Handbook for the Identification of Yellowfin and Bigeye Tunas — Fresh Condition For fishermen and observers who see live or fresh condition tuna as for trollers, handliners, pole-and-line fishermen and onboard observers
Handbook for the Identification of Yellowfin and Bigeye Tunas — Brine Frozen Condition For port samplers who deal with identifying tuna from purse seine vessels at unloading
Handbook for the Identification of Yellowfin and Bigeye Tunas — Fresh but Less than Ideal Condition For observers and port samplers who have to deal with identification of tuna in poor condition, with little color, markings, and damaged fins, as on docks or in fish markets