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10 April 2014 11:44 am ,
Vol. 344 ,
The Pyrenean ibex, an impressive mountain goat that lived in the central Pyrenees in Spain, went extinct in 2000. But a...
Tight budgets are forcing NASA to consider turning off one or more planetary science projects that have completed their...
Ebola is not a stranger to West Africa—an outbreak in the 1990s killed chimpanzees and sickened one researcher. But the...
In an as-yet-unpublished report, an international panel of geoscientists has concluded that a pair of deadly...
Tropical disease experts tried and failed before to eradicate yaws, a rare disfiguring disease of poor countries. Now,...
Since 2002, researchers have reported that agricultural communities in the hot and humid Pacific Coast of Central...
Balkan endemic kidney disease surfaced in the 1950s and for decades defied attempts to finger the cause. It occurred...
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ScienceShot: The Great Shark Massacre
1 March 2013 1:15 pm
Sharks have become the underdog of the oceans. They reproduce slowly and are being targeted for their fins and caught accidentally in the hunt for fish. Now, researchers have created the first global estimate of the carnage. By combining data from fisheries organizations and the scientific literature, the team reports in Marine Policy that 97 million sharks were killed in 2010 and perhaps as many as 273 million. "This is the best attempt, published to date, to bring together the available data to quantify fisheries impacts on sharks at a global scale," says John Musick, a shark expert at the Virginia Institute of Marine Science in Gloucester Point. The dire figure implies that more sharks are being taken than are born, jeopardizing their future. George Burgess of the Florida Museum of Natural History in Gainesville points out that the calculation required numerous assumptions, including a single weight estimate for all sharks. Nevertheless, Burgess says, experts agree that sharks are in deep trouble. "It's just a matter of how bad off." The authors argue that sharks need stronger protections, such as the kind of international agreement that has protected whales, or restrictions to the trade of their fins and meat. Several such proposals will be considered this month as the Conference of the Parties to the Convention on International Trade in Endangered Species of Wild Fauna and Flora meets in Bangkok.
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