Biorock Projects

Tom Goreau, the originator of Biorock, has been a wonderful source of information about restoring oysterbeds, eel grass and salt marshes here in the Bay Area. The use of an extremely mild current of electricity on steel reef structures can preserve the steel, create a limestone overlay, attract oysters and create an environment that will allow both eel grass and salt marshes to flourish.

Upcoming Projects of Marin County: Lori Grace of Save Our Bay, Save Our Ocean has introduced Tom Goreau to both the Romberg Environmental Research Center here in Tiburon and to a number of key officials in Marin County. There is great excitement in both places about the potential of Biorock. Tom Goreau is scheduled to return in the third week of August to move forward with projects throughout Marin County and with the Romberg Center. The places that are being targeted initially include Bothin Marsh, Muir Beach and Stinson Beach among others.

Exciting Possibilities for Underwater Property Owners in Marin County: He is also helping Lori Grace , as a private waterfront and underwater property owner, preserve her shoreline and add more biodiversity to her shoreline. Lori would like to inspire other underwater property owners here in Marin to protect their shoreline and to enhance biodiversity, so that they could have the joy of looking out at the water next to their property and see it populated for example with more seabirds diving for fish and possibly seals! When walking along the shoreline they could, if they put in Biorock have the pleasure of knowing that oysterbeds and eel grass would be growing in their underwater or intertidal property and know that fish of all sorts are breeding there.

Biorock system

Lori’s small stone Biorock project to be submitted to the BCDC for approval

oyster bench shop drawing

Starting plans for oyster bench also to be submitted to BCDC for approval.

Eel grass, an underwater native to the San Francisco Bay Area once thrived throughout the bay, but now exists in only a few places in the bay. Using Biorock will help restore eel grass, which will serve both as a breeding ground for all types of fish and shellfish, but also acts as a carbon sink by absorbing carbonic acid in the water and reducing acidification in the water. Currently native in the San Francisco Bay have not been surviving well due to the water becoming more acid- actually a product of increased CO2 in the air. This is not a good outcome considering that oysters were once a keystone species that served as great food for birdlife.  Lori is looking forward to increasing the growth of eel grass at her property.

eelgrassSlider

Eel Grass in the San Francisco Bay

For more information about eel grass here in Marin County, please read this article about the eel grass project in Richardson Bay.

See More: Eelgrass in Richardson Bay Eelgrass, Zostera marina L, is the most widely occurring marine angiosperm in world, growing throughout the west and east coast of the United Sates, Canada and along the coast of Baja California. Eelgrass habitat acts as a protective nursery ground for finfish and shellfish, as an important food source for waterbirds, and as protection to coastal areas against shoreline erosion…

The use of Biorock will help the Audubon Society grow even more eel grass in Richardson Bay. As mentioned before, underwater property owners can join Audubon in creating even more eel grass in their underwater property and enhance the overall biodiversity in their section of the San Francisco Bay!

 

Resources:

Biorock® oysters grow faster and have higher survival

RTE at Restoring Ecosystems to Reverse Global Warming Conference at Tufts University, November 21-23, 2014