Estuaries
A thorough discussion of the estuarine system.
Visit the Estuarine System web site
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The Biology of Estuaries
Elkhorn Slough harbors the largest tract of tidal salt marsh in California outside of San Francisco Bay.
Visit the Elkhorn Slough web site
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Salt Marshes
This marsh has multiple uses including recreation, wildlife habitat, education, and wastewater treatment.
Visit the Arcata Marsh and Wildlife Sanctuary web site
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Mangrove Swamps
Mangrove swamps proliferate along certain tropical shorelines in place of salt marshes. These are complex environments and are characterized by high primary production and complex biological communities.
Visit the Mangrove Swamps web site
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Coral Reefs
This site is part of a series of online geology modules. This one focuses on the geology and evolution of coral reefs.
Visit the Carbonate Reefs and Buildups web site
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