咸海卡拉白鱼胚胎及仔鱼对盐碱耐受性的研究  

Studies on Tolerance of Embryo and Larva of Chalcalbumus chalcoides aralensis to Salinity and Alkalinity

作　　者：姜秋俚[1] 蔺玉华[1] 王信海[1] 耿龙武[1] 刘博[2] 

机构地区：[1]中国水产科学院黑龙江水产研究所 [2]吉林农业大学园艺学院,长春130118

出　　处：《吉林农业大学学报》2008年第2期219-225,228,共8页Journal of Jilin Agricultural University

基　　金：黑龙江省国际科技合作项目(WC04207);农业部“948”引进项目(963086);国家外专局推广项目(Y20052300002)

摘　　要：用NaCl和NaHCO3分别处理卡拉白鱼（Chalcalburnus chalcoides aralensis）受精卵和仔鱼,观察其发育状况。结果表明：鱼胚发育的适宜盐度为0-9 g/L,孵化率均在90%以上,最高盐度不能超过10 g/L;鱼胚发育的适宜碱度为3.42-37.81 mmol/L,孵化率均在90%以上,最高碱度不能高于57.31 mmol/L。仔鱼急性毒性试验结果表明：处理24,48,72 h的半致死浓度（LC50）NaCl分别为11.32,11.91,9.16 g/L,NaHCO3分别为54.30,23.63,19.86 mmol/L。Chalcalbumus chalcoides aralensis were exposed to differeut concentrations of NaCI and Nail- CO3 respectively, then embryonic development was observed. Embryonic development in the NaCl with concentrations ranging from 0-9 g/L was suitable, and the hatching rate was above 90%. Tolerance of embryonic development to NaCl can not exceed 10 g/L. Embryonic development in the alkalinity ranging from 3.42-37.81 mmol/L was suitable, and the hatching rate was above 90% .Tolerance of embryonic development to alkalinity can not exceed 57.31 mmol/L. Tolerance of larval Chalcalburws chalcoides aralenee to NaCl and alkalinity was studied. Through the experiment of acute toxicity, the 24,48, 72 h medium lethal concentration（LD50） values were obtained, which are 11.32,11.91,9.16 g/L for NaCl, and 54.30,23.63,19.86 mmol/L for alkalinity.

关 键 词：咸海卡拉白鱼 胚胎 仔鱼 盐度 碱度 

分 类 号：S965.116[农业科学—水产养殖]