The effect of protistan bacterivory in
bacterioplankton community structure
Marcelino Suzuki, Ph.D.
Monterey Bay Aquarium Research Institute
Wednesday, January 14, 1998
3:30 p.m.MBARI Pacific Forum
Marine bacterioplankton are major components of marine biogeochemical cycles.
Bacterioplankton participate in the transfer of carbon in pelagic food webs and play
important roles on the cycles of major elements. Until recently, bacterioplankton have
been regarded as a "black box" whose components were unknown. This was mainly
due to methodological difficulties on the cultivation of marine bacterioplankton and the
identification of in situ bacterioplankton diversity. The application of molecular
biology techniques to marine microbial ecology revolutionized our views of marine
microbial diversity and allowed the discovery of several lineages of bacteria previously
unknown to exist in marine pelagic systems. Currently, the qualitative diversity of marine
bacterioplankton is relatively well known, so the major challenge facing molecular
microbial ecologists is the use of molecular biology techniques to the quantification and
characterization of the diversity and activity of uncultivated bacteria as well as its
In this seminar I will discuss the results of studies I performed for my Ph.D.
dissertation, aiming to contribute to our knowledge of the quantitative diversity of
bacterioplankton and factors controlling bacterioplankton diversity.
Next: Mapping small-scale plankton structure
Last updated: December 19, 2000