东沙港沿岸贝类毒性监测与探讨

Discussion and Toxicity Monitoring on Economic Shellfish of Coast of Dongsha Port

目的了解东沙港沿岸织纹螺体内带毒情况、消长规律及与其养殖在一起的鲜贝、毛贝、蛤蜊等经济贝类是否带毒,为经济贝类食用安全提供科学依据。方法用小鼠生物测试法测定织纹螺、鲜贝、毛贝、蛤蜊各8份样品的毒性。结果8份织纹螺普遍带毒,均大于400MU/100g,6月份毒性最强,达到1246MU/100g鲜肉重;24份共同养殖的其他经济贝类,毒素含量均小于175MU/100g。结论本调查结果显示应严格禁止食用该地区的织纹螺,与织纹螺养殖在一起的经济贝类没有带毒,食用安全。

Objective To understand the situations of toxicity in Nassarius Sp, and growth and decline law, and the toxicity in economic shellfish cultured with Nassarius Sp, such as fresh scallop, ark shell, clam, etc. , and provide scientific basis for food safety of shellfish, Method The concentration of toxins of Nassarius Sp, fresh scallop, ark shell, and clam were determined by mouse bioassay. Results 8 portions of Nassarius Sp were universal poisonous in Dongsha port, and the concentration of toxins were more than 400 MU/100 g fresh meat weight, It was most poisonous in June, and the concentration of toxins could reach 1 246 MU/100 g, The concentrations of toxins in 24 economic shellfish cultured with Nassarius Sp together were less than 175 MU/100 g. Conclusion It was suggested that the Nassarius Sp in Dongsha port should be forbidden to eat strictly. Other economic shellfish cultured with Nassarius Sp together were innocuous and edible.