RELATIVE MICROBIAL ACTIVITY AND BACTERIAL CONCENTRATIONS IN WATER AND SEDIMENT SAMPLES TAKEN IN BEAUFORT SEA
RELATIVE MICROBIAL ACTIVITY AND BACTERIAL CONCENTRATIONS IN WATER AND SEDIMENT SAMPLES TAKEN IN BEAUFORT SEA
复制标题
DOI：
10.1139/m78-196
复制
发表时间：
1978-01-01
影响因子：
2.8
通讯作者：
MORITA, RY
中科院分区：
文献类型：
--
作者：
GRIFFITHS, RP;HAYASAKA, SS;MORITA, RY
对取自波弗特海西南部的总共 91 个水、8 个冰和 50 个沉积物样本进行了相对微生物活性、细菌细胞浓度和呼吸百分比（矿化）分析。这些样本是在 3 个实地研究期间采集的（1975 年 8 月至 9 月；1976 年 4 月；1976 年 8 月）。 4月（冬季）采样期间水和沉积物样品中的相对微生物活性和细胞浓度低于8月至9月。 （夏季）学习。冬季水样中标记谷氨酸的呼吸百分比高于夏季水样。水样显示出比沉积物样品更高的呼吸值百分比。谷氨酸吸收的平均最大潜在速率与在更温带水域进行的研究中观察到的一样高或更高。融化的海冰样本显示出相对微生物活性水平，与相关海水中发现的微生物活性水平大致相同。当分析融冰和海水按 1:1 混合的微生物活性变化时，几乎检测不到任何影响。
A total of 91 water, 8 ice and 50 sediment samples taken from the southwestern Beaufort Sea were analyzed for relative microbial activity, bacterial cell concentrations and percentage of respiration (mineralization). These samples were taken during 3 field-study periods (August to Sept. 1975; April 1976; and Aug. 1976). The relative microbial activity and the cell concentrations in water and sediment samples were lower during the April (winter) sampling period than in the Aug.-Sept. (summer) studies. The percentage of respiration of labeled glutamic acid was higher in the winter water samples than in the summer samples. The water samples showed higher percentage of respiration values than did sediment samples. The average maximum potential rate of glutamic acid uptake was as high or higher than those observed in studies made in more temperate waters. Samples of melted sea ice showed levels of relative microbial activity that were about the same as that found in the associated seawater. When 1:1 mixtures of melted ice and seawater were analyzed for altered microbial activity, little effect could be detected.