Yellowfin tuna

Photo: Almcglashan · CC BY-SA

Yellowfin tuna patrol the open-water margins of Cap Est during the cooler months when upwelling raises productivity along the eastern coast. They hunt in coordinated packs that drive baitfish toward the surface, creating boil-ups visible from boats. A large adult can exceed two metres and 200 kg, making them among the most powerful pelagics encountered on drift dives here.