珠江口及邻近海域贝类麻痹性毒素调查

<title>Status of shellfish PSP in Pearl River estuary and nearby waters

于1990～1999年对珠江口、大鹏湾和大亚湾3个海域14种主要经济贝类进行麻痹性毒素(PSP)的毒性水平检测并比较其季节性变化和种间差异。采用麻痹性毒素小白鼠生物测定法测定PSP毒性水平,并以联合国粮农组织推荐的贝类安全食用标准进行分析评价。结果表明,珠江口海域的僧帽牡蛎轻微染毒(PSP),大鹏湾海域的华贵栉孔扇贝和翡翠贻贝不同程度染毒,大亚湾海域的华贵栉孔扇贝、翡翠贻贝、马氏珠母贝和棕带仙女蛤具潜在染毒危险。

<Abstrcat> From 1990 to 1999, some investigations were conducted in Pearl River estuary, Dapeng Bay and Daya Bay (South China Sea) to determine the situation of shellfish PSP in these waters. Totally 123 samples belonging to 14 species were collected and the PSP levels, PSP seasonal variation and interspecies differences were analyzed using mouse bioassay method in terms of PSP quantification. The results show that the Saccostrea cucullata in Pearl River estuary are polluted by PSP slightly and the Clamys nobilis and Perna viridis in Dapeng Bay are polluted by PSP to some extents;the C.nobilis,P.viridis, Pinctada martensi and Callista erycina are potentially polluted by PSP.