A diel study of the neuston and plankton bacteria in an Antarctic pond
A diel study of the neuston and plankton bacteria in an Antarctic pond
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南极池塘中中子菌和浮游生物细菌的昼夜研究
DOI：
10.1017/s0954102091000081
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发表时间：
1991
影响因子：
1.6
通讯作者：
R. Herwig
中科院分区：
文献类型：
--
作者：
J. Maki;R. Herwig
在南半球夏末的24小时内，在安弗斯岛帕尔默站附近的一个小淡水池塘（64° 45'S，64° 05 'W）每6小时取样一次，以研究浮游生物和浮游生物种群水平和活动的变化。总细菌使用吖啶橙子和落射荧光显微镜，计数的活菌落形成单位，叶绿素a进行了测定。通过测量3 H-胸苷掺入率估计活性。这些数据表明，在这段时间内，细菌浮游生物种群经历了昼夜波动，温度可能是这个周期中的一个重要因素。虽然细菌浮游生物种群往往比相应的浮游生物种群更多，地下细菌似乎代谢更活跃。
A small freshwater pond near Palmer Station, Anvers Island, (64° 45'S, 64° 05'W) was sampled every 6 h over a 24 h period during the late austral summer to examine changes in both neuston and plankton population levels and activity. Total bacteria using acridine orange and epifluorescence microscopy, counts of viable colony-forming units, and chlorophyll a were determined. Activity was estimated by measuring the rate of 3H-thymidine incorporation. The data indicate that over this time period the bacterioneuston populations went through a diel fluctuation and temperature may be an important factor in this cycle. Although the bacterioneuston populations were often more numerous than corresponding plankton populations, subsurface bacteria appeared to be metabolically more active.