By Juliet Eilperi
THE WASHINGTON POST
August 11, 2008

As shark populations continue to plummet, scientists wonder if trend will change tides

The Mediterranean Sea, said Francesco Ferretti, is "a very dangerous place for a shark."

So dangerous that in the past two centuries, the shark population there has plummeted by more than 97 percent, both in relative numbers and collective weight, according to a study by the graduate student, two colleagues at Dalhousie University in Nova Scotia and an Italian researcher.

They based their conclusion on evidence scoured from an unusually wide variety of records, including documents drawn from universities and archives, from fish markets and recreational fishing clubs, and from local accounts of shark sightings.

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