Stethojulis interrupta

Labridae
Cut-ribbon Wrasse, Brokenline Wrasse, One-line Rainbowfish, Spot-bellied Rainbowfish
  • Stethojulis interrupta, Male, NSW, Australia, Photo: Ian Shaw
    Stethojulis interrupta, Male, NSW, Australia, Photo: Ian Shaw
  • Stethojulis interrupta, Female, NSW, Australia, Photo: Ian Shaw
    Stethojulis interrupta, Female, NSW, Australia, Photo: Ian Shaw
  • Stethojulis interrupta, Juvenile, WA, Australia, Photo: Rick Stuart-Smith
    Stethojulis interrupta, Juvenile, WA, Australia, Photo: Rick Stuart-Smith
  • Stethojulis interrupta, Male, Bali, Indonesia, Photo: Ian Shaw
    Stethojulis interrupta, Male, Bali, Indonesia, Photo: Ian Shaw
  • Stethojulis interrupta, Juvenile, WA, Australia, Photo: Rick Stuart-Smith
    Stethojulis interrupta, Juvenile, WA, Australia, Photo: Rick Stuart-Smith
  • Stethojulis interrupta, Female, NSW, Australia, Photo: Rick Stuart-Smith
    Stethojulis interrupta, Female, NSW, Australia, Photo: Rick Stuart-Smith
  • Stethojulis interrupta, Juvenile, Jervis Bay, NSW, Photo: Andrew Green
    Stethojulis interrupta, Juvenile, Jervis Bay, NSW, Photo: Andrew Green
  • Stethojulis interrupta, Juvenile, WA, Australia, Photo: Rick Stuart-Smith
    Stethojulis interrupta, Juvenile, WA, Australia, Photo: Rick Stuart-Smith
  • Stethojulis interrupta, Juvenile, Montague Is, NSW, Photo: Andrew Green
    Stethojulis interrupta, Juvenile, Montague Is, NSW, Photo: Andrew Green
Distribution
Temperate Australasia, Temperate northern Pacific, Tropical Indo-Pacific
Description
Male distinguished from other Stethojulis species by broken mid stripe. Females and juveniles highly variable, but often have yellow snout and distinct black mottling pattern (like a mackerel) behind pectoral fin - but this can be difficult to see in dark/striped forms. Small schools, moving and feeding like sparrows at a cafe.
Information
  • Max Size: 13 cm
  • Sea Temperature Range: 15.4-30.9°C
  • Depth: 1-18 m
  • Habitat: Coral Reef, Rocky Reef, Soft sediment
  • Habitat Generalisation Index: 16.9
    Also referred to as the SGI (Species generalisation index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here
Rarity
  • IUCN Threat Status: Least Concern
  • Occurrence: Frequent (18% of sites)
    Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed
  • Abundance: Several (5 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland
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