 When established, the surf grass may dominate the habitat.A biodiverse invertebrate community lives in surf grass beds and includes snails, limpets and crustaceans, and algae may grow on the stems and leaves.Sea grass was used by Native American tribes along the Southern California Coast to make cordage and other woven objects, including specimens from San Miguel Island dated between about 10,000 and 8,600 years ago (see Connolly, Erlandson, and Norris 1992).