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UID:0-7733@eng.ufl.edu
DTSTART;TZID=America/New_York:20251008T125000
DTEND;TZID=America/New_York:20251008T134000
DTSTAMP:20250903T140122Z
URL:https://www.eng.ufl.edu/news-events/events/ees-seminar-phosphorus-cycl
 ing-in-coastal-waters-and-sediments-deb-jaisi-u-delaware/
SUMMARY:EES Seminar: Phosphorus Cycling in Coastal Waters and Sediments\, D
 eb Jaisi\, U. Delaware
DESCRIPTION:Nutrient contamination in open water bodies has increasingly be
 en one of the lingering issues in water quality restoration because of the
  multitude of sources\, temporally and spatially variable inputs\, and com
 plex interacting factors. In this talk\, outcomes from the stable isotope 
 [phosphate oxygen (18OP)] will be combined with that of NMR\, Raman\, a
 nd IR spectroscopies to characterize phosphorus (P) sources and species in
  dissolved and particulate matter in the water column\, discriminate exter
 nal input and recycled sources\, and connect biogeochemical processes in s
 hallow sediment with overlying water column. Some of the key highlights in
 clude coupled carbon-phosphorus (C-P) cycling and dominance of the reminer
 alization pathway of P cycling supporting late-stage eutrophication in the
  Chesapeake Bay. It will also include the most recent advances made in tan
 dem mass spectrometry based position-specific isotope analysis (PSIA) in i
 ntact P molecules and fragments and insights derived for selective hydroly
 sis and synthesis of P compounds in natural environment. These outcomes ar
 e useful for high-resolution studies on P process as well as have implicat
 ions for testing efficacy of nutrient management plans in agricultural run
 off-dominated watersheds.\n\nDr. Jaisi is an environmental and isotope bio
 geochemist specializing in the high-resolution oxygen isotopic analysis of
  phosphate across diverse scales and ecosystems. His earned PhD degree in 
 Geological Sciences from Miami University\, postdoc as Interdepartmental B
 ateman Fellow from Yale University and NSF Fellow from California Institut
 e of Technology. Dr. Jaisi has published 117 peer reviewed papers and book
  chapters. 
CATEGORIES:Seminars
LOCATION:Engineering Building (NEB) Room 100\, 1064 Center Drive\, Gainesvi
 lle\, Florida\, 32611\, United States
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=1064 Center Drive\, Gainesv
 ille\, Florida\, 32611\, United States;X-APPLE-RADIUS=100;X-TITLE=Engineer
 ing Building (NEB) Room 100:geo:0,0
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