舟山市海洋贝类生物体内的细菌学研究

Study on Bacteriology of Shellfish Organisms in Zhoushan City

对浙江省舟山市各区县海洋贝类体内细菌数量及优势细菌种类进行了初步研究。根据2004年8月的采样和实验室分析,结果表明,贝类生物体内的优势种为少动鞘氨醇单胞菌、温和气单胞菌、欧文氏菌属等,一些能够诱发疾病的如杀鲑气单胞菌、溶藻弧菌、腐败假单胞菌等的出现应当引起重视。对生物体内的细菌数量检测发现,弧菌和粪大肠菌群数量都比较高,弧菌的测值范围为50个/克~1.8×104个/克,几何平均为9.3×102个/克;粪大肠菌群的测值范围为2.0~23个/克,几何平均为12.0个/克,超国家海洋生物体内粪大肠菌群二类标准,超标率为91.7%。

The quantity and dominant species of bacteria on the shellfish organisms were studied in this paper in every districts of Zhoushan in August 2004.The results showed that the dominant species of bacteria were Sphlingomonas paucimobilis,Aeromonas sobria,Erwinia spp and so on.Some kinds of bacteria like Aeromonas salmonicida,Vibrio alginolyticus and Alteromonsd putrefaciens,which might lead to diseases,had been found,so we should pay much attentions to that.The result also showed that vibrio and fecal coliform quantity were high.The vibrio quantity ranged from 50 cell/g to 1.8×10~4 cell/g with geometric mean of 9.3×10~2 cell/g.The fecal coliform quantity ranged from 2.0 cell/g to 23 cell/g with geometric mean of 12.0 cell/g,which was above the second standard of marine organisms.The over standard rate was 91.7%.