Blackfin Tuna Morningby Bar Jack Fishing and the Lady K Drift Boatin "What's Biting?"on Posted on August 10, 2008 Bill Corner of Lake Worth pulled off a great catch on light spinning tackle with this 24lb Blackfin Tuna this morning. He noted that once he realized he had a Blackfin on the light tackle, there wasn’t only tension in the line! 24lb Black Fin Tuna Like this:Like Loading...