Acute Toxicity of Formaldehyde to Eriocheir sinensis Zoea  

甲醛对中华绒螯蟹不同阶段幼体的毒性研究

作　　者：SUN Na WANG Yu-nong LIU Xu LEI Yan-zhi 孙娜;王雨浓;刘胥;雷衍之(盘锦光合蟹业有限公司,辽宁省中华绒螯蟹育种重点实验室,辽宁盘锦124200;大连海洋大学,辽宁大连116023)

机构地区：[1]Key Laboratory of Eriocheir sinensis Breeding,Liaoning Province,Panjin Photosynthetic Crab Industry Co.Ltd.,Panjing 124200,PRC [2]Dalian Ocean University,Dalian 116023,PRC

出　　处：《Agricultural Science & Technology》2019年第5期46-50,共5页农业科学与技术（英文版）

基　　金：辽宁省重点研发计划指导计划项目(2018203002)。

摘　　要：The acute toxicities of formaldehyde to Chinese mitten crab(Eriocheir sinensis)zoea at various stages in semi-static system were studied.Each stage larvae was set with 5 concentration gradients and a contrast,and each concentration gradient had three parallels.The LC 50 of formaldehyde to Z1 was found to be 52.029 mg/L for 24 h and 29.300 mg/L for 48 h,with safety concentration of 2.79 mg/L;LC 50 to Z2 was 76.323 mg/L for 24 h,50.892 mg/L for 48 h,with safety concentration of 6.79 mg/L;LC 50 to Z3 was 108.947 mg/L for 24 h,67.693 mg/L for 48 h,with safety concentration of 7.84 mg/L;LC 50 to Z4 was 121.414 mg/L for 24 h,75.480 mg/L for 48 h,with safety concentration of 8.75 mg/L;LC 50 to Z5 was 128.546 mg/L for 24 h,89.312 mg/L for 48 h,with safety concentration of 12.934 mg/L.采用半流水实验法,对中华绒螯蟹各期溞状幼体进行急性毒性试验,以确定甲醛对中华绒螯蟹幼体的毒性效应。结果表明:甲醛对中华绒螯蟹各期溞状幼体毒性作用明显,甲醛浓度越大,幼体死亡率越高。其中Z1的24和48 h半致死浓度分别为52.029和29.300 mg/L,安全浓度为2.79 mg/L。Z2的24和48 h半致死浓度分别为76.323和50.892 mg/L,安全浓度为6.79 mg/L。Z3的24和48 h半致死浓度分别为108.947和67.693 mg/L,安全浓度为7.84 mg/L。Z4的24和48 h半致死浓度分别为121.414和75.480 mg/L,安全浓度为8.75 mg/L。Z5的24和48 h半致死浓度分别为128.546和89.312 mg/L,安全浓度为12.934 mg/L。

关 键 词：Chinese mitten crab Acute toxicity FORMALDEHYDE Median lethal concentration Safety concentration 

分 类 号：S917.4[农业科学—水产科学] X174[环境科学与工程—环境科学]