The marlin is smoked whole first, then shredded and fried with vegetables, so the smoky flavor comes from the fish itself rather than from any spice or sauce added later.
Smoked marlin is shredded and sautéed with tomato, onion, and jalapeño, then piled onto a fried corn tortilla and topped with cabbage and crema. Seafood carts along Mazatlán's malecón sell them as a quick, smoky-tasting bite.