- The Washington Times - Thursday, October 23, 2003

An unprecedented census of life in the world’s oceans is discovering three new fish species a week on average, and predicts as many as 5,000 fish species may be lurking undetected, according to the first interim report.

By the time they are done in 2010, scientists say they may find more than 2 million different species of marine life.

Three hundred scientists from 53 countries participating in the $1 billion study reported their first findings yesterday, three years into the decade-long project. So far, the Census of Marine Life has identified 15,304 species of fish and 194,696 to 214,696 species of animals and plants, estimated to be roughly 10 percent of the world’s total.

The census is adding about 150 to 200 species of fish and 1,700 species of animals and plants each year.

The scientists said they believe the oceans, which extend across 70 percent of Earth’s surface, hold about 20,000 species of fish and up to 1.98 million species of animals and plants. Many of those could be basic and small life forms, such as worms and jellyfish.

“We’ve tended to be interested in the things that we eat,” said Jesse Ausubel, an environmental scientist at the Rockefeller University in New York City. He helps conduct the census for the Alfred P. Sloan Foundation, which provided $20 million in funding.

“We’ve tended not to be interested in the things that pass through our nets or don’t taste good,” Mr. Ausubel said. “But the small critters are tremendously important in the ecosystem … and in an evolutionary sense, the small things came first. They’re ancient and they’re survivors.”

Scientists hope to gain a better understanding of life in the mostly unexplored seas, learning about evolution and climate, pole to pole. Environmentalists hope to use findings to counter overfishing and pollution that have depleted the oceans’ resources. Industry hopes the study will lead to more-efficient fishing and shipping, and new pharmaceuticals and industrial compounds.

“Our goal by 2010 is to know as much about life in the oceans as we know about life on land now,” said Ronald O’Dor, a marine biologist at Dalhousie University in Halifax, Nova Scotia, and the project’s chief scientist.

“No one would claim that we know everything about life on land,” he said. “There are probably still a few hundred thousand beetles in tropical forests that haven’t been described. But we’d like to aim for parity.”

The project grew from scientists’ concerns after a 1995 report by the National Academy of Sciences found that human population growth was fast changing the diversity of life in the oceans, possibly irreversibly.

They wanted to learn what still was there.

The census started organizing six years ago, partly through the efforts of J. Frederick Grassle, director of Rutgers University’s Institute of Marine and Coastal Sciences. Actual work began in 2000. It has cost $70 million so far. The price tag is expected to reach $1 billion, paid by participating governments.

Their work may never really be finished.

“We know we won’t have counted every animal,” said Mr. Grassle, who chairs the scientific steering committee of the census. “The limit on the knowable is in major part the resources that can go into the problem.”

LOAD COMMENTS ()

 

Click to Read More

Click to Hide