Wetlands and coastal water quality: Should wetland size matter?
In: Shifting Shorelines: Adapting to the Future,The 22nd International Conference of The Coastal Society
, June 13-16, 2010
, Wilmington, North Carolina.
Generally, wetlands are thought to perform water purification functions, removing contaminants as water flows
through sediment and vegetation. This paradigm was challenged when Grant et al. (2001) reported that Talbert Salt Marsh (Figure 1.) increased fecal indicator bacteria (FIB) output to coastal waters, contributing to poor coastal water quality. Like most southern California wetlands, Talbert Salt Marsh has been severely degraded. It is a small (10 ha), restored wetland, only 1/100th its original size, and located at the base of a highly urbanized watershed. Is it reasonable to expect that this or any severely altered wetland will perform the same water purification benefits as a natural wetland? To determine how a more pristine southern California coastal wetland attenuated bacterial contaminants, we investigated FIB concentrations entering and exiting Carpinteria Salt Marsh (Figure 2.), a 93 ha, moderate-sized, relatively natural wetland.(PDF contains 4 pages)
Conference or Workshop Item
||Wetlands and coastal water quality: Should wetland size matter?
||National Oceanographic and Atmospheric Administration, U.S. EPA Coastal Management Branch, U.S. Geolgocial Survey, NOAA Sea Grant
||Shifting Shorelines: Adapting to the Future,The 22nd International Conference of The Coastal Society
||Wilmington, North Carolina
||June 13-16, 2010
||The Coastal Society
||29 Jul 2010 20:11
||29 Sep 2011 16:42
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