Calico Grouper

Physical Characteristics

The Calico Grouper has a robust body and a large mouth. Its coloration is typically mottled, with a reddish-brown to grayish background extensively covered with irregular whitish or pale spots and blotches, creating a 'calico' pattern. There are often dark spots on the cheek and operculum. The fins are generally consistent in color with the body or slightly darker. It has a continuous dorsal fin with a spiny and a soft-rayed portion. The caudal fin is truncate to slightly emarginate.

Habitat & Distribution

The Calico Grouper is primarily a benthic fish associated with rocky reefs, kelp beds, and shell/rubble bottoms. It is found in the Eastern Pacific Ocean, specifically along the coast of California (USA) and Baja California (Mexico). They typically inhabit depths from nearshore waters down to about 200 feet (60 meters).

Size & Weight

Calico Groupers typically grow to about 2 feet (60 cm) in length and can weigh up to 10 pounds (4.5 kg). The maximum recorded size is approximately 3 feet (90 cm) in length and around 15-20 pounds (7-9 kg).

Similar Looking Species

The Calico Grouper can be distinguished from other grouper species in its range by its distinct mottled calico pattern. Other Mycteroperca species found in the same region, such as the Broomtail Grouper (Mycteroperca xenarcha) or Gulf Grouper (Mycteroperca jordani), generally have different coloration and body patterns, often being more uniformly colored or having distinct vertical bars rather than the speckled appearance of the Calico Grouper.

Ecological Role

Calico Groupers are important apex predators within their reef and rocky bottom habitats, feeding on smaller fish, crustaceans, and cephalopods. They help maintain the balance of their ecosystems by controlling populations of their prey. As juveniles, they may serve as prey for larger fish species. Their conservation status is currently listed as 'Least Concern' by the IUCN, but like many grouper species, they can be vulnerable to overfishing and habitat degradation.

Identified on: 8/14/2025

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