| 摘要: |
| 试验研究分毒素累积和解毒两个阶段, 文蛤(Meretrix meretrix)对麻痹性贝毒(Paralytic ShellfishPoisoning, PSP)的累积能力试验中每天投喂一定量塔玛亚历山大藻(Alexandrium tamarense), 定期测定文蛤体内的毒素含量; 解毒试验通过投喂饵料和水体消毒的“内排外解”法进行。结果表明: 文蛤对麻痹性贝毒的累积能力较弱, 累积试验末期(15 d)的内脏毒素累积量仅为884 μg/100g, 内脏中毒素累积量高于肌肉,占全贝的77.4%～89.1%。15 d 的解毒试验中, 三组文蛤体内的毒素含量都有下降, 对照组毒素排出量占总累积量的30.1%, 臭氧处理组占32.8%, “内排外解”法处理组毒素排出比例最高, 达总累积毒素的47.2%。试验表明,“内排外解”法能加快文蛤体内PSP 的排出。 |
| 关键词: 麻痹性贝毒 文蛤(Meretrix meretrix) 塔玛亚历山大藻(Alexandrium tamarense) 累积 净化 内排外解 |
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| 基金项目:上海市教委发展基金项目(科03-125); 上海市教委重点学科建设项目(J50701) |
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| Accumulation and detoxification of paralytic shellfish poison (PSP) in hard clam Meretrix meretrix |
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| Abstract: |
| There were two stages in the experiment, accumulation and detoxification. Accumulation PSP by hard clam Meretrix meretrix achieved by feeding clams certain amount paralytic shellfish poison (PSP) every day and detecting PSP periodically. The detoxification was determined by method of “inner discharge and out purification”. We found that the clam had a low ability to accumulate PSP. It reached to 884 μg /100g after exposed to toxic Alexandrium tamarense for 15 d and the toxins in the viscera were higher than in other muscles, accounting to 77.4%～89.1%. The amounts of PSP decreased in three groups with the elimination rates of the control group 30.1%, ozone purified group 32.8%, group of inner discharge and out purification 47.2% during detoxification. This research showed that “inner discharge and out purification” could accelerate PSP detoxification. |
| Key words: Paralytic Shellfish Poisoning(PSP) Meretrix meretrix Alexandrium tamarense accumulation detoxification “Inner discharge and out purification” |
