鱼种在越冬期间,一般死亡率达到10%～15%,有的高达20%以上,这样不仅使鱼种数量减少,而且影响到来年成鱼的养殖,对渔业生产造成较大损失。根据多年生产经验,现将鱼种在越冬期死亡的原因与补救措施介绍如下:1鱼种越冬期死亡原因1.1池塘不合要求易引起鱼种越冬死亡的池塘因素有以下几类:1.1.1水质消瘦,浮游植物数量少,光合作用弱,产氧 During the wintering period, the general mortality rate will reach 10% -15% and some may reach as high as 20% or more. This will not only reduce the number of fish species but also affect the fish farming in the coming year, causing great losses to fishery production. According to many years of production experience, the reasons for the death of fish species in the winter and the remedial measures are described below: 1 species of fish overwintering cause of death 1.1 ponds unfriendly species of ponds easily lead to overwintering fish species are the following categories: 1.1.1 water quality Thin, less phytoplankton, photosynthesis is weak, oxygen production