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在对虾(Penaeus orientalis)全人工育苗中,亲虾越冬死亡率高是当前面临的大问题。北方的对虾人工育苗,产卵亲虾主要靠捕获自然亲虾,江浙一带也以装运北方自然亲虾作为弥补越冬亲虾存活率低的主要手段。随着对虾养殖业的不断发展和对虾捕捞量的下降,自然条虾的捕获必然受到限制,唯有降低亲虾越冬死亡率,才能从根本上解决这个矛盾。作者认为,亲虾越冬死亡率可以远低于现在的一般水平,关键在于找出制约亲虾死亡的因子,以便
In the whole artificial breeding of Penaeus orientalis, the overwintering mortality of broodstock is a big problem currently facing. Artificial breeding of prawn in North China mainly depends on natural broodstock for spawning broodstock. Natural progeny from northern Jiangsu are also used as the main means to compensate for the low survival rate of overwintering broodstock. With the continuous development of shrimp farming and the reduction of shrimp catches, the capture of natural shrimp will inevitably be limited. Only by reducing the overwintering mortality of broodstock can we fundamentally resolve this contradiction. The author believes that the overwintering mortality of broodstock can be much lower than the current general level, the key is to identify the factors that restrict the death of broodstock, so that