The lsraeli Journal of Aquaculture - Bamidgeh 51(1), 1999,40-43

SHORT COMMUNICATION
MATURATION AND FECUNDITY OF THE SILVER CARP,
HYPOPHTHALMICHTHYS MOLITRIX, IN UZBEKISTAN


B.O. Kamilov and M.Y. Komrakova
Institute of Aquaculture, 21a, Chilanzar-10, Tashkent, 700123, Uzbekistan


YAFIT (R&D) Laboratory. Fish Breeding Center, Gan Shmuel 38810, Israel

(Received 7.12.98, Accepted 21.3.99)

Abstract

In Uzbekistan, female silver carp mature at age 3-4-years when they reach 42-55 cm in length and 1.5-3 kg in total weight. Absolute fecundity of 3-5-year-old females of 42-78 cm and 1,400-9,340 g was recorded as 0.5-1.9 million eggs and the relative fecundity as 95-458 eggs per g of gutted fish. The gonadosomatic Index of the mature females before ovulation was 9.1-37.2%. The diameter of the ripe eggs in the gonads before spawning was 0.6-1.01 mm.

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