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Sergeant Major
Common

Sergeant Major

Abudefduf saxatilis

A small, yellow and black striped damselfish commonly found around coral reefs and rocky areas. Known for their territorial behavior and distinctive vertical black bars.

The record

Sergeant Major at a glance

Scientific name
Abudefduf saxatilis
Typical size
4-6 inches
Water
Saltwater
Habitat
Reef
Rarity in the Fishdex™
Common
Where it lives

Habitat

Inhabits shallow coral reefs, rocky outcrops, and nearshore waters throughout the Caribbean and western Atlantic. Often seen in large schools around reefs but becomes territorial when nesting. Not typically targeted by anglers but occasionally caught while fishing for other reef species.

Catch one and it is yours

Log a sergeant major through the Cobia Camera and this entry fills in with your photo, your personal best, and the exact conditions on the day. The app also carries the slot and season rules for wherever you are standing.

How the Fishdex™ works
Questions

Sergeant Major questions people ask

Sergeant Major is Abudefduf saxatilis.

A typical sergeant major runs 4-6 inches. Cobia records the length and weight of every sergeant major you log and keeps your personal best on its Fishdex entry.

Inhabits shallow coral reefs, rocky outcrops, and nearshore waters throughout the Caribbean and western Atlantic. Often seen in large schools around reefs but becomes territorial when nesting. Not typically targeted by anglers but occasionally caught while fishing for other reef species. It is a salt water species, filed under reef in the Fishdex.

Yes. Log one through the Cobia Camera and this entry fills in with your own photo, your personal best, and the conditions on the day you caught it. The app also carries the slot limits and season dates for wherever you are standing. It is free.

Free on iPhone

Tomorrow morning starts tonight

Set your home water, pick a drive radius, and wake up to a plan.

Download Cobia on the App Store Android coming soon

iPhone, iOS 17 or later. Setup takes about a minute.