摘要
采用急性毒性实验法,研究日本沼虾(Macrobrachium nipponense)对碱度和pH的适应能力,探讨内陆盐碱水域养殖的可能性.结果表明,pH对幼虾的24、48、72、96 h半数致死值分别为10.13、9.72、9.67和9.51,安全与适应范围分别为5.26～8.67、5.10～8.84.碱度对幼虾的24 h半数有效浓度为17.96mmol/L,95%置信限14.60～22.53 mmol/L;24、48、96 h半数致死浓度分别为48.95、45.15和44.96 mmol/L,95%置信限分别为45.72～50.60、39.46～51.67及34.34～55.38 mmol/L,安全碱度11.52 mmol/L.结果表明,在pH≤9.0、碱度≤20.0 mmol/L的内陆盐碱水域,可以养殖日本沼虾.
Acute toxicity of pH and alkalinity to freshwater shrimp Macrobrachium nipponense juveniles was determined in indoor by one-way toxicity test. The results showed that the median lethal pH （ LpH50） for 24,48,72 and 96 hours to juvenile shrimp were 10.13,9.72,9.67 and 9.51, respectively. The safe pH was from 5.26 to 8.67, and pH adapted was from 5.10 to 8.84. The median effect concentration （EC50） （with 95 % confidence intervals） for 24 hours of alkalinity to juvenile shrimp was 17.96（from 14.60 to 22.53 ） mmol/L. The median lethal concentration （ LC50 ） （ with 95 % confidence intervals）for 24,48 and 96 hours of alkalinity to juvenile shrimp were 48.95 （from 45.72 to 50.60）, 45.15（from 39.46 to 51.67） and 44.96（from 34.34 to 55.38） mmol/L respectively. The safe concentration（SC） of alkalinity to juvenile shrimp was 11.52 mmol/L. Freshwater shrimp M. nipponense can be cultivated in inland salinealkali waters with pH of 9.0 and under, alkalinity of 20.0 mmol/L and under.
出处
《动物学杂志》
CAS
CSCD
北大核心
2005年第6期74-79,共6页
Chinese Journal of Zoology
基金
吉林省科技发展计划项目(No.20020227-2)
关键词
日本沼虾
幼虾
PH
碱度
适应性
Macrobrachium nipponense
Juvenile shrimp
pH
Alkalinity
Adaptability
