Gurbyk O. Ichthyofauna of the Kaniv reservoir in the conditions of fishery exploitation

The dissertation is devoted to the study of the state of ichthyfauna of the Kaniv reservoir in the conditions of intensive fishery exploitation (commercial fishery) as well as to the study of the effect of abiotic and biotic factors on it. It was found that the composition of ichthyofauna of the Kaniv reservoir at the current stage of its existence includes 51 fish species, which belong to 12 families, of them 7 species listed in the Red Book of Ukraine. The dominating species by the stock are roach, bream, and silver bream. To improve the scheme of fishery exploitation of the Kaniv reservoir, a number of regulatory measures should be implemented, which include: establishment of special periods for the prohibition of pike harvest and increase of its minimum legal size; increase of the minimum allowed mesh size in gill nets to 36 and 75 mm, establishment of additional zones, where commercial fishery should be prohibited.