CAJ | 학술논문

为丰富微山湖河蟹养殖水域生态系统健康评价体系，对其水体和底泥中可培养异养细菌群落结构及多样性进行了采样调查．调查显示，该水域优势菌的优势度高，多样性指数低．在出现的25种菌落中，优势菌为芽孢杆菌、链球菌属和气单胞菌属．水体中优势菌的优势度为43．75％，多样性指数 H为1．542；底泥中优势菌的优势度为55．56％，多样性指数 H为0．9949．参照沈韫芳多样性指数标准，微山湖河蟹养殖水域受中到重度污染，水体富营养化严重，须加强保护治理措施．
위봉부미산호하해양식수역생태계통건강평개체계，대기수체화저니중가배양이양세균군락결구급다양성진행료채양조사．조사현시，해수역우세균적우세도고，다양성지수저．재출현적25충균락중，우세균위아포간균、련구균속화기단포균속．수체중우세균적우세도위43．75％，다양성지수 H위1．542；저니중우세균적우세도위55．56％，다양성지수 H위0．9949．삼조침운방다양성지수표준，미산호하해양식수역수중도중도오염，수체부영양화엄중，수가강보호치리조시．
In order to enrich the evaluation system of water cultivation ecosystem ,we examined the community structure and diversity of cultivable heterotrophic bacteria in the Weishan Lake , Shandong Province .We found that the diversity of bacteria in this lake was low .There existed 25 types of cultivable heterotrophic bacteria and the dominant types were Bacillaceae ,Streptococcus and Aeromonas .The index H was 1 .542 in water columns and 0 .9949 in sediments .According to the standard of Shannon-Wiener index (H) ,the pollution degree of Weishan Lake was moderate to severe and the level of Lake Eutrophication was high .Effective measures should be taken to protect the lake ecosystem .