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E-mail Announcements Subject: AGU Session: Dissolved Organic Matter Sources ASLO Meeting, Salt Lake City, Utah February 8-14, 2003 Dissolved Organic Matter Sources-Characterization, Distribution, and/or Quantification--Freshwater and Marine This special session will focus on either discrete biotic or abiotic sources of dissolved organic matter (DOM). Multiple dissolved organic matter sources have been suggested (e.g. salt marshes, mangrove swamps, photochemical processes, hydrothermal vents, marine snow, ice algae, zooplankton, catchments, sewage, rainfall, soil leaching) in aquatic systems that can lead to small-scale variability in DOM distribution and composition. Both biotic and abiotic processes can result in the production of DOM with their own unique chemical, optical, and biological properties. Knowledge about the temporal and spatial distribution of production rates, fluxes, composition and reactivity of these DOM sources are critical to our understanding of the functioning of freshwater and marine systems. Anthropogenic stresses such as land use changes, eutrophication, or resource management practices can potentially change the DOM concentration, distribution, and composition within the surrounding water. Since DOM is vital for microbial processes and influences the distribution and lability of anthropogenic pollutants, knowledge about the sources of DOM is critical for future management of our aquatic systems. Chairs: Juanita Urban-Rich, Bob Chen, Diane McKnight Contact: Juanita.urban-rich@umb.edu http://www.aslo.org/slc2003/ Abstract Deadline October 1, 2002. ============================================ |