Side by Side

Spanish Mackerel Scomberomorus maculatus

Typical: 14–22 in, 1–3 lb

Key field mark: Golden-yellow oval spots plus a black front patch on the first dorsal fin and an evenly sloping lateral line separate Spanish from the spot-poor king mackerel.

• Greenish back, silver sides with round golden-yellow spots (no stripes)
• Front third of first dorsal fin jet black
• Lateral line slopes gently to the tail, no abrupt dip
• Forked tail; row of finlets behind dorsal and anal fins
• Adults rarely exceed a few pounds (much smaller than king)

Full Spanish Mackerel guide — season, gear and rules →

Wahoo Acanthocybium solandri

Typical: 40–60 in, 20–50 lb

Quickest tell: Vivid electric-blue vertical bars and a long razor-toothed beak separate wahoo from the unbarred, spot-free king mackerel.

• Long, slender, torpedo body; iridescent blue-gray with vivid blue vertical bars
• Long beak-like snout with razor triangular teeth
• Tall first dorsal fin running most of the back
• Deeply forked tail, row of finlets
• Hinged jaw that folds; skin appears nearly scaleless

Full Wahoo guide — season, gear and rules →

When Each Is Running July — current month highlighted

Where Spanish Mackerel and Wahoo Overlap

Both run in Gulf of Mexico, Mid-Atlantic, Southeast Atlantic — that is where telling them apart actually matters.

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