Is Dis­as­ter Im­mi­nent for Tunas?

Sport Fishing - - THE TUNE TRIBE -

Tunas oc­ca­sion­ally make it into main­stream news, and when they do, the cir­cum­stances (for con­tin­ued sur­vival of the species) usu­ally sound pretty dire. How­ever, a sci­en­tist at the Univer­sity of Wash­ing­ton, on, found that, at least through 2014 (per avail­able data), only eight of 22 com­mer­cial tuna stocks had an abun­dance be­low that which would pro­duce max­i­mum sus­tain­able yield. Two stocks, says Ph.D. can­di­date Maite Pons — Pa­cific bluefin and big­eye in the western cen­tral Pa­cific — are fished hard enough to threaten their col­lapse. But that’s two of 22. She con­cludes by say­ing, “The abun­dance of tunas and their rel­a­tives has de­clined from prein­dus­trial lev­els, but in gen­eral, they are at sus­tain­able lev­els,” with a few noted ex­cep­tions (and some show­ing signs of re­build­ing at this time).

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