Species guide
How to catch Spotted knifejaw
Oplegnathus punctatus

The spotted knifejaw is a striking saltwater fish known for its robust, deep body and distinctive spotted pattern. It inhabits rocky and coral reefs in subtropical Pacific waters and is prized by anglers for sport. Juveniles often shelter among drifting seaweed, while adults range in deeper reef areas.
Where they live
Found in subtropical Pacific coastal waters, this species prefers rocky and coral reef habitats from shallow 3 meters to depths of 135 meters. Juveniles are commonly seen near drifting seaweed.
Typical size
Up to about 86 cm
What they eat
- crustaceans
- mollusks
Best baits
- crustacean bait
- mollusk shells
- shrimp
Best lures
- soft plastic crustacean imitations
- jigs
- hard plastic minnows
How to fish for them
- bottom fishing
- rock fishing
- drift fishing
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