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Food Webs

FCE scientists discovered that decomposing plant material, rather than the plants themselves, supports the freshwater food web. When exported to coastal waters, this material also supports substantial marine plant and animal life.

Maie, N., J.N. Boyer, C. Yang, R. Jaffe. 2006. Spatial, geomorphological, and seasonal variability of CDOM in estuaries of the Florida Coastal Everglades. Hydrobiologia 569: 135-150.
Boyer J.N., S.K. Dailey, P.J. Gibson, M.T. Rogers, D. Mir-Gonzalez. 2006. The role of dissolved organic matter bioavailability in promoting phytoplankton blooms in Florida Bay. Hydrobiologia 569:71-85.
Jaffe, R., D. McKnight, N. Maie, R. Cory, W.H. McDowell, J.L. Campbell. 2008. Spatial and temporal variations in DOM composition in ecosystems: The importance of long-term monitoring of optical properties. Journal of Geophysical Research - Biogeosciences 113: G04032.
Rudolf Jaffe
Michael Heithaus, FCE Co-PI, prepares to place a GPS tag on an alligator. Using these, and much smaller acoustic transmitters, FCE researchers have been able to show that some alligators commute from marine waters where they feed to the ecotone, possibly moving important nutrients upstream.
Photo by Jeff Rauch.
Exposure of flocculent material to sunlight causes the generation of significant amounts of dissolved organic carbon and nitrogen. This process can potentially influence nutrient dynamics in this oligotrophic environment.
Oliva Pisani; PhD Dissertation work.



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