摘要
报道了中华绒螯蟹育苗用水调配原则与不同基础水调配方法的研究结果。育苗用水调配的基本原则是Ｍｇ２＋与Ｃａ２＋含量及Ｍｇ２＋／Ｃａ２＋比值（Ｒ）必须达到一定的范围。以鱼塘水与深井水作基础水时，需分别添加６种与１０种化学药品，其中Ｍｇ２＋与Ｃａ２＋含量及Ｒ值可适范围均分别为４８４～８１６ｍｇ／Ｌ与１７８～３４０ｍｇ／Ｌ，Ｒ值均为２．０～３．０。研究表明，以河口水育苗最为经济，如盐度或Ｍｇ２＋与Ｃａ２＋含量及Ｒ值不在可适范围内，则可淡水稀释或添加浓缩海水，并将Ｍｇ２＋与Ｃａ２＋含量及Ｒ值调配到合适范围。
Mixed principles and methods with different basic water for rearing larva of Chinese mitten crab (Eriocheir sinensis) were studied from 1995 to 1996 on the Ping Hu Fisheries Test Farm of Zhejiang Province. The results were as follows: Using freshwater as the basic water in the fish pond for rearing larva, six chemical reagents(MgSO 4,CaCl 2,KCl,FeCl 3,H 3BO 3,NaCl) must be added to the basic water. Using deep well water as the basic water the above 6 chemical reagents and KBr,KI,Na 2H 2PO 4,CuSO 4 must be added to the basic water. The suitable contents of Mg 2+ and Ca 2+ in both the mixed water were 484～816mg/L and 178～340mg/L respectively at Mg 2+ /Ca 2+ (R) of 2.0～3.0. The study showed rearing larva with alongshore estuary water was the most economical way. If the contents of Mg 2+ ,Ca 2+ or R were not in the above suitable ranges,the basic water could be diluted with freshwater,or concentrated seawater could be added to the basic water,then the contents of Mg 2+ ,Ca 2+ or R could be mixed to the above suitable ranges.
出处
《水产学报》
CAS
CSCD
北大核心
1998年第2期111-116,共6页
Journal of Fisheries of China
关键词
中华绒螯蟹
调配水
镁
钙
人工繁殖
出苗率
Eriocheir sinensis,Mixed water, Magnesiumion, Calciumion, Artificial propagation,Survival rates
