New results in mapping small-scale
plankton structure in the ocean
Jules S. Jaffe, Ph.D.
Marine Physical Lab
Scripps Institution of Oceanography
Thursday, January 15, 1998
12:00 noonMBARI Pacific Forum
Since conventional tools for sampling phytoplankton sample very small volumes (cm3) and those for sampling zooplankton integrate over large
spatial scales, the small-scale structure of both phytoplankton and zooplankton in the sea
are largely unknown. From the ecological prospective, the distribution of algae and
animals is important in understanding how matter and energy are transferred through the
food web. Over the last several years, several new instruments have been developed and
deployed whose collective goal is to measure the small-scale structure of these plankton.
This talk will describe a sonar-imaging system, which records the positions of
individual zooplankters in volumes on the order of several cubic meters. In addition,
results from an optical-imaging system, which uses fluorescence mapping to measure
phytoplankton structure, will be presented. Together, both systems comprise a first look
into the small-scale structure of these organisms.
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Last updated: December 19, 2000