Sargocentron microstoma

Holocentridae
Smallmouth Squirrelfish, Finelined Squirrelfish, Silver Squirrelfish, Slender Squirrelfish
  • Sargocentron microstoma, Photo: Graham Edgar
    Sargocentron microstoma, Photo: Graham Edgar
  • Sargocentron microstoma, Iles Maria, Austral Islands, Pacific Ocean, Photo: Rick Stuart-Smith
    Sargocentron microstoma, Iles Maria, Austral Islands, Pacific Ocean, Photo: Rick Stuart-Smith
Distribution
Tropical Indo-Pacific
Description
Silver/white lines of unequal width, long 3rd anal fin spine extends past tail base, and a yellow patch on operculum. Hides in crevices and holes in coral reef, especially favours staghorn corals.
Information
  • Max Size: 20 cm
  • Sea Temperature Range: 23.3-30.4°C
  • Depth: 1-183m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 2.4
    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: Infrequent (4% 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 (3 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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