Abstract：Acute toxicity of Mn2+ to pentactula, and juvenile sea cucumber Apostichopus japonicus was studied using a probabilistic method and using“coma and death” as an indicator. The coma median effect concentration (EC50 ) of Mn2+ to pentactula was found to be 220. 5 mg/L for 24h, 197. 8 mg/L for 48h and 173. 7 mg/L for 96 h, with safe concentration (SC) of 47. 8 mg/L ;the lethal EC50 of Mn2+ to pentactula was 207. 6 for 48h and 177. 3 mg/L for 96 h. The coma EC50 of Mn2+ to juveniles was 148. 6 mg/L for 24h, 112. 6 mg/L for 48h and 105. 9 mg/L for 96 h, with SC of 19. 4 mg/L ;the lethal EC50 of Mn2+ to ju‐veniles was 189. 4 for 24h, 125. 9 for 48h and 105. 9 mg/L for 96 h, with SC of 16. 7 mg/L. The coma EC50 of Mn2+ to large juveniles was 315. 4 for 24h, 253. 3 for 48h and 149. 0 mg/L for 96 h, with SC of 49. 0 mg/L ;the lethal EC50 of Mn2+ to large juveniles was 250. 7 for 48h and 149. 0 mg/L for 96 h. The pentactula and large juvenile sea cucumber had stronger tolerance of M n 2+ than juveniles did.
收稿日期: 2014-12-25
引用本文:
黎奥,刘鹏,姜玉声,韩毓,雷衍之,刘谞. M n2＋对仿刺参幼体的急性毒性试验[J]. 水产科学, 2014, (12): 820-825.
LI Ao,LIU Peng,JIANG Yu-sheng,HAN Yu,LEI Yan-zhi,LIU Xu. Acute Toxicity of Mn2+ to Larval Sea Cucumber Apostichpus japonicus. Fisheries Science, 2014, (12): 820-825.
