary of the achieved results for the vegetation season 2018 is the content of the presented report.
The effect of salting the highway D8 in the winter months: Results of species composition and abundance of water organisms in streams during vegetation season in year 2019.
Blabolil, Petr ; Kučerová, Andrea ; Matěna, Josef ; Bešta, Tomáš ; Rychetský, P. ; Peterka, Jiří
The focus of the study is to document the effect of chloride toxicity on aquatic organisms (macrophytes, aufwuchs, macrozoobenthos, fish and amphibians) in recipients around the D8 motorway, km 48.276 - 64.689, where the motorway passes through the České středohoří Protected Landscape Area. The summary of the achieved results for the vegetation season 2019 is the content of the presented report.
Hydrobiological monitoring of Medard lake in 2019
Hejzlar, Josef ; Nedoma, Jiří ; Znachor, Petr ; Seďa, Jaromír ; Peterka, Jiří
Presented report summarizes the results of hydrobiological monitoring of Medard Lake in 2019 and recommends further monitoring actions. The year 2019 was the second year after the lake was filled, when no more water from the Ohře River was filled and only small tributaries from the small river basin flowed into the lake. Thus, the ecosystem of the lake has reached a final state in terms of hydrological regime and nutrient load, characterized by very low water exchange, low trophic levels with low productivity of planktonic communities, development of submerged macrovegetation in coastal zones and specific seasonal changes in chemistry and biological parameters.
Results of malaco-ichthyological survey of the Vltava River between 287,625-288,24 river km.
Muška, Milan ; Peterka, Jiří
The aim of the surveys was to determine the species composition and abundance of large bivalves and fish in the 287,625-288,242 river km section of Vltava River affected by planned alluvial mining and subsequent evaluation of this impact on protective conditions of specially protected species in accordance with Decree No. 395/1992, on Nature and Landscape Protection.
Current ichthyofauna of Laka Lake and connected streams
Blabolil, Petr ; Draštík, Vladislav ; Kočvara, Luboš ; Kolařík, Tomáš ; Muška, Milan ; Peterka, Jiří ; Soukalová, Kateřina ; Vrba, Jaroslav
The aim of this study was determination of Lake Laka and connected streams ichthyofauna. The obtained results, including their evaluation, are included in the report.
Marketing Strategy of the Selected Company
Šťastná, Klára ; Peterka, Jiří (referee) ; Chlebovský, Vít (advisor)
This diploma thesis deals with the elaboration of proposals for the improvement of the marketing strategy for an optician brand named Valore. Following the theoretical background, this thesis analyzes the current state of the company and its marketing strategy. Based on the findings from the analysis of the internal and external environment of the brand, as well as from a questionnaire survey, specific and feasible suggestions for an improvement of the marketing strategy are created. The proposal part of the work is mainly focused on minimization and elimination of identified weaknesses while making use of strengths and opportunities of the brand. The marketing mix method was chosen to formulate suggestions for the marketing strategy adjustments. Suggestions contain a specific description of the recommended changes that will help to raise the company's awareness and bring in new clients. The proposals are mainly focused on the unification of the current online self-presentation, which is the company's greatest shortcoming. The suggestions include drafts for a redesign of the company's website as well as custom made way of communication on social networks. It also contain adjustments of the discount policy and the use of online customer registration, which is related to customer benefits and newsletters. The proposals were made in detail, including target groups and illustrative examples, so that it could be used by the company. The company is also recommended to employ an external online marketing specialist who will manage marketing communication according to proposals and his or hers own experience. Other suggestions include the modification of the assortment at the Gajdošova shop, so as to improve the identified customer dissatisfaction. A solution is also proposed for a detected problem with an employee in one of the stores, who the company should lay off and replace with a new employee. Among the proposals is also the use of the potential of the company's electric car, for which a design of an advertising sticker is prepared, which will create an affordable mobile outdoor commercial. To save unnecessary costs, it was also proposed to cancel the current advertisement in the BRNO-STŘED magazine, because the return of the costs proved to be almost zero amount.
Complex fish stock survey of Jordán Reservoir in 2019
Peterka, Jiří
The aim of the biomanipulation intervention was to reduce the number of undesirable fish species and the aim of the subsequent ichthyological survey to map the state of fish stock after the intervention, with particular emphasis on estimating the abundance and biomass of individual fish species in the reservoir and recommending further management of the reservoir. The report summarizes the results achieved and the draft recommendations. \n\n
Complex fish stock survey of Jordán Reservoir in 2018
Peterka, Jiří
The aim of the ichthyological survey of the reservoir was to map the state of fish stock with an emphasis on estimating the abundance and biomass of individual fish species, estimating the risks of further development and recommending further management of the reservoir. The report summarizes the results achieved and the draft recommendations.
Complex fish stock survey of Lake Most in 2018
Peterka, Jiří
Aim of the complex ichthyological survey of Lake Most was to map the current state and succession of lake’s fish stock with particular emphasis put on abundance and biomass estimates of all fish species, evaluation of possible risks to the further development of the fish stock and recommendations for the lake management. Summarization of achieved results and recommendations for further monitoring are included in the presented report.
Hydrobiological monitoring of Medard Lake in 2018
Hejzlar, Josef ; Nedoma, Jiří ; Znachor, Petr ; Seďa, Jaromír ; Peterka, Jiří
Presented report summarizes the results of hydrobiological monitoring of Medard Lake in 2018 and recommends further monitoring actions. The year 2018 was the first year after the lake was filled, when no more water from the Ohře River was filled and only small tributaries from the small river basin flowed into the lake. Thus, the ecosystem of the lake has reached a final state in terms of hydrological regime and nutrient load, characterized by very low water exchange, low trophic levels with low productivity of planktonic communities, development of submerged macrovegetation in coastal zones and specific seasonal changes in chemistry and biological parameters.

National Repository of Grey Literature : 108 records found   1 - 10nextend  jump to record:
See also: similar author names
39 PETERKA, Jiří
1 PETERKA, Josef
1 Peterka, J.
2 Peterka, Jan
3 Peterka, Jaroslav
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