Mycteroperca olfax

Serranidae
Sailfin Grouper, Colorado Grouper, Sailfin Grouper, Yellow Grouper
  • Mycteroperca olfax, Malpelo Island, Colombia, Photo: Graham Edgar
    Mycteroperca olfax, Malpelo Island, Colombia, Photo: Graham Edgar
  • Mycteroperca olfax, Galapagos Islands, Ecuador, Photo: Graham Edgar
    Mycteroperca olfax, Galapagos Islands, Ecuador, Photo: Graham Edgar
  • Mycteroperca olfax, Malpelo Island, Colombia, Photo: Graham Edgar
    Mycteroperca olfax, Malpelo Island, Colombia, Photo: Graham Edgar
Distribution
Tropical Eastern Pacific
Description
Olive to dark brown with darker and sometime purplish spots and short broad bars on mid side. Another colour form plain brown. Found around walls, drop-offs and other well structured vertical formations.
Information
  • Max Size: 120 cm
  • Sea Temperature Range: 20.1-27.6°C
  • Depth: 5-73m
  • Habitat: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 8.5
    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
  • Threats: Exploitation
  • IUCN Threat Status: Vulnerable
  • Occurrence: Widespread (68% 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: Joe Shields
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