Ortiz Yellowfin Tuna in Olive Oil - Atun Claro - Glass Jar (Orange Label)7. 76 oz Spain Kosher (see large image) Yellowfin tuna is known as Atun Claro in Spain and is some of the most flavorful tuna you will ever taste. These beautiful loin segments of Atun Claro are packed in extra virgin olive oil and hand cut from yellowfin caught on the dense tuna banks off the coast of Basque Country. The fishing boats of Ortiz, a premier name in seafood packing, capture the fish using traditional methods, which respects the