T. HUBENOVA, A. ZAIKOV and J. KARANIKOLOV
Institute of Fishery and Aquaculture, BG-9000 Varna, Bulgaria
HUBENOVA, T., A. ZAIKOV and J. KARANIKOLOV, 2001. Rearing of pike (Esox lucius L.) up to a fingerling size. Bulg. J. Agric. Sci., 7: 489-494
An experiment was carried out on pike (E. lucius L.) rearing up to a fingerling size using a spawning and growing up earth pond. In a six week period of rearing out of 3 female and 4 male spawners per dka–1 a yield of 2000 nr. dka–1 was obtained, the average weight and length of specimens being 1712.24 mg and 60.83 mm respectively. It was found out that pike larvae start taking zooplankton when their body dimensions are 14.96 mg and 12.76 mm. They have an extremely great potential for growth during the juvenile period of development, fish growing most rapidly during the first two weeks, reaching dimensions of 161.59 mg and 26.92 mm respectively. Their longer rearing in the pond wholly depends on the presence of natural food.