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Magazine article by Rutgers researcher details revival of life after deep-sea volcanic eruption

NEW BRUNSWICK/PISCATAWAY, N.J. -- The rapid revival of life around hydrothermal vents on the floor of the Pacific Ocean after a lava flow had appeared to exterminate it is the subject of an article co-authored by Rutgers researcher Richard A. Lutz in the September-October issue of American Scientist magazine.

Lutz is director of the Center for Deep Sea Ecology and Biotechnology at Rutgers Institute of Marine and Coastal Sciences. The magazine is published by Sigma Xi, a scientific research society based in Research Triangle Park, N.C.

As described in the article, "Life After Death in the Deep Sea," Lutz first encountered the strange ecology of hydrothermal vents in the late 1970s off the coast of the Galapagos Islands.

On a subsequent expedition in 1991 to hydrothermal vents more than 2,550 meters below the surface off the coast of Mexico, the scientists found themselves in the middle of a volcanic eruption. A blanket of fresh lava killed the sea life the researchers hoped to study. Many of the creatures, such as giant tube worms, clams and fish, were instantly incinerated by lava.

In the article, Lutz details how he led a series of return trips over a nine-year period that shocked the scientific world: Not only did the researchers find new geological formations that scientists had formerly believed took eons to evolve, the scientists found an explosion of new biological life, including new life forms ranging from microscopic crustaceans to two new species of octopus.

The creatures living around thermal vents function without light and near vent water that would seem too hot and toxic to support life, reports Lutz. Among them are worms, clams, mussels, mollusks, octopuses, fish, crabs and other crustaceans. To date, he notes in the article, more than 500 new species have been found at vent sites throughout the world's oceans.

Some of the strangest are two kinds of vent worms: the tubeworm (Riftia pachyptila), which can
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Contact: Kevin P. Hyland
khyland@ur.rutgers.edu
732-932-7084
Rutgers, the State University of New Jersey
23-Aug-2001


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