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Kelp frond showing pneumatocysts. Image ID: 00627 Species: Giant kelp, Macrocystis pyrifera Location: San Clemente Island, California, USA	A kelp forest, with sunbeams passing through kelp fronds. Giant kelp, the fastest growing plant on Earth, reaches from the rocky bottom to the ocean's surface like a submarine forest. Image ID: 02411 Species: Giant kelp, Macrocystis pyrifera Location: San Clemente Island, California, USA	A SCUBA diver swims through a giant kelp forest which is tilted back by strong ocean currents. Giant kelp, the fastest plant on Earth, reaches from the rocky bottom to the ocean's surface like a submarine forest. Image ID: 01107 Species: Giant kelp, Macrocystis pyrifera Location: San Clemente Island, California, USA

Sunlight streams through giant kelp forest. Giant kelp, the fastest growing plant on Earth, reaches from the rocky reef to the ocean's surface like a submarine forest. Image ID: 33433 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA	Bryozoan grows on a red gorgonian on rocky reef, below kelp forest, underwater. The red gorgonian is a filter-feeding temperate colonial species that lives on the rocky bottom at depths between 50 to 200 feet deep. Gorgonians are oriented at right angles to prevailing water currents to capture plankton drifting by. Image ID: 25395 Species: Red gorgonian, Lophogorgia chilensis Location: San Clemente Island, California, USA	Surf grass on the rocky reef -- appearing blurred in this time exposure -- is tossed back and forth by powerful ocean waves passing by above. San Clemente Island. Image ID: 10237 Species: Surfgrass, Phyllospadix Location: San Clemente Island, California, USA

Red gorgonian on rocky reef, below kelp forest, underwater. The red gorgonian is a filter-feeding temperate colonial species that lives on the rocky bottom at depths between 50 to 200 feet deep. Gorgonians are oriented at right angles to prevailing water currents to capture plankton drifting by. Image ID: 25393 Species: Red gorgonian, Lophogorgia chilensis Location: San Clemente Island, California, USA	Sunlight streams through giant kelp forest. Giant kelp, the fastest growing plant on Earth, reaches from the rocky reef to the ocean's surface like a submarine forest. Image ID: 33434 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA	Sunlight streams through giant kelp forest. Giant kelp, the fastest growing plant on Earth, reaches from the rocky reef to the ocean's surface like a submarine forest. Image ID: 33435 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA

Sunlight streams through giant kelp forest. Giant kelp, the fastest growing plant on Earth, reaches from the rocky reef to the ocean's surface like a submarine forest. Image ID: 33436 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA	Sunlight streams through giant kelp forest. Giant kelp, the fastest growing plant on Earth, reaches from the rocky reef to the ocean's surface like a submarine forest. Image ID: 33437 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA	Sunlight streams through giant kelp forest. Giant kelp, the fastest growing plant on Earth, reaches from the rocky reef to the ocean's surface like a submarine forest. Image ID: 33438 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA

Green sea turtle foraging for algae on coral reef, Chelonia mydas, West Maui, Hawaii. Image ID: 34507 Species: Green Sea Turtle, Chelonia mydas Location: Maui, Hawaii, USA	Kelp frond showing pneumatocysts. Image ID: 02435 Species: Giant kelp, Macrocystis pyrifera Location: Santa Barbara Island, California, USA	Blue shark and offshore drift kelp paddy, open ocean. Image ID: 01078 Species: Blue shark, Prionace glauca, Macrocystis pyrifera Location: San Diego, California, USA

Blue shark and offshore drift kelp paddy, open ocean. Image ID: 01081 Species: Blue shark, Prionace glauca, Macrocystis pyrifera Location: San Diego, California, USA	Garibaldi and Marine Algae, Coronado Islands, Mexico. Image ID: 36490 Location: Coronado Islands (Islas Coronado), Baja California, Mexico	Sargassum and Marine Algae, Coronado Islands, Mexico. Image ID: 36491 Location: Coronado Islands (Islas Coronado), Baja California, Mexico

Red gorgonian on rocky reef, below kelp forest, underwater. The red gorgonian is a filter-feeding temperate colonial species that lives on the rocky bottom at depths between 50 to 200 feet deep. Gorgonians are oriented at right angles to prevailing water currents to capture plankton drifting by. Image ID: 25394 Species: Red gorgonian, Lophogorgia chilensis Location: San Clemente Island, California, USA	Kelp fronds and pneumatocysts. Pneumatocysts, gas-filled bladders, float the kelp plant off the ocean bottom toward the surface and sunlight, where the leaf-like blades and stipes of the kelp plant grow fastest. Giant kelp can grow up to 2' in a single day given optimal conditions. Epic submarine forests of kelp grow throughout California's Southern Channel Islands. Image ID: 25396 Species: Giant kelp, Macrocystis pyrifera Location: San Clemente Island, California, USA	Salema schooling amid kelp forest. Image ID: 01022 Species: Salema, Xenistius californiensis, Macrocystis pyrifera Location: Catalina Island, California, USA

The Kelp Forest offshore of La Jolla, California. A kelp forest. Giant kelp grows rapidly, up to 2' per day, from the rocky reef on the ocean bottom to which it is anchored, toward the ocean surface where it spreads to form a thick canopy. Myriad species of fishes, mammals and invertebrates form a rich community in the kelp forest. Lush forests of kelp are found throughout California's Southern Channel Islands. Image ID: 30986 Species: Giant kelp, Macrocystis pyrifera	Red gorgonian on rocky reef, below kelp forest, underwater. The red gorgonian is a filter-feeding temperate colonial species that lives on the rocky bottom at depths between 50 to 200 feet deep. Gorgonians are oriented at right angles to prevailing water currents to capture plankton drifting by. Image ID: 35825 Location: Santa Barbara Island, California, USA	Pyrosome in Kelp Forest, Santa Barbara Island. Image ID: 35826 Location: Santa Barbara Island, California, USA

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. Image ID: 35827 Location: Santa Barbara Island, California, USA	Red gorgonian on rocky reef, below kelp forest, underwater. The red gorgonian is a filter-feeding temperate colonial species that lives on the rocky bottom at depths between 50 to 200 feet deep. Gorgonians are oriented at right angles to prevailing water currents to capture plankton drifting by. Image ID: 35828 Location: Santa Barbara Island, California, USA	Kelp Forest, Santa Barbara Island. Image ID: 35830 Location: Santa Barbara Island, California, USA

Garibaldi and Marine Algae, Coronado Islands, Mexico. Image ID: 36468 Location: Coronado Islands (Islas Coronado), Baja California, Mexico	Giant kelp frond showing pneumatocysts. Small gas bladders -- pneumatocysts -- connect the kelp's stipes ("stems") to its blades ("leaves"). These bladders help elevate the kelp plant from the bottom, towards sunlight and the water's surface. Image ID: 33439 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA	Giant kelp frond showing pneumatocysts. Small gas bladders -- pneumatocysts -- connect the kelp's stipes ("stems") to its blades ("leaves"). These bladders help elevate the kelp plant from the bottom, towards sunlight and the water's surface. Image ID: 33440 Species: Giant Kelp, Macrocystis pyrifera Location: Catalina Island, California, USA