摘要
[目的]研究氨氮和亚硝酸氮对偏顶蛤的急性毒性,为合理调控偏顶蛤水体中氨氮与亚硝酸氮提供参考价值。[方法]采用常规生物毒性试验方法,研究偏顶蛤对氨氮和亚硝酸氮毒性的耐受力。[结果]氨氮对偏顶蛤的半致死浓度96 h LC50为158.85 mg/L,安全浓度(SC)为15.89 mg/L;非离子氨对偏顶蛤半致死浓度96 h LC50为14.06 mg/L,安全浓度(SC)为1.41 mg/L。亚硝酸氮对试验蛤的半致死浓度96 h LC50为54.20 mg/L,安全浓度(SC)为5.42 mg/L。[结论]与亚硝酸盐相比,偏顶蛤对总氨氮毒性的耐受力更强,非离子氨对偏顶蛤的毒性最强。
[Objective] To research the acute toxicity of ammonia nitrogen and nitrite to Modiolus modiolus, and to provide references for the rational adjustment of ammonia nitrogen and nitrite nitrogen in M. modiolus. [ Method] Conventional biological toxicity test was used to research the tolerance of M. modiolus to ammonia nitrogen and nitrite. [ Result] The 96 h LC50 of total ammonia nitrogen, non-ionic ammonia nitrogen and nitrite nitrogen to M. modiolus were 158.85, 14.06 and 54.20 mg/L, respectively. And the safe concentrations （SC） of total ammonia nitrogen, non-ionic ammonia nitrogen and nitrite nitrogen to the mussels were 15.89, 1.41 and 5.42 mg/L, respectively. [ Conclusion ] M. modiolus has stronger tolerance to total ammonia nitrogen toxicity than nitrite nitrogen, and the high toxicity occurs in non-ionic ammonia nitrogen.
出处
《安徽农业科学》
CAS
2016年第8期115-117,共3页
Journal of Anhui Agricultural Sciences
基金
国家海洋局海洋公益项目(201505016)
辽宁省科技攻关重大项目(2015203003)
关键词
偏顶蛤
非离子氨
亚硝酸氮
耐受力
Modiolus modiolus
Non-ionic ammonia nitrogen
Nitrite nitrogen
Tolerance
