Kelp fronds showing pneumatocysts, bouyant gas-filled bubble-like structures which float the kelp plant off the ocean bottom toward the surface, where it will spread to form a roof-like canopy.
Species: Giant kelp, Macrocystis pyrifera
Location: San Clemente Island, California
Image ID: 38498
Red gorgonian and California golden gorgonian on underwater rocky reef, San Clemente Island. The golden gorgonian is a filter-feeding temperate colonial species that lives on the rocky bottom at depths between 50 to 200 feet deep. Each individual polyp is a distinct animal, together they secrete calcium that forms the structure of the colony. Gorgonians are oriented at right angles to prevailing water currents to capture plankton drifting by.
Species: Red gorgonian, California golden gorgonian, Leptogorgia chilensis, Lophogorgia chilensis, Muricea californica
Location: San Clemente Island, California
Image ID: 38499
Acropora table coral on pristine tropical reef. Table coral competes for space on the coral reef by growing above and spreading over other coral species keeping them from receiving sunlight.
Location: Vatu I Ra Passage, Bligh Waters, Viti Levu Island, Fiji
Image ID: 31331