Abstract
The article provides calculations and recommendations for fisheries development and improvement of fish productivity of reservoirs in the Kuban basin. The taxonomic composition of water biological resources has been studied and the natural bio-production potential of some reservoirs in the South of Russia has been determined. It is proposed for the purpose of pastoral aquaculture to produce directed formation of the ichthyofauna of reservoirs by yearlings Hypophthalmichthys molitrix, Hypophthalmichthys nobilis, Ctenopharyngodon idella, and as anaddition Cyprinus carpio, Mylopharyngodon piceus, Liza haematocheila with an individual mass not less than 25-30 g, which will allow rational use of forage resources of aquatic ecosystems.
Highlights
In the Kuban basin, there are more than 15 reservoirs located on the territory of four southern regions of the Russian Federation: the Karachay-Cherkess Republic, Stavropol territory, Krasnodar territory and the Republic of Adygea
The catch in reservoirs has decreased by 5.6 times compared to the beginning of the 90 - ies of the last century, while herbivorous species that make up more than 65% of the catches have not been found in catches since 2001
The formation of the fish fauna occurs mainly in a natural way. This led to the formation of populations of low-value fish species (Scardinius erythrophthalmus, Rutilus rutilus, Perca fluviatilis, Leucaspius delineatus, etc.), which currently occupy the first place in both numbers and ichthyomass
Summary
In the Kuban basin, there are more than 15 reservoirs located on the territory of four southern regions of the Russian Federation: the Karachay-Cherkess Republic, Stavropol territory, Krasnodar territory and the Republic of Adygea. In the Krasnodar territory there are 3 reservoirs with a total area of 47.9 thousand ha, including Krasnodar area of 40 thousand hectares – pond two regions (Krasnodar Krai and Adygeya Republic); Kryukovskaya area of 4 hectares and Varnavinsky – 3,9 thousand hectares of the Reservoir, as pasture reservoirs are operated very inefficiently. The catch in reservoirs has decreased by 5.6 times compared to the beginning of the 90 - ies of the last century, while herbivorous species that make up more than 65% of the catches have not been found in catches since 2001. The reasons for the inefficient use of reservoirs as pasture reservoirs are insufficient volumes of stocking them with fish-planting material of herbivorous species, low efficiency of fishing, as well as unrecorded catch
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