Presented master thesis deals with the issue of assessment of management in salmonid fishing ground Svitava 4. The main aim was to compare the state of fish community with the state after the last survey from 2003-2004 and to evaluate the economic evidence (level of fishermen's pressure, level of reached catch and the stocking of economically important species) for ten years in a row. The ichthyological survey was carried out in summer season in 2014 at four localities within the fishing ground Svitava 4. The topographic data of particular localities were measured by the modern devices. Also basic physicochemical parameters of water were measured. The catching was realized by electric-fishing gear. After measuring of morphometric characteristics all the fish were returned back to the fishing ground. The survey established the presence of 8 fish species in 5 families. The abundance of fish community varied on particular localities in the range from 338 to 1633 pcs.ha-1, the biomass from 53,6 to 199,2 kg.ha-1. The fish community of concerned stream has gone through significant changes since the last survey. Considerable decrease in abundance was recorded mainly in the grayling population.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:250776 |
| Date | January 2015 |
| Creators | Mareš, Lukáš |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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