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X-WR-CALNAME;VALUE=TEXT:UMCES Events
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DTSTART:20191103T020000
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UID:calendar.4672.field_date_time.0@www.umces.edu
DTSTAMP:20260403T232309Z
CREATED:20190822T130217Z
DESCRIPTION:October 16\, 2019 3:30pm    \n    \n      \n\n\n    \n\n       
        \nChesapeake Biological Laboratory\n      \n\n\n\n\n  \n\n    \n\n 
              \n\n\n              Ironing out the biogeochemistry of metals
  in oceanic ecosystems\n          \n  \n\n    \n\n              \n\n\nMeta
 ls play a critical role in ecosystems as essential micronutrients\, toxic 
 contaminants\, and tracers of biological and physical processes. The fate 
 of metals in the environment is largely governed by organic metallophores 
 – ligands that bind to metals and affect their solubility and reactivity\,
  and bioavailability. Thus explaining metal distributions in the environme
 nt and assessing their impact on global productivity and carbon/nutrient c
 ycles requires fundamental knowledge of the source and chemistry of organi
 c ligands. Iron is a key limiting nutrient in over a third of the surface 
 ocean due to its scarce solubility in seawater. Nearly all dissolved iron 
 is bound to organic ligands that keep it in solution and also affect which
  organisms can take it up. Yet characterizing organic ligands has remained
  a formidable analytical challenge due to the complexity of organic matter
  in the ocean and the trace quantities of ligands and metals. Our research
  focuses on the development of sensitive mass spectrometry based analytica
 l methods for identifying and quantifying the specific organic ligands pre
 sent in complex environmental samples. These new tools have enabled us to 
 survey the composition of organic ligands across the ocean and determine t
 heir sources\, reactivity\, and bioavailability. In this talk\, I’ll discu
 ss how this molecular-level insight into the chemistry of organic ligands 
 in the environment sheds light on the mechanistic linkages between metals 
 and marine ecosystems.
DTSTART;TZID=America/New_York:20191016T153000
DTEND;TZID=America/New_York:20191016T153000
LAST-MODIFIED:20191011T173938Z
SUMMARY:CBL Seminar: Dr. Rene Boiteau (Oregon State University)
URL;TYPE=URI:https://www.umces.edu/events/cbl-seminar-dr-rene-boiteau-orego
 n-state-university
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