气候因子和水体理化因子变化与蟹存活率的研究

Studies on the Changes of Climate Factors and Seawater Physico-Chemical Factors vs. Crabs' Survival Rate

实验表明:在盐度为和的海水中,病蟹的死亡率分别为和、。在 10 5 3 d 10 % 30 %40 % pH 8.和的海水中,和的病蟹死亡率分别为和、。在风力为～级的东北0 pH 7.7 2 d 3 d 7.1 % 7.1 %14.3 % 13 风或北风时,病蟹内死亡率为。 2 d 31.3 %

Experiments show that the moralities of the diseased crabs are 10 % and 30 %,40 % in the seawater with salinities of 10 and 5 for 3 days respectively, the moralities of the diseased crabs ( Helice sp.) are 7.1 % and 7.1 % , 14.3 % in the seawater with pH 8.0 and pH 7.7 for 2 days and 3 days respectively, the morality of the diseased crabs is 31.3 % in the northeastern or ～northern wind of forces 13 for 2 days.