四种水产药物对硬刺松潘裸鲤幼鱼的急性毒性试验 |
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引用本文: | 徐滨,聂媛媛,魏开金,邓龙君,甘维熊,马宝珊,朱祥云,徐进. 四种水产药物对硬刺松潘裸鲤幼鱼的急性毒性试验[J]. 淡水渔业, 2017, 47(2) |
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作者姓名: | 徐滨 聂媛媛 魏开金 邓龙君 甘维熊 马宝珊 朱祥云 徐进 |
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作者单位: | 1. 中国水产科学研究院长江水产研究所,农业部淡水生物多样性保护重点实验室,武汉430223;2. 大连海洋大学水产与生命学院,辽宁大连116023;中国水产科学研究院长江水产研究所,农业部淡水生物多样性保护重点实验室,武汉430223;3. 雅砻江流域水电开发有限公司,成都,610015 |
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基金项目: | 中央级公益性科研院所基本科研业务费专项资金项目,雅砻江水电开发有限公司科研项目 |
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摘 要: | 在溶氧(7.0±0.3)mg/L,水温(18±1)℃,pH 7.8±0.1条件下,采用国家标准半静态方式水生生物急性毒性实验法研究了高锰酸钾、硫酸铜与硫酸亚铁合剂(5∶2)、敌百虫和甲醛对硬刺松潘裸鲤(Gymnocypris potanini firmispinatus Wu et Wu)幼鱼的急性毒性试验。试验结果显示,高锰酸钾、硫酸铜与硫酸亚铁合剂、敌百虫和甲醛对硬刺松潘裸鲤幼鱼的24 h半致死浓度(24 h LC50)分别为4.57、2.74、8.00和54.69 mg/L,48 h半致死浓度(48 h LC50)分别为4.13、2.35、7.34和47.03 mg/L;96 h半致死浓度(96 h LC50)分别为3.37、1.92、4.76和40.44 mg/L;其安全浓度分别为1.01、0.52、1.85和10.43 mg/L。根据国家标准和本实验数据表明,甲醛对硬刺松潘裸鲤幼鱼微毒,高锰酸钾、硫酸铜与硫酸亚铁合剂和敌百虫对其中毒。
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关 键 词: | 硬刺松潘裸鲤(Gymnocypris potanini firmispinatus) 水产药物 急性毒性 半致死浓度 安全浓度 |
Acute Toxicity of Four Pesticides to Gymnocypris potanini firmispinatus |
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Abstract: | The acute toxicity of four pesticides to Gymnocypris potanini firmispinatus were studied under laboratory condi-tions and room temperature. The results showed that the mean static acute 24h LC50 of permanganate, the mixture of copper ferrous sulphate (ratio 5: 2), dipterex and formaldehyde were 4. 57, 2. 74, 8. 00 and 54. 69 mg/L, respectively. The mean static acute 48h LC50 were 4. 13, 2. 35, 7. 34 and 47. 03 mg/L, respectively. The mean static acute 96h LC50 were 3. 37, 1. 92, 4. 76 and 40. 44 mg/L. The safe concentration of the fish to the four pesticides were 1. 01, 0. 52, 1. 85 and 10. 43 mg/L. It was concluded that for G. p. firmispinatus, formaldehyde was slight-toxic, while permanganate, the mix-ture of copper sulphate and ferrous sulphate (ratio 5:2) and dipterex were medium-toxic. |
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Keywords: | Gymnocypris potanini firmispinatus insecticide acute toxicity median lethal concentration safe concentra-tion |
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