TY JOUR TI NEW ACCLIMATIZATION OBJECTS IN FRESHWATER AQUACULTURE: GAMETOGENESIS, SEXUAL CYCLES, FISH-BREEDING DEVELOPMENT KW fish KW introduction KW new objects KW acclimatization KW aquaculture KW gametogenesis KW sexual cycles KW artificial breeding JO Fisheries AU Bagrov, A.M. AU Ilyasova, V.A. AU Melchenkov, E.. AU Kalmykova, V.. PY 2020 IS 2020 PB FSBI "TSUREN"