摘要
非离子态氨氮(NH_3-N)对罗氏沼虾幼体毒性试验结果表明,罗氏沼虾幼体24小时半致死(LC_50)的NH_3-N浓度值为4.109毫克/升左右,100％死亡(LC)的NH_3-N值为5.061毫克/升;48小时NH_3-N的LC_50值范围为1.015～2.112毫克/升,LC值为3.127毫克/升;生产池中的NH_3-N值较低,对罗氏沼虾幼体的生长蜕壳没有什么明显的不利影响。
The experiment was conducted for 24 and 48 hours to determine the median lethal conoerntation (Lc50) and lethal concerntration (LC) of unionized ammonia (NH3-N) to larvae of .Mocrobrichnum rosenbergii . The remits showed that 24-and 48-h LC50 for exposure to unionized ammonia were about 4.109 and between 1.105 and 2. 112mg/1 NH3-N,respecticely. The 24-and 48-h LC for exposure to unionized ammonia were 5. 061 and 3. 127mg/1 NH3-N. respectively.
出处
《水产养殖》
CAS
1994年第5期18-20,共3页
Journal of Aquaculture
关键词
罗氏沼虾
幼体
半致死浓度
氨
氮
Larvae of Macrobrichium rosenbeigii Unionized ammonia Median lethal concernttation (LC_(50))
