Restoration was undertaken to restore a historical kelp bed.
Site Selection Criteria:
The selected kelp bed was heavily utilised due to its size and proximity to an urban centre, and has experienced historical kelp losses.
Cause Of Decline:
The Point Loma kelp bed, because of size and proximity to a large population centre, was probably the most heavily utilised kelp area in southern California. Records show that formerly the bed extended over about six square miles. Following World War I its size decreased steadily, reaching a minimum value of about 1/100 of a square mile in 1961. During this period the volume of kelp harvested here also decreased. Investigation showed large numbers of sea urchins dominated areas where kelp had formerly existed and that intense grazing by the dense urchin populations was preventing natural kelp regrowth.