Carl Hansen

An Underwater Portfolio


Carl Hansen is the chief of the Office of Imaging, Printing and Photographic Services branch at the National Museum of Natural History. He was formerly the photographer at the Smithsonian Tropical Research Institute in Panama.

The Belize Barrier Reef

The colorful Squirrel Fish is quite common on Caribbean reefs. This one was photographed off the coast of Belize. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1336.

An underwater close-up of a distinctive French Angel Fish, (black with yellow highlights), on a Belizian reef. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1400,

An underwater photo taken with a "fisheye" lens of a reef off Belize including black sponge, purple fan coral and brain coral. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1623,

Fisheye underwater view of Belizian reef scene including purple sea fan coral and other soft corals. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1624.

A spectacular fisheye underwater view of Belizian reef scene including tube sponges. soft coral, brain coral and reef fish. Taken with a "fisheye" lens in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1625.

The bright blue spots on this immature Damsel Fish will disappear. Immature fish are often more brightly colored than adults. As an adult it will be nearly all black. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1364.

A brightly colored blue, purple, orange and yellow Fairy Basslet fish photographed on the reef off the coast of Belize. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1339.

A dramatic photo of colorful purple vase sponges on the deep reef wall off the coast of Belize. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1333.

A Butterfly Fish (white with black eye stripe and yellow fins) on a coral reef off Belize. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1363.

Close-up showing the intricate pattern in hard coral. Taken in November, 1992 during an underwater photographic survey for the Smithsonian's National Museum of Natural History on the barrier reef off the coast of Belize, Central America. Smithsonian Photo #93-1350.

The Pacific Coast of Panama

Shark Cave This coral cave forms a dormitory for White-tipped Reef Sharks. Squirrel fish hover above them near the cave roof. Photographed off one of the Pearl Islands on Panama's Pacific Coast. (c) 1991 Carl C. Hansen

Yellow bellied Sea Snake The Yellow bellied Sea Snake (Pelamis platurus) has the most toxic venom of any snake. There is no known antivenin for its bite. Fortunately, these snakes are not aggressive and rarely try to bite even if handled. They are highly modified for life in the open ocean (Pacific) and are unable to crawl on land. They can often be seen floating along drift lines on the surface, but spend much of their time in deep dives.


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