水库养鱼一般采取捕大留小轮捕轮放的养殖方式,根据笔者十年从事水库养鱼及渔政管理经验,冬放鱼种具有如下优点: 一、鱼种培育到冬初,膘肥体壮,鳞片较为紧凑,生长速度随水温降低而减缓,此时投入水库适应能力强。二、水温较为适宜。放养时间选择在水温5-10℃拉网起鱼,机械损伤小,长短运输适应性强,运输成活率高。三、运输密度大,能减小劳动强度,减少运输费用。四、水库水位较深,鱼种从小 According to the author’s ten years of experience in fish farming and fishery management in reservoirs, the fish species in winter have the following advantages: First, the breeding of fish species till early winter, Strong body, the scale is more compact, the growth rate decreases with the decrease of water temperature, this time into the reservoir adaptability. Second, the water temperature is more appropriate. Stocking time choose to pull fish at 5-10 ℃ water temperature, small mechanical damage, long transport adaptability, high transport survival rate. Third, the transport density, can reduce labor intensity and reduce transportation costs. Fourth, the reservoir water depth, small species