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After the Blue Fin Tuna

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April 29 - 30, 1997 -- Scientists are concerned that over-fishing has dangerously depleted the blue-fin tuna population. The blue-fin is one of the largest bony fish in the world, and probably the fastest. It is also tasty and in great demand as sushi.

Researchers have many questions about the blue-fin tuna. Biologists are tagging the huge fish with tiny electronic monitoring devices hoping to discover where they do their breeding and other important information about them.

In part one, Morning Edition Special Correspondent Alex Chadwick takes listeners on a National Geographic Radio Expedition to observe the blue-fin tuna as natural wonder . . . and delicacy.

In part two, NPR's Christopher Joyce joins scientists who electronically track the blue-fin.

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