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虹鳟是一种冷水性鱼类,喜食动物性饵料,生活的水温幅度为3～25℃,最适水温为13～18℃。浙江新安江下游终年水温变化在9～24℃,水质清新,透明度高,pH值为7～8,江中野杂小鱼、虾繁多,是虹鳟较为理想的栖息场所。1980年1月,浙江建德县农业局从山西太原运来2.8万粒虹鳟的受精卵,在室内经20天孵化,孵出幼鱼1.05万尾。小鱼苗放置在新安江大坝下一只2平方米(水深0.4米)
Rainbow trout is a kind of cold water fish, like to eat animal feed, living water temperature range of 3 ~ 25 ℃, the optimum water temperature is 13 ~ 18 ℃. The change of annual water temperature in the lower reaches of Xin’anjiang River in Zhejiang Province is 9 ~ 24 ℃. Fresh water quality, high transparency and pH value of 7 ~ 8 are the most suitable habitat for rainbow trout. January 1980, Jiande County, Zhejiang Bureau of Agriculture shipped from Shanxi Taiyuan 28,000 Rainbow Trout zygotes, indoors after 20 days of hatching, hatching 10,500 larvae. Small fry placed in the Xin’anjiang dam the next one 2 square meters (water depth 0.4 meters)