海洋科学2012，Vol.36Issue(5)：81-86,6.
氨氮和亚硝酸盐对斜带石斑鱼苗的急性毒性效应
Acute toxic effects of ammonia and nitrite on Epinephelus coioides fry
摘要
Abstract
The acute toxic effects of ammonia and nitrite on different sized fries of Epinephelus coioides were studied. The temperature was set at （25±0.5）℃, salinity 30-31, pH 7.9-8.1, and dissolved oxygen 4.5-5.5 mg/L in the experiment. The results showed that the half lethal concentrations （LCs0） and the safe concentrations of ammo- nia on the fries of E. coioides with body length 4.4 cm at 24, 48, 72 and 96 h were 5.62, 3.50, 2.93, 2.68 and 0.27 mg/L, respectively, and their corresponding non-ionic ammonia concentrations were 0.23, 0.14, 0.12, 0.11 and 0.011 mg/L, respectively. The LCs0 and the safe concentrations of ammonia on the fries with length 10.5cm at 24h, 48h, 72 and 96 h were 58.6, 56.2, 53.3, 51.4 and 5.13 rag/L, respectively, and their corresponding non-ionic ammonia concentrations were 2.41, 2.32, 2.20, 2.12 and 0.21 mg/L, respectively. The LC50 and the safe concentrations of nitrite on the fries orE. coioides with length 4.4 cm at 24, 48, 72 and 96 h were 288.4, 281.8, 270.4, 267.3 and 26.7 mg/L, respectively; The LC50 and the safe concentrations of nitrite on the fries with length 10.5 cm at 24, 48, 72 and 96 h were 354.8, 346.7, 280.5,208.4 and 20.8 mg/L, respectively.关键词
氨氮/亚硝酸盐/斜带石斑鱼（Epinephelus/coioides）苗/急性毒性Key words
Non-ion ammonia/nitrite/Epinephelus coioides/acute toxicity分类
农业科技引用本文复制引用
郑乐云..氨氮和亚硝酸盐对斜带石斑鱼苗的急性毒性效应[J].海洋科学,2012,36(5):81-86,6.基金项目
福建省石斑鱼种业创新与产业化工程建设项目 （）
