| 三种重金属离子对文昌鱼幼体的急性毒性 |
| The acute toxicity of three heavy metals on the larva of Branchiostoma belcheri |
| 投稿时间：2013-04-03 修订日期：2013-04-16 |
| DOI： |
| 中文关键词:文昌鱼 铜 锌 镉 急性毒性 |
| 英文关键词:Branchiostoma belcheri copper zinc cadmium acute toxicity |
| 基金项目:广东省自然科学基金（33981） - 大放鸡海区文昌鱼资源和环境因子调查与保护研究 |
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| 中文摘要: |
| 研究了Cu2+、Zn2+和Cd2+对广东茂名海域文昌鱼(Branchiostoma belcheri)的急性毒性。结果表明,文昌鱼在3种重金属离子水体中96h LC50分别为0.65、3.54和3.19mg/L,96h全部出砂浓度分别为0.65、2.75和2.52mg/L;结合文昌鱼出砂和96h LC50,得出3种重金属离子对文昌鱼的毒性强弱为Cu2+>Cd2+>Zn2+,且随浓度升高和受试时间延长,出砂文昌鱼的活力降低,体色加深,死亡率增加。 |
| 英文摘要: |
| This experiment studied the acute toxicity of Cu2+，Zn2+ and Cd2+on Branchiostoma belcheri，which is in the sea area of Maoming in Guangdong. The result showed that the LC50 at 96 h of B. belcheri in 3 heavy metal ions water body were 0. 65 mg/L，3. 54 mg/L and 3.19 mg/L respectively. When the concentration of Cu2+，Cd2+and Zn2+was 0. 65 mg/L, 2. 52 mg/L and 2. 75 mg/L respectively，all the B. belcheri went out from the sand at 96 h . Combining the two factors，we found the toxicity intensity ranks as Cu2+>Cd2+>Znz+. With the increment of heavy metal concentration and the extension of tested time，the B. belcheri , which were out from sand，had a decreased activity，darker body color and higher mortality. |
| 白秀娟,卢伙胜,冯 波.2013.三种重金属离子对文昌鱼幼体的急性毒性[J].水生态学杂志,34(3):81-84. |
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