Pseudobalistes naufragium

Balistidae
Stone Triggerfish, Blunthead Triggerfish, Stone Triggerfish
  • Pseudobalistes naufragium, Machalilla, Ecuador, Photo: Graham Edgar
    Pseudobalistes naufragium, Machalilla, Ecuador, Photo: Graham Edgar
  • Pseudobalistes naufragium, Machalilla, Ecuador, Photo: Graham Edgar
    Pseudobalistes naufragium, Machalilla, Ecuador, Photo: Graham Edgar
Distribution
Tropical Eastern Pacific
Description
Angular oval-shaped body with broad dark bands which are often broken and blotchy, a network of narrow oblique blue lines on body turning into scribbles on back and tail base, and blue spots on face. Dorsal and anal fins high, and used for primary swimming propulsion.
Information
  • Max Size: 100 cm
  • Sea Temperature Range: 23.4-31.1°C
  • Depth: 3-36m
  • Habitat: Coral Reef, Rocky Reef, Soft sediment
  • Habitat Generalisation Index: 12.3
    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: Common (25% 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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