由于养殖鱼类在北方地区的生长期相对较短,鱼种越冬期较长,越冬成活率不高,而南苗北调又存在着一些不足,所以,北方高寒地区优质鱼种的培育是制约黑龙江省甘南地区渔业发展的瓶径。2002年,我们以鱼种池为生产条件,进行了大面积鱼种增产技术的实践,取得了成功,现将主要技术总结如 Due to the relatively short growth period of farmed fish in the northern region, the long winter species and overwintering survival rate of the fish species is not high, and there are some shortages in the south seedling north transfer. Therefore, the cultivation of quality fish species in the alpine region in the north is restricted The bottle diameter of fishery development in Gannan of Heilongjiang Province. In 2002, we used the fish ponds as the production conditions and carried out the practice of large-area fish production stimulation technology with great success. Now we have summarized the major technologies such as