Balistapus undulatus

Balistidae
Striped Triggerfish, Orange-lined Triggerfish, Orangestripe Triggerfish, Red-lined Triggerfish, Undulate Triggerfish
  • Balistapus undulatus, Maldives, Photo: Rick Stuart-Smith
    Balistapus undulatus, Maldives, Photo: Rick Stuart-Smith
  • Balistapus undulatus, QLD, Australia, Photo: Andrew Green
    Balistapus undulatus, QLD, Australia, Photo: Andrew Green
  • Balistapus undulatus, Bali, Indonesia, Photo: Ian Shaw
    Balistapus undulatus, Bali, Indonesia, Photo: Ian Shaw
  • Balistapus undulatus, Bali, Indonesia, Photo: Ian Shaw
    Balistapus undulatus, Bali, Indonesia, Photo: Ian Shaw
  • Balistapus undulatus, Bali, Indonesia, Photo: Ian Shaw
    Balistapus undulatus, Bali, Indonesia, Photo: Ian Shaw
Distribution
Tropical Indo-Pacific
Description
Thin diagonal orange stripes on green background, with a yellow tail, orange pectoral fin and a large black spot on tail base. Tail base spot replaced by small black spines on Indian Ocean fish. Retreats into cracks and crevices in the reef when approached.
Information
  • Max Size: 30 cm
  • Sea Temperature Range: 24.0-31.4°C
  • Depth: 2-50m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 20.2
    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: Not Evaluated
  • Occurrence: Common (42% 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: Few (2 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: Joe Shields
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