Gonadal Development of Diploid and Triploid Pink Salmon (Oncorhynchus gorbuscha) from the White Sea
V. S. ARTAMONOVA1,2, M. V. PONOMAREVA3, V. V. IGNATENKO4, A. A. MAKHROV1,2
1Severtsov Institute of Ecology and Evolution, RAS, 119071, Moscow, Leninsky ave., 33
2Institute of Biophysics, 660036, Krasnoyarsk, Akademgorodok, 50/50
3Lomonosov Moscow State University, 119991, Moscow, Leninskiye Gory, 1-12
4Vygskiy Fish Hatchery, 186530, Karelia, Belomorsky region, Sosnovetz
Keywords: задержка созревания, интерсексы, пол, триплоидия, гонады, термошок, горбуша, Oncorhynchus gorbuscha, maturation, intersexes, sex, triploid, gonads, pink salmon, Oncorhynchus gorbuscha
Abstract
Delayed maturation was observed in some diploid females reared in farming cages. Only males (fully mature and failing to mature) and intersexes were found among triploids. In this connection possible mechanisms of genetic sex determination in pink salmon as well as the possibility of using triploids for regulation of sizes of artificial pink salmon populations are discussed. A conclusion that use of triploids of pink salmon in aquaculture is unefficient has been made.
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