MANILA, Philippines — U.S. and Philippine scientists may have discovered new marine species in the world's most biologically diverse region, their expedition leader said Tuesday.
Larry Madin, who led the Inner Space Speciation Project in the Celebes Sea south of the Philippines, said scientists had been to one of the world's deep-ocean basins in search of organisms that may have been isolated there for millions of years.
Madin, of the Massachusetts-based Woods Hole Oceanographic Institution, or WHOI, said the Celebes Sea is at the heart of the "coral triangle" bordered by the Philippines, Malaysia and Indonesia — a region recognized by scientists as having the greatest degree of biological diversity of the coral reef community of fish and other marine life.
The deepest part of the Celebes Sea is 16,500 feet (5,000 meters). The team was able to explore to a depth of 9,186 feet (2,800 meters) using a remotely operated camera.
"This is probably the center where many of the species evolved and spread to other parts of the ocean, so it's going back to the source in many ways," he told a group of journalists, government officials, students and U.S. Ambassador Kristie Kenney and her staff.
Madin led the project that involved WHOI and National Geographic Magazine in cooperation with the Philippine government, which also provided the exploration ship.
Weird science: Top unexplained mysteriesThe expedition included over two dozen U.S. and Philippine scientists and a group from National Geographic — including underwater photographer Emory Kristof, who teamed with noted underwater explorer Robert Ballard of WHOI in 1985 to find the wreckage of the Titanic.
The team returned to Manila on Tuesday after spending about two weeks in the Celebes Sea off Tawi-Tawi, the Philippines’ southernmost provincial archipelago, about 687 miles (1,100 kilometers) south of Manila.
Madin said they had collected about 100 different specimens, including several possibly newly discovered species. One was a sea cucumber that is nearly transparent which could swim by bending its elongated body. Another was an unusually black jellyfish that was found near the bottom of the sea. But the most striking creature they found was a spiny orange-colored worm that had 10 tentacles like a squid, he said.
"We don't know what it is ... it might be something new," he said.
He said it would take "a few more weeks" of research in the United States to determine whether the species they have brought back are newly discovered. He expects to release a report by early next month.
Madin said the Celebes Sea, being surrounded by islands and shallow reefs, is partially isolated from the rest of the world's oceans and may have been more isolated millions of years ago, leading scientists to believe that "there may be groups of organisms that have been contained and kept within" the basin since then.
"That makes it an interesting place to go and look to see what we might find," he said.
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