'Ōmilu (Bluefin Trevally (Caranx melampygus) in Hawaii)

'Ōmilu

Bluefin Trevally · Caranx melampygus
NATIVE · SELECTIVE HARVEST
What is a 'Ōmilu? 'Ōmilu is the Hawaiian name for the bluefin trevally (Caranx melampygus), a native Hawaiian species taken selectively by spearfishers. It inhabits coral reef, rocky bottom, reef edges at 5–80 ft around the Big Island, and is excellent eating.
Depth5–80 ft
SeasonApr–Nov
DifficultyIntermediate
CiguateraLow

About the 'Ōmilu

The electric-blue spotted trevally is one of Hawaii's most beautiful reef fish. Smaller than Ulua but equally aggressive, 'Ōmilu are found throughout the reef and are excellent table fare. A great target for intermediate spearfishers.

How we hunt them

Often found hunting in pairs or small groups along the reef. They respond well to flashers and are less wary than Ulua. Target sandy patches adjacent to reef structure where they ambush prey.

Rules & regulations

ʻŌmilu counts as ulua under state law. Minimum size 10 inches (16 inches to sell). Bag limit 20 per person per day, all ulua and pāpio combined.

Source: HAR 13-95-22 · Verified September 2026 · Always confirm current rules with Hawaiʻi DLNR

Non-residents age 15+ also need the Hawaiʻi nonresident marine fishing license (HAR 13-74-11). Buy it online or see our regulations guide.

Hunt 'Ōmilu with a guide

Every Top Shot Spearfishing dive covers species ID, regulations, and technique. Beginners welcome.

Group Dive · $299Private Dive · $449+