While a juvenile will typically school with other juveniles, an adult barred spinefoot will usually be found in an isolated pair.
  • Size

    Common length of 7.8-9.8 inches (20-25 cm)
  • Diet

    Primarily algae and seaweed
  • Range

    Western Pacific through eastern Indonesia, north to Palau and south to Australia and Tonga
  • Habitat

    Seaward reefs and lagoons

Physical Characteristics

  • Coloration is blue and yellow. Body is light blue transitioning to gray or light yellow on the belly with a pattern of yellow lines. Dorsal and caudal fins are yellow, and a single orange band extends from the base of the pectoral fins nearly to the spine.
  • Common length of 7.8-9.8 inches (20-25 cm).
  • Venomous dorsal spines.

Animal Fact

Upper jaw is fixed and only the tip of the mouth can move, creating a nibbling motion suited for collecting algae off rocks and coral.

Diet / Feeding

  • Diet consists only of vegetation, primarily algae and seaweed.
  • Upper jaw is fixed and only the tip of the mouth can move, creating a nibbling motion suited for collecting algae off rocks and coral.

Range / Habitat

  • Occurs in the Western Pacific through eastern Indonesia, north to Palau and south to Australia and Tonga.
  • Found in areas of seaward reefs and lagoons with high coral populations at depths of 6.5-49.2 (2-15 m).
    • Adult commonly found in deeper water lagoons and reef drop-offs.
    • Juvenile schools within vegetation in reefs and lagoons of shallower water.

Reproduction & Growth

  • Pelagic spawners, meaning eggs are spawned into the water column, where they hatch and larvae develop.
  • Spawn in groups based on lunar cycle.
  • Form breeding pairs for at least the duration of a mating season.

Conservation Status

  • “Least Concern” on the IUCN Red List.

Additional Information

  • Adults usually found in isolated pairs, but juveniles school with other juveniles and occasionally with juvenile scarids (parrotfish).

Sources

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