Fish IDReef/Wreck

Yellowfin Grouper

Description: Color highly greenish olive or bright red with longitudinal rows or darker black blotches over entire fish; outer one-third of pectoral fins bright yellow; lower parts of larger fish with small bright red spots.

Similar Fish: Black grouper, M. bonaci; other grouper.

Where Found: Offshore on reefs off southern portions of Florida.

Size: Common to 20 pounds.

Remarks: Undergoes sex change from female to male in latter part of life; specific name translated to “venomous,” alluding to the fact that this fish, perhaps more frequently than other grouper, is associated with ciguatera poisoning; feeds on fish and squid.