Tagging a Giant Bluefin (image) Stanford University - Hopkins Marine Station Caption Stanford University researcher Dr. Steve Wilson tags a 700 lb. bluefin tuna in Canada that has been tracked to the Gulf of Mexico. Credit Tag-A-Giant Foundation Usage Restrictions For this story only; please contact email@example.com if you want to use it for something else. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.