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题名: Activity and distribution of attached bacteria in Chesapeake Bay
作者: Madilyn Fletcher
Peter Griffith
Fuh-Kwo Shiah
Kathryn Gloersen
Hugh W. Ducklow
贡献者: 國立臺灣海洋大學:海洋環境化學與生態研究所
关键词: Chesapeake Bay
日期: 1994
上传时间: 2017-02-08T03:01:04Z
出版者: Marine Ecology Progress Series
摘要: Abstract: The purpose of this study was to further our understanding of the role of particle-associated bacteria in phytoplankton degradation in the Chesapeake Bay, USA, and to identify environmental parameters that control production by free and particle-associated bacteria. Surface and bottom waters at 10 stations along the length of the Bay were sampled over a 2 yr period. Samples were analyzed for temperature, salinity, chlorophyll, phaeophytin, particulate protein, thymidine incorporation (an estimate of bacterial growth rate), and bacterial total direct counts. Results demonstrated that freeliving bacteria were responsible for most of the total bacterial production, which was correlated with temperature and particulate protein, but not with chlorophyll. In contrast, attached bacteria were much more active than free-living bacteria on a per-cell basis. Cell-specific thymidine incorporation by freeliving bacteria correlated with temperature and particulate protein quantity, whereas that by attached bacteria correlated with temperature, particulate protein quantity and particulate organic quality, as indicated by extent of phytoplankton degradation.
關聯: 108
显示于类别:[海洋環境與生態研究所] 期刊論文


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