Abudefduf saxatilis. This small, flat, oval shaped reef fish has five distinct black bars on its sides. While in sandy areas and over reefs, it is in its. Latin name, Abudefduf saxatilis. Common name, Sergeant major. Family, Pomacentridae – Abudefduf. Origin, West Indian Ocean, The Mexican Golf, West. Biology. Juveniles are common in tide pools while adults found over shallow reef tops. Adults frequently form large feeding aggregations of up to several.

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Adults frequently form large feeding aggregations of up to several hundred individuals. They also grow relatively large in comparison to the other fish in this family. This species may be a threat to some types of invertebrates. Sergeant majors are associated with shallow reefs. Also, juveniles may hold cleaning stations together with the doctorfish Acanthurus chirurgus and the blue tang Acanthurus coeruleus and graze algae as well as pick molted skin and parasites from green turtles Chelonia mydas.

Wonderful Scientific Names, Part 4: It grows to a maximum length of about Sometimes a faint sixth bar may be seen on the caudal penduncle.


Males reach maturity at lengths of 3. Retrieved 4 October The upper third of the body is yellow while the soft dorsal, caudal, and anal fins appear dusky.

Sergeant major (fish)

The sergeant majors is an oviparous species in which the males create nests where the females to lay their egg masses on rocks, reef outcrops, shipwrecks, and pilings. Retrieved from ” https: This site uses cookies.

Aggressive This species can be extremely aggressive towards other fish. In this case, a “normal” aquarium is a reef aquarium with mixed corals or a fish only aquarium with an approximately salinity of 1. Named from the military stripes they resemble, the sergeant majors school in groups of hundreds for feeding, but during spawning season, the male will aggressively guard his nest.

The vertical black bars may be indistinct on very young individuals and the fins colorless. They do tend to get more aggressive when they have an anemone or when carrying eggs.

Cancel reply Enter abudefdur comment here This coloration is also often observed in the males during spawning and nest guarding activities. Wikimedia Commons has media related to Sergeant major.

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These schools swim over shallow reef tops at depths of feet m. It might be possible to keep smaller specimens for a limited period in a smaller tank.


Coloration There are two color phases: Native range All suitable habitat Point map Year The sergeant major is of only minor importance to commercial fisheries, however when it is caught it is marketed fresh. Predators of this fish include Plectropomus leopardusThalassoma bifasciatumCephalopholis cruentataEpinephelus striatusMycteroperca venenosaand Rachycentron canadum. And why ignore the defduf? It has 5 vertical stripes which are black.

Sergeant major (fish) – Wikipedia

It is replaced in the Indo-Pacific region by the closely related Abudefduf vaigiensis G. It seems to have a time-signature change between genus and species, which arises because the species name is conventionally Latin, while the genus name is Arabic. Fill in your details below or click an icon to log in: Syzygium aromanticum Scientist Sees Squirrel. To find out more, including how to control cookies, see here: Tropical Fish Hobbyist Magazine.