EUROPEAN GRAYLING OF THE TEREBLYA RIVER BASIN AND ASPECTS OF ITS ARTIFICIAL REPRODUCTION
Authors: Mruk А., Velikopol’skiy I., Ustich V.
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There has been presented the morphological characteristics and results of artificial reproduc- tion of European grayling of the Tereblya River basin. The grayling spawning brood stock in the Tereblya River consists of 3–4-year old breeders. With similar average body length — 20.4 cm, females had a weight of 70.8 g, while males — 69.0 g. Average working fecundity of females was 1059 eggs. Ejaculate volume of males was 0.05–0.2 ml, sperm mobility was on average 24 sec. Incubation output was 21–30%., larva survivability during feeding on living feeds — 26.3%, 0+ fish reached the body weight of 2–5 g with body length of 7 cm.