盐度对大獭蛤胚胎发育的影响  

Influence of Salinity upon the Embryogenesis of Lutraria maxima Janas

作　　者：李琼珍[1] 陈瑞芳[1] 童万平[1] 蒋艳[1] 

机构地区：[1]广西海洋研究所,广西北海536000

出　　处：《广西科学院学报》2004年第1期33-34,共2页Journal of Guangxi Academy of Sciences

基　　金：广西科技计划资助项目 (合同编号 :桂科海 0 13 3 0 0 8-1)

摘　　要：在广西海洋研究所古城海水养殖实验基地进行人工养殖大獭蛤 (L utraria maxima Jonas)的实验。实验把大獭蛤精、卵置于盐度为 2 1.3‰、2 4 .0‰、2 6 .6‰、2 9.3‰、31.9‰、34.6‰、37.3‰的海水中静水受精及孵化 ,从人工受精开始到 D型幼虫期连续观察盐度对胚胎发育情况。每个海水盐度设 3个重复 ,海水温度保持恒温 (2 8.7℃ )。实验结果表明 ,大獭蛤的受精过程和受精卵发育过程都受到海水盐度的影响 ,大獭蛤能正常受精的适宜盐度为 2 9.3‰～ 31.9‰ ,大獭蛤受精卵正常发育的适宜盐度为 2 6 .6‰～ 31.9‰。The Lutraria maxima breeding trial was conducted in Gucheng Mariculture Experiment Station of Guangxi Institute of Oceanography. The eggs of L. maxima were fertilized and hatched in different salinities of 21.3‰, 24.0‰, 26.6‰, 29.3‰, 31.9‰, 34.6‰, and 37.3‰ at 28.7℃. Three replications for each treatment were set to test the effects of salinity on embryonic development of the eggs. The observation on the embryonic development from fertilized eggs to D-larvae was carried out. The results show that seawater salinity has some impacts on the fertilization and embryogenesis of the eggs of L. maxima. The favourite salinities for normal fertilization and embryogenesis of L. maxima eggs are 29.3‰ to 31.9‰ and 26.6‰ to 31.9‰ ,respectively.

关 键 词：盐度 大獭蛤 胚胎发育 人工养殖 异齿亚纲 海水贝类 

分 类 号：S968.3[农业科学—水产养殖]