甲醛对合浦绒螯蟹的急性毒性研究  

Acute Toxicity of Formaldehyde to Mitten Hand Crab Eriocheir hepuensis

作　　者：王鹏良[1] 李伟峰[1] 符聪 王培[1] 雷娟[1] 方怀义[1] 张艳秋[1] 廖永岩[1] 

机构地区：[1]广西北部湾海洋生物多样性养护重点实验室,钦州学院海洋学院,广西钦州535011

出　　处：《水产科学》2017年第6期810-813,共4页Fisheries Science

基　　金：国家自然科学基金资助项目(41466003);广西高等学校高水平创新团队及卓越学者计划项目(GJR20144913);广西自然科学基金重点资助项目(GXNSF162222);广西北部湾海洋生物多样性养护重点实验室项目(2016ZB02);广西海洋局科技兴海项目(GXZC2015-G3-3692-GXJX);钦州市科技攻关项目(2015270601)

摘　　要：在水温24~30℃、溶解氧5mg/L及pH 8.5~8.8条件下,采用急性毒性试验方法,研究不同含量甲醛对质量约16g的合浦绒螯蟹的急性毒性。结果表明,48h以内,甲醛质量浓度低于500mg/L对合浦绒螯蟹的存活率和存活时间无显著影响(P>0.05),96h以内,甲醛质量浓底低于250mg/L对合浦绒螯蟹的存活率和存活时间无显著影响(P>0.05);甲醛对合浦绒螯蟹的12、24、36、48、60、72、84、96h半致死质量浓度分别为1991.788、1644.522、1273.757、1724.642、1177.963、1147.138、963.129、873.590mg/L,安全质量浓度为87.359mg/L。An acute toxicity test of formaldehyde at various concentrations to Chinese mitten handed crab Eriocheir hepuensis with body weight of about 16 g was carried out at water temperature of 9,4--30℃, di- solved oxygen of 5 mg/L and pH of 8. 5--8. 8 by an acute toxicity method. The results showed that there was no significant effect of formaldehyde at concentration of below 500 mg/L on the survival rate within 48 h （P〉0.05）. No significant effect on the survival rate and survival period was observed within 96 h at formaldehyde at concentration of below 250 mg/L （P）0.05）. The LCs0 values of formaldehyde was found to be 1991. 788 mg/L in 12 h, 1644. 522 mg/L in 24 h, 1273. 757 mg/L in 36 h, 1724. 642 mg/L in 48 h, 1177. 963 mg/L in 60 h, 1147. 138 mg/L in 72 h, 963. 129 mg/L in 84 h, and 873. 580 mg/L in 96 h, with safe concentration of 87. 359 mg/L. The findings will provide a theoretical basis and practical reference for the water treatment, disease prevention and control and improvement of survival rate of Chinese mitten handed crab during breeding.

关 键 词：合浦绒螯蟹 甲醛 存活率 存活时间 摄食量 

分 类 号：S968.25[农业科学—水产养殖]