Fish community of the upper Blanice river basin was studied in eight localities between 62 and 77 river´s km. During the research in the year 2004-2006 was evidenced the occurrence of European crayfish (Astacus astacus) and the freshwater pearl musel (Margaritifera margaritifera). By the ichthyological research was found the occurence of thirteen species of fish and lampreys. In the public notice No. 395/1992 Sb. include Lampetra planeri into critically endangered and three endangered species (Lota lota, Phoxinus phoxinus, Cottus gobio). There are occured the allochtonous fish species Salvelinus fontinalis and Oncorhychus mykiss. The dominant kind is Salmo trutta morpha fario. The next species are Leuciscus cephalus, Leuciscus leuciscus, Thymallus thymallus, Barbatula barbatula. Evidently the allochthonous origin are Rutilus rutilus and Perca fluviatilis in this river basin. For the conservation and the biodivesity safeguarding is necessary to keep the extensive land management in this area and the sensibile catchment and do not affected the natural succesion of the watershed configuration by the adverse ameliorative effects.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:46894 |
| Date | January 2007 |
| Creators | HANÁK, Radek |
| 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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