Stig Östlund

onsdag, augusti 15, 2012


Studying Life in Underwater Caves (Image 1)

Dean s Blue Hole on Long Island in the Bahamas
Dean's Blue Hole on Long Island in the Bahamas. At more than 200 meters deep, it's the deepest blue hole cave in the Bahamas.

The underwater cave was the focus of a National Science Foundation-supported expedition--"Survey of Anchialine Cave Fauna of the Bahama Islands" (grant DEB 03-15903)--led by Thomas Iliffe, a professor of marine biology at Texas A&M University at Galveston.

Anchialine (a Greek word meaning "near the sea") caves are coastal and form in limestone or volcanic rock. They flood with seawater and include the longest submerged caves on Earth. Many previously unknown species of higher taxa live in these caves. Most do not have eyes or pigment since they live in perpetual darkness.
Credit: Tamara Thomsen

Studying Life in Underwater Caves (Image 2)

A remipede, <em>Pleomothra fragilis</em>
This species of remipede, Pleomothra fragilis, newly described in 1989, was found in Oven Rock Cave in the Exuma Cays, Bahamas.

Remipedes are a primitive class of crustacean believed to be one of the oldest crustacean [kräftdjur, skaldjur] groups on Earth, possibly dating back 200 million years to the time of the dinosaurs. Remipedes look similar to centipedes [mångfoting, tusenfoting] and have hollow-tip fangs for injecting venom. They are hermaphrodites.
Credit: Thomas M. Iliffe, Texas A&M University at Galveston

Studying Life in Underwater Caves (Image 3)

A remipede, <em>Pleomothra fragilis</em>
This species of remipede, Pleomothra fragilis, newly described in 1989, was found in Oven Rock Cave in the Exuma Cays, Bahamas.
Credit: Thomas M. Iliffe, Texas A&M University at Galveston

Studying Life in Underwater Caves (Image 4)

Cave divers diving in a submarine lava tube cave in the Canary Islands
Cave divers Terrence Tysall, Jim Rozzi and Thomas Iliffe (left to right) diving in a submarine lava tube cave in the Canary Islands.

Underwater caves such as this were the focus of a National Science Foundation-supported expedition--"Survey of Anchialine Cave Fauna of the Bahama Islands" (grant DEB 03-15903)--led by Iliffe, a professor of marine biology at Texas A&M University at Galveston.
Credit: Jill Heinerth

Studying Life in Underwater Caves (Image 5)

Diving with Megalodon closed circuit rebreather in the Atlantida Tunnel, Lanzarote, Canary Islands
Tom Iliffe , a Texas A&M University at Galveston professor of marnie biology, is seen here diving with a Megalodon closed circuit rebreather in the Atlantida Tunnel, Lanzarote, Canary Islands.
Credit: Jill Heinerth

Bloggarkiv