Tuna Found To Regularly Cross Atlantic

School of bluefin tuna (Credit: NOAA Fisheries Service)

A baby bluefin tuna that was caught, tagged and released off the coast of New Jersey this month was found to have had made the 2,000-mile trans-Atlantic trip from the Bay of Biscay between France and Spain, supporting the idea that giant bluefin regularly cross the ocean to mix with eastern Atlantic stock, according to a report in the Gloucester Times.

Molly Lutcavage, director of the Large Pelagics Research Center in Gloucester, Massachusetts, said that while the age of the fish was surprising, the center’s tagging program has found a large cohort of bluefins born in the eastern Atlantic cross the ocean and mix with the western bluefins.

The growing body of evidence that the giant bluefins cross the ocean frequently and mix is important, Lutcavage explained, because the International Commission for the Conservation of Tunas — or ICCAT — assumes two separate stocks, eastern and western, for the purposes of regulatory conservation.

To read more:

Gloucester Times

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