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(A) Decline over time of Atlantic bluefin tuna biomass in the Mediterranean- and Gulf of Mexico-spawning stocks (2). MT, metric tons. (B) Map of the Mediterranean Sea divided into eastern (yellow) and western (orange) basins with relevant subseas labeled (7). Blue (8) and red (9) lines are tracks of T. thynnus migrating into the Mediterranean Sea carrying electronic tags deployed off North Carolina.
