The San Francisco Bay, the biggest estuary on the west coast of North America, was once surrounded by an almost unbroken chain of tidal wetlands, a fecund sieve

At a time when more than half of the U.S. population lives within fifty miles of the coast, tidal wetlands are a critical and threatened natural resource. The p

Tidal salt marshes are viewed as critical habitats for the production of fish and shellfish. As a result, considerable legislation has been promulgated to conse