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抚远江段的黑龙江野鲤产卵时间为 5月下旬水温上升到 16～ 17℃后的 2～ 3d ,水温迅速上升是产卵的刺激信号。在低温 (11～ 15℃ )环境中进行人工催产 ,保持水温稳定或上升 ,催产率与 18～ 2 0℃水温时相近。在 16～ 2 0℃环境中进行人工催产 ,水温下降超过 3℃ ,催产率接近 0。捕获的亲鱼分别在 10～ 11℃、14～ 15℃、17～ 18℃水温环境中雌雄分离蓄养 7～ 30d后进行人工催产 ,蓄养时间越长 ,温度越高 ,雌鱼的催产率越低 ,雄鱼则无明显影响。黑龙江野鲤襄胚原肠期胚胎在 10℃、孵出期胚胎在 14℃时发育停滞。神经胚期胚胎在12℃时死亡率超过 6 0 %;仔鱼期幼鱼在 9℃死亡率达 80 %。
Fuyuan section of Heilongjiang wild carp oviposition time for the water temperature in late May rose to 16 ~ 17 ℃ after 2 ~ 3d, the rapid rise in water temperature is the spawning stimulus signal. In the low temperature (11 ~ 15 ℃) environment for artificial production, to maintain a steady or rising water temperature, oxytocin rate and 18 ~ 20 ℃ when the water temperature is similar. In 16 ~ 20 0 environment for artificial labor, water temperature dropped more than 3 ℃, oxytocin rate close to 0. The captured broodstock were separately cultured for 7 days to 30 days in 10 ~ 11 ℃, 14 ~ 15 ℃, 17 ~ 18 ℃ water temperature environment for artificial growth. The longer the storage time, the higher the temperature, the lower the female’s oxytocin yield, Male fish have no significant effect. Heilongjiang wild carp Xiang embryo gastrulation stage embryo at 10 ℃, hatching embryos at 14 ℃ developmental arrest. Neuroembryo embryos had a mortality rate of over 60% at 12 ° C; juvenile larvae at larval stages had a mortality rate of 80% at 9 ° C.