Scientists find 100s of new creatures on Australia's coral reefs

"People have been working at these places for a long time and still there are literally hundreds and hundreds of new species that no one has ever collected or described," said Julian Caley, a scientist from the Australian Institute of Marine Science who is helping to lead the research.

"So in that sense, it's very significant in that if we don't understand what biodiversity is out there, we don't have much of a chance of protecting it," he said.

Scientists at several Australian museums have begun the complex process of working with the samples for genetic bar-coding and taxonomy, the formal system of naming living things. That work is expected to take years, Caley said.

Among the creatures researchers found were about 130 soft corals — also known as octocorals, for the eight tentacles that fringe each polyp — that have never been described in scientific literature, and scores of similarly undescribed crustaceans, including tiny shrimp-like animals with claws longer than their bodies.

The 10-year census, scheduled for final publication in 2010, is supported by governments, divisions of the United Nations and private conservation organizations.

The Australian researchers conducted three expeditions, one each in the waters off the Great Barrier Reef's Lizard and Heron islands, and one in the Ningaloo Reef, on Australia's northwest coast. Thousands of samples were collected during the three-week research trips, which took place between April and September.

The project marks the first time any group has made a concerted effort to understand the biodiversity of the Great Barrier Reef, said Ron Johnstone, a marine science professor at the University of Queensland who is familiar with the research.