日前,中国水产科学研究院长江水产研究所濒危鱼类保护学科组科研人员通过人工调控,成功使人工养殖的达氏鲟在没有外源激素诱导下自由交配产卵,获得了自然交配繁育的后代。达氏鲟为国家一级保护鱼类,是长江中上游定居性鲟鱼类,水利工程建设、捕捞等人类活动导致其自然资源显著衰退。随着栖息地环境的不 Recently, researchers from the Institute of Endangered Fish Science of the Yangtze River Fisheries Research Institute of the Chinese Academy of Fisheries successfully controlled the artificial breeding of Artemia sturgeon without external hormone-induced mating to lay eggs and obtained the offspring of natural mating and breeding . Dart sturgeon is a national level protected fish, is a settled sturgeon in the middle and upper reaches of the Yangtze River, human activities such as water conservancy construction, fishing lead to a significant decline of its natural resources. With the habitat environment is not