DYNAMICS OF THE POPULATION AGE STRUCTURE AND GROWTH OF PERCH (PERCA FLUVIATILIS LINNAEUS, 1758) IN CHIVYRKUY BAY OF LAKE BAIKAL
The analysis of empirical data, covering a 30 year period, showed that the size-age structure, linear and weight growth of perch is highly mobile and mixed-nye performance. Observed multi-year trend of changes compared to the late 1980s and early 1990s years. The population of perch Perca fluviatilis L. in the Chivyrkui Gulf of the lake. Baikal was “younger”, and the size of perch decreased, which probably had a negative impact on reproductive potential. In Chivyrkui Gulf is dominated by fast-growing form of perch. Current status and dynamics of perch population show that it is possible fishing in the strictly limited size of (the value of which must be identified on the basis of monitoring of fish populations and their food base). Taking into account the special regime of economic and other activities on the territory of the Zabaikalsky national Park, made recommendations on fishing for perch with a view to the formation of the population, which would be dominated by large, “trophy” specimens. This will increase the recreational importance of the Chivyrkuisky Bay attract anglers, and therefore, increase revenues, as the national Park and related regional structures of a tourist destination.