EUROPEAN GRAYLING OF THE TEREBLYA RIVER BASIN AND ASPECTS OF ITS ARTIFICIAL REPRODUCTIONJournal: Fisheries Science of Ukraine (Vol.19, No. 1)
Publication Date: 2012-03-25
Authors : Mruk А.; Velikopolskiy I.; Ustich V.;
Page : 53-61
Keywords : Tereblya River; morphological characteristics; European grayling; spawning brood stock;
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.
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