水生生物学报2024，Vol.48Issue(2)：204-210,7.DOI:10.7541/2023.2023.0136
氨对褶纹冠蚌钩介幼虫及稚蚌的急性毒性
ACUTE TOXICITY OF AMMONIA TO GLOCHIDIA AND NEWLY TRANSFORMED JUVENILE OF CRISTARIA PLICATA
摘要
Abstract
To investigate the toxic effects of ammonia on the early life history stages of mussels,we selected glochidia and newly transformed juveniles of Cristaria plicata,a common mussel species in the middle and lower reaches of the Yangtze River,and conducted 24h and 48h acute toxicity tests to assess the effects.The results showed that:the 24h lethal concentration of 50％(LC50)of ammonia in glochidia of Cristaria plicata was 0.63 mg NH3-N/L(NH3-N,unio-nized-ammonia nitrogen)or 78 mg TAN7.0,20℃/L(TAN,standardized total ammonia nitrogen that pH 7.0 and water temperature of 20℃).The 48h LC50 of ammonia in newly transformed juveniles of Cristaria plicata was 0.60 mg NH3-N/L or 104 mg TAN7.0,20℃/L.The LC50 of ammonia to Cristaria plicata was higher compared to other freshwa-ter mussels species reported both domestically and internationally.The early life stages of Cristaria plicata were more sensitive to ammonia compared to the later life history stages.The results of this study contribute to a better under-standing of ammonia toxicity on mussels and provide a scientific basis for mussels conservation and water nitrogen management strategy.关键词
分子氨/蚌类/生活史/耐受性/褶纹冠蚌Key words
Ammonia/Mussel/History of life stage/Tolerance/Cristaria plicata分类
资源环境引用本文复制引用
乔瑞婷,李艳,刘苗,赵永晶,舒凤月,崔永德..氨对褶纹冠蚌钩介幼虫及稚蚌的急性毒性[J].水生生物学报,2024,48(2):204-210,7.基金项目
国家重点研发计划(2021YFC3200103) （2021YFC3200103）
淡水生态与生物技术国家重点实验室开放课题(2019FBZ01) （2019FBZ01）
武汉市科技计划项目(2020020602012152) （2020020602012152）
武汉市政建设集团有限公司科研项目(wszky202014)资助[Supported by National Key Research and Development Program of China(2021YFC3200103) （wszky202014）
State Key Laboratory of Freshwater Ecology and Biotechnology(2019FBZ01) （2019FBZ01）
the Wuhan Science and Technology Plan Project(2020020602012152) （2020020602012152）
the Research Project of Wuhan Municipal Construction Group Co.,Ltd.(wszky202014)] （wszky202014）
