Brenner, R. J. LUMCON, rbrenner@lumcon.edu
Dagg, M. J. LUMCON, mdagg@lumcon.edu
Ortner, P. B. NOAA, ortner@aoml.noaa.gov

 
MICROPLANKTON GROWTH AND GRAZING DYNAMICS IN FLORIDA BAY, USA
 
At four sites in Florida Bay, bi-monthly experiments were conducted from September 1997 to July 1998 to determine phytoplankton growth rates (k/day) and microzooplankton grazing rates (g/day). Rates are based on fluorometric analysis of chlorophyll a. Phytoplankton growth rates varied from a low of 0.02/d in September 1997 to a high of 1.32/d in May 1998. Microzooplankton grazing rates varied from a low of 0.19/d in March 1998 to a high of 0.76/d in May 1998. With few exceptions, grazing was a significant and important source of mortality for the phytoplankton community (grand mean of 66 %). We anticipate that the detailed analysis currently being done of species composition of phytoplankton and microzooplankton in these experiments will contribute greatly towards understanding why certain species of phytoplankton escape grazing and form blooms in Florida Bay.
 
Day: Wednesday, Feb. 3
Time: 10:30 - 10:45am
Location: Hilton of Santa Fe
 
Code: CS60WE1030H