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Jan 6 2011 - 10:56am
Ice divers use a quadrat to study the density of creatures living on the underside of Arctic ice floes. A quadrat is a standardized square used to take sample measurements that allow researchers to get an accurate estimate of the number of particular animals living in a larger space.
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Jan 26 2010 - 11:45am
Dr. Valerie Paul is studying chemical defenses that may protect coral reefs from many species of herbivores that live on coral reefs. In this picture she is examining tropical seaweeds on northwestern Guam’s coral reefs. Dr. Paul is the director of the Smithsonian Marine Station (SMS) at Fort...
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Jan 26 2010 - 11:45am
A scuba diver explores elkhorn corals (Acropora palmata) growing on a tropical reef. Coral reefs provide recreation and inspiration for millions of people every year. Elkhorn coral is listed as Critically Endangered on the IUCN's Red List of Threatened Species.
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Apr 26 2011 - 12:49pm
It blew in for two solid days: a flotilla of plastic forks, soda bottles, rubber gloves, and other refuse. I tried to pick everything up off the beach, but when I turned around, you couldn’t tell that I had cleaned at all. When we went out in the boats, we had to go slowly in order to dodge the...
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Jul 15 2011 - 4:51pm
"Inside the Open Ocean: Blue Water Diving" produced by Woods Hole Oceanographic Institution (WHOI), describes a specialized diving technique that lets biologists study the ocean's most fragile beings--soft, transparent animals such as jellyfish that are crushed by traditional tools such as plankton...
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Apr 29 2010 - 6:05pm
Jacques Cousteau once said, “When you dive, you begin to feel like an angel."
It’s true. When a diver dons a tank and slips into the water, the noisy clatter of the world disappears and the sensation of weightlessness takes over. The unrestrained expanse of blue water. The dazzling rainbow of...
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Jul 27 2011 - 12:11pm
Dr. Peter Auster gets ready for a dive to study the ecology of fish predators at Gray’s Reef National Marine Sanctuary off the coast of Georgia.
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Apr 17 2010 - 12:00pm
A cameraman navigates a smack of sea nettles (Chrysaora fuscescens) in Monterey Bay. A group of jellies is known as a "smack."
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Apr 26 2011 - 12:36pm
Plastic trash floats in the waters off the Smithsonian's Carrie Bow Cay field station, in Belize. This image is a still taken from a video recorded by Laurie Penland, a Smithsonian dive officer.
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Nov 11 2009 - 5:48pm
Scientists on the tiny island of Moorea, in the Pacific, are gathering one of every life form large enough to pick up with tweezers. They're on a quest to build a detailed catalog of the entire ecosystem. Learn more about the island and the research being done there in our Casting a Wide Net...
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