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104



Name: Jaeger, John
Title: Associate Professor
Organization: Geology
Education: Ph.D., Coastal Oceanography, SUNY Stony Brook, Stony Brook, NY, 1998
Office Address: PO Box 112120 Gainesville, FL 32611-2120
Email: jmjaeger@ufl.edu
Telephone: +1 (352) 846-1381


My research involves the quantitative study of sedimentary processes in the coastal ocean and estuaries. Florida has the fastest growing coastal population in the United States, with over a dozen coastal counties expecting growths of their populations exceeding 50% over the next ten years. These estuaries currently are showing the impacts of human activities within their respective watersheds, although natural processes often distort the ability to quantify these impacts. As part of my research, I am investigating how sedimentary processes are affected and possibly altered by human-induced activities, such as dredging, damming, and modifying freshwater influx. Also, natural processes such sediment resuspension and bioturbation can impact the transfer of nutrients across the sediment-water interface, thereby increasing the load of nutrients. In many coastal areas, the estuaries have been affected by human activity for hundreds of years, making it difficult to establish ?natural? baselines of water and sediment quality standards. By evaluating sediment cores from estuaries, we can look back in time to ascertain such baselines, but also see how water and sediment quality have changed over time using proxy records of these parameters. Recent projects include:?Late Holocene to Modern Sedimentary Processes in the Loxahatchee River Estuary, Palm Beach County??The Impact of Bioturbation on Nutrient Fluxes, Lower St. John?s River Estuary??Historical Changes in Nutrient Loads and Sedimentary Processes, Lower St. John?s River Estuary??Late Holocene Sedimentary Processes and Submarine Groundwater Fluxes, Indian River Lagoon?? Funded by Jupiter Inlet District Commission? Funded by St. Johns River Water Management District

Keywords: ESTUARIES; SEDIMENTS

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Subject AreaFocus Area
Geology/SoilsCoastal morphology&processes
Marine geology
Sedimentology
Sediments
Stratigraphy