摘要
１９９２～１９９３年，用不同Ｃａ２＋，Ｍｇ２＋和Ｋ＋含量的人。配制海水，孵化黑鲷 （Ｓｐａｒｕｓ ｍａｃｒｏｅｐｈａｌｕｓ Ｂａｓｉｌｅｗｓｋｙ）受精卵，培育前期仔鱼。实验揭示了：在没有 Ｃａ２＋的 海水中不能孵出仔鱼，在没有Ｍｇ２＋的海水中能孵出少量畸形仔鱼；低Ｋ＋对黑鲷受 精卵孵化无明显影响，但对早期仔鱼的影响明显。针对咸淡水域海水鱼类育苗的特 点，提出了调配海水中适宜的Ｍｇ２＋／Ｃａ２＋为２．９ ０～３．３ ０和Ｃａ２＋，Ｍｇ２＋绝对量分别 为 ２９０～３３０ｍｇ／Ｌ和 ８７０～１０００ｍｇ／Ｌ。其结果在 １９９２年和 １９９３年的生产性育苗 中得到验证。
In 1992 and 1993, artificial sea water with different concentrations of Calcium, Magnesium and Potassium were prepared for the hatching of the fertilized eggs and the incubation of yolk sca fry of Sparus macrocephalus. The results of experiment were as follows: none of yolk sca fry was hatched in the calciumfree sea water and a small amount of abnormal yolk sca fry were hatched in magnesium-free sea water, and there was no significant effect of low potassium on the hatching of the fertilized eggs but quite significant on the survival of yolk sea fry. In view of nursing of seawater fish in brackish water, we suggested that the amount of Ca2+ and Mg2+ should be controlled in the range of 290-330 mg/L and 870- 1 000mg/L, respectively, and the ratio value of Mg: Ca should be controlled between 2. 90-3. 30. The results had been qualified in the productive nursing in 1992 and 1993.
出处
《海洋科学》
CAS
CSCD
北大核心
1995年第5期33-38,共6页
Marine Sciences
关键词
海水
黑鲷
胚胎
早期仔鱼
钙离子
银离子
Sparus macrocephalus, Embyro, Yolk sca fry, Ca2+, Mg2+, K+
