欢迎访问动物学杂志

首页关于本刊期刊订阅编委会作者指南过刊浏览

罗杰,杜涛,刘楚吾,陈加辉.2010.不同盐度、pH条件下氨氮对管角螺稚贝毒性影响.动物学杂志,45(3):102-109.

不同盐度、pH条件下氨氮对管角螺稚贝毒性影响

Toxic Effects of Ammonia to Hemifusus tuba Juveniles at Different pH and Salinity

投稿时间：2009-11-19 修订日期：2010-02-04

DOI：

中文关键词: 管角螺稚贝盐度 pH 氨氮毒性

英文关键词:Hemifusus tuba Juveniles Salinity pH Ammonia Toxicity

基金项目:广东省科技计划项目(No.2005B33201011)

作者	单位	E-mail
罗杰	广东海洋大学水产学院湛江 524025 南海水产经济动物增养殖广东普通高校重点实验室湛江 524025	liucw@gdou.edu.cn
杜涛	广东海洋大学科技园湛江 524025
刘楚吾	广东海洋大学水产学院湛江 524025 南海水产经济动物增养殖广东普通高校重点实验室湛江 524025
陈加辉	广东海洋大学水产学院湛江 524025 南海水产经济动物增养殖广东普通高校重点实验室湛江 524025

摘要点击次数: 2228

全文下载次数: 3264

中文摘要:

在水温28.5℃,采用实验生态学方法研究了不同盐度、pH条件下氨氮对管角螺(Hemifusustuba)稚贝[壳高(11.3±0.11)mm,n=30]毒性的影响。结果表明,(1)盐度对氨氮的毒性有较大影响,随着盐度的降低,氨氮在水体中的毒性增强;盐度为16、19、23和28,总氨氮对稚贝的96h半数致死浓度(96hLC₅₀)分别为36.5、43.7、52.6和58.8mg/L,安全浓度(SC)为3.7、4.4、5.3和5.9mg/L。(2)氨氮在水体中的毒性随pH的升高而增强,pH为7.6、8.0、8.4和8.8时,总氨氮对稚贝的96hLC₅₀依次为58.3、54.5、50.6和20.2mg/L,对应的SC依次为5.8、5.5、5.1和2.0mg/L。氨氮在pH8.8时对稚贝的96hLC₅₀急剧下降,其毒性是在pH7.6时的2.9倍。

英文摘要:

In this paper,under water temperatures 28. 5℃ ,the toxic effects of ammonia to Hemifusus tuba juveniles ( shells high 11. 3 ± 0. 11 mm,n = 30 ) were studied at different pH and salinity with ecological method. The result showed that salinity has significantly effect on the toxicity of ammonia. The toxicity of ammonia in water became stronger when the salinity was lower. When salinity was 16,19,23 and 28 respectively,the 96hLC₅₀ of total ammonia to H. tuba juveniles were 36. 5,43. 7,52. 6 and 58. 8 mg /L respectively,and equivalent the safe concentration (SC) of total ammonia to the juveniles were 3. 7,4. 4,5. 3 and 5. 9 mg /L,respectively. The toxicity of ammonia in water became stronger in higher pH than in lower. The 96hLC₅₀ and the SC of total ammonia to H. tuba juveniles were 58. 3,54. 5,50. 6,20. 2 mg /L and 5. 8,5. 5, 5. 1 and 2. 0 mg /L,respectively. The 96hLC₅₀ of total ammonia to H. tuba juveniles fell rapidly when pH was 8. 8,and toxicity of ammonia in water became 2. 9 times higher than in pH 7. 6.

附件

查看全文查看/发表评论下载PDF阅读器