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大银鱼属鲑形目,银鱼科,大银鱼属,是银鱼科中个体最大的种类,具有很高的经济价值。大银鱼的移植已有较大的发展,而池塘养殖尚属起步摸索阶段。根据胡绍坤、沈其璋、吴林坤的《太湖大银鱼卵子自然发育的观察》报道,其自然孵化率是很低的。由此来看大银鱼人工繁殖是很重要的。它可为以后的大银鱼增养殖提供可靠的苗种来源。 汉沽区营城水库和高庄水库均属CLNa Ⅲ型半咸水,盐度在1—5‰之间。汉沽区大银鱼增殖试验课题组在两水库进行了数年的人工繁殖试验,对大银鱼的胚胎发育进行了详细的观察与记录,对如何提高大银鱼卵的受精率和孵化率已摸索到了一些经验。
The big silverfish is a salmon-shaped head, silverfish family, large silverfish genus, is the largest species in the genus Silverfish, with high economic value. Big silverfish transplantation has been a greater development, and pond farming is still a groping stage. According to reports by Hu Shaokun, Shen Qizhang and Wu Linkun, “Observation of the Natural Development of Ovipositional Fish in Taihu Lake,” its natural hatching rate is very low. From this point of view, artificial breeding of big silverfish is very important. It can provide a reliable source of seed for the future of the giant silverfish breeding. Hangu District Yingcheng Reservoir and Gaozhuang Reservoir are CLNa Ⅲ type brackish water, salinity between 1-5 ‰. Hangu District, large silverfish proliferation test group conducted two years in the two reservoirs of artificial breeding experiments, the whitebait embryo development carried out a detailed observation and record of how to improve the fertilized silver eggs and hatching rate has been Groping some experience.