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Fish culture facility with a focus on warm water
Pavlík, Tomáš ; Princ, Michal (referee) ; Milerski, Rudolf (advisor)
This bachelor’s thesis deals with the warm water fish culture facilities. It also divides them and represents the manner of the management. The work is divided into two parts. The first part contains research and the second one is dedicated to the project itself. The research describes the most frequent measures that serve to increase the production of thermophilic fishes. The knowledge that has been found is applied in the project. The project describes the extension of the pond management of MO MRS Pohořelice, Z. S., in k. ú. Cvrčovice u Pohořelic.
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Vodní bezobratlí v rybochovných zařízeních
Seifried, Jakub
The aim of the Bachelor's thesis was a preparation of literary review on the occurrence of water invertebrates in fish farming systems designed for salmonid fish and determination of taxonomic composition of the aquatic invertebrates, their abundance and diversity in recirculation system in Pravíkov. The research was conducted at three sampling places in the system. The samples were collected once a month in the vegetative period during 2015 from the bottom of inflow and outflow channels, and moss vegetation from the wall was scraped. The physicochemical parameters also were measured. The obtained values were specified as suitable for the rearing of salmonid fish. Sampling was carried out using a benthic net with sharp metal edge for easier scraping of deposits from the solid surface. During the entire study, 15436 individuals were caught and 67 taxa detected. Diversity index (H´) ranged within 1,096 to 2,183and equitability index (E) in range 0,233 to 0,429.
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Zhodnocení výskytu a významu bezobratlých v systému intenzivního chovu lososovitých ryb.
Seifried, Jakub
The theoretical part of the thesis contains a literature review of the current knowledge on the occurrence and importance of aquatic invertebrates in salmonid fish farms. The practical part includes monitoring and determination of abundance, diversity and taxonomic composition of aquatic invertebrates in a recirculating system in Pravíkov. Sampling was conducted once a month during the vegetative season over three years, from 2015 to 2017. Samples were taken using an adjusted benthic net, from three sam-pling sites: bottom of the outflow canal from the breeding tanks, bottom of the inflow canal to the breeding tanks and the system’s wall. In addition to the abundance and diversity of aquatic invertebrates, the physico-chemical parameters of water were also measured. During the monitoring period, common breeding interventions were conduct-ed, including the discharge and disinfection of the entire system. During the monitoring period, a total of 36,066 individuals from 133 taxa of aquatic invertebrates were recorded. In 2016, despite the disinfection of the system, the highest number of taxa (74) and abundance (17,700) were registered. In 2016 and 2017, the vast majority of the macrozoobenthos collected were Chironomidae and Oligochaeta, which showed a significant growth in abundance in comparison with 2015. In 2015, 69 taxa with an abundance of 15,436 individuals were recorded. The cleaning of the system showed the highest effect on macrozoobenthos in 2017, when the bryophyte vegetation regrowth did not occur on the wall and some of the samples were without macrozoobenthos. Altogether, only 2,930 aquatic invertebrates and 67 taxa were detected. Values of the Shannon–Weaver index (H´) ranged from 1.335 to 2.214 in 2015, from 0.853 to 2.583 in 2016 and from 1.116 to 2.508 in 2017. Off all macrozoobenthos taxa recorded, Asellus aquaticus presents a potential danger to farmed fish, as it can be an intermediate host of Acanthocephala. This is also true for some species of molluscs, which can be intermediate hosts of trematodes.
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Fish culture facility with a focus on warm water
Pavlík, Tomáš ; Princ, Michal (referee) ; Milerski, Rudolf (advisor)
This bachelor’s thesis deals with the warm water fish culture facilities. It also divides them and represents the manner of the management. The work is divided into two parts. The first part contains research and the second one is dedicated to the project itself. The research describes the most frequent measures that serve to increase the production of thermophilic fishes. The knowledge that has been found is applied in the project. The project describes the extension of the pond management of MO MRS Pohořelice, Z. S., in k. ú. Cvrčovice u Pohořelic.
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