The Tag-A-Giant Foundation is the world’s only organization dedicated entirely to ensuring a future for the northern bluefin tuna

Since 1994, the Tag-A-Giant program of Stanford University has been building the necessary knowledge to maintain bluefin tuna in captivity and sustain healthy populations of wild fish. The team has pioneered electronic tagging of marine fish species across the globe. TAG scientists have tagged over 1,600 northern bluefin tuna in both ocean basins, allowing them to follow the bluefins' wide-ranging journeys across the oceans.  LINK