California Projects

Restoring Eelgrass in Richardson Bay

Our Goals
To restore and enhance eelgrass beds in Richardson Bay, providing critical habitat for coastal birds and marine life while improving water quality and strengthening shoreline resilience.
What We’re Doing
Audubon California and partners are working to restore eelgrass beds by protecting existing habitat, improving water conditions, and promoting science-based restoration efforts to support marine biodiversity and climate resilience.

No matter where you live, chances are you and your family are benefiting from eelgrass. This beautiful plant provides dozens of ecosystem services and provides essential habitat for coastal birds. Discover how we protect 20,000 waterbirds—and more—at Richardson Bay below.

Eelgrass on the U.S. West Coast is a member of the family of sea grasses called Zosteraceae and belongs to the higher taxonomic group of flowering plants called angisosperms. The blades of eelgrass are similar to those found in common grass species and depending on the zone, these could grow up to 4 feet in length. 

As a crucial nursery habitat for crabs, salmon, and other wildlife, eelgrass boosts the economies of our coastal communities through fisheries and tourism. Healthy eelgrass beds also clean and filter water, absorb climate-warming carbon, and act as natural buffers to protect the coastline during storms.

Within San Francisco Estuary, Richardson Bay stands out as a particularly unique location for eelgrass restoration. It harbors the second-largest extant eelgrass bed in the estuary, and plants with the most genetic diversity of six beds sampled. Further, a model of environmental conditions in the estuary has identified Richardson Bay as the area with the greatest area suitable for restoration (Merkel and Associates 2004). Hence, Richardson Bay is highly valued both for its existing eelgrass resources and its potential for restoration.