摘要
通过对1991～1998年的胶州湾10个常规监测站的有关微生物方面的分析研究，发现胶州湾水域中异养细菌、大肠菌群、石油降解菌的数量普遍较高，三者在表层水体中的最高值分别达1．1×106，4.6×104，4.6×102个／ml；异养细菌和大肠菌群的数量在胶州湾沿岸区域数量最高，湾心、湾口、湾外数量减少；大肠菌群和异养细菌的数量随季节变化明显，夏天数量多，冬天数量少，春、秋数量居中，与水温有着紧密的关系；石油降解菌的数量一年四季变化不大；异养细菌和大肠菌群之间存在着相关关系，且二者的数量与水域中的溶解有机碳、无机氮、无机磷等营养盐的含量有着一定的关系。
Results of Over 8 years of experience in the determination of the bacteria in the Jiaozhou Bay was presented. It showed that the number of heterotrophic bacteria, coliform bacteria and oil decomposing bacteria in this area was high, its number was 1. 1 × 106 cell/ml, 4. 6 × 104 cell/ ml and 4. 6 ×102 cell/100ml respectively. There was a similar spacial pattern of het erotrophic bacteria and coliform bacteria, the number of these two kinds of bacteria was high in the stations near beach and city,and low in the stations either in the core bay or outside the bay. That could be charaterized by a progressive decrease in off shore direction. The data also showed that there was a regular seasonal pattern of heterotrophic bacteria and coliform bacteria, the number of these two kinds of bacteria was highest in summer, lowest in winter, and medium in spring and autumn. The seasonal number variations seemed to be mainly controlled by the water temperature. Oil decomposing bacteria did not have either temporal or spacial pattern, its number during four seasons of these 8 years in the Jiaozhou Bay had little fluctuations. The results also indicated that there was a positive correlation between heterotrophic bacteria and coliform bacteria, its relative coefficient was r2= 0. 76. The number of heterotrophic bacteria and coliform bacteria in the Jiaozhou Bay had a relationship with the supply of nutrients, such as COD, NH+4,NO-3, No-2, PO 4 and so on, It preliminarily showed that the different spacial distribution of hetertrophic bacteria and coliform bacteria was due to the supply of nutrients.
出处
《海洋科学》
CAS
CSCD
北大核心
2000年第1期37-39,共3页
Marine Sciences
基金
中国科学院重点基金!39630060
中国科学院特别支持项目!KZ95T-04-04
关键词
胶州湾
异养细菌
大肠菌群
石油降解菌
海水
Jiaozhou Bay, Heterotrophic bacteria, Coliform bacteria, Oil decomposing bacteria
