Caesioperca rasor

Serranidae
Barber Perch
  • Caesioperca rasor, Female, Stanley, TAS, Photo: Rick Stuart-Smith
    Caesioperca rasor, Female, Stanley, TAS, Photo: Rick Stuart-Smith
  • Caesioperca rasor, Male, Port Phillip Bay, Photo: Toni Cooper
    Caesioperca rasor, Male, Port Phillip Bay, Photo: Toni Cooper
  • Caesioperca rasor, Juvenile, Stanley, TAS, Photo: Rick Stuart-Smith
    Caesioperca rasor, Juvenile, Stanley, TAS, Photo: Rick Stuart-Smith
  • Caesioperca rasor, Juvenile, Tasman Peninsula, Tas, Photo: Andrew Green
    Caesioperca rasor, Juvenile, Tasman Peninsula, Tas, Photo: Andrew Green
  • Caesioperca rasor, Male, Melbourne, VIC, Photo: Rick Stuart-Smith
    Caesioperca rasor, Male, Melbourne, VIC, Photo: Rick Stuart-Smith
  • Caesioperca rasor, Male, Melbourne, VIC, Photo: Rick Stuart-Smith
    Caesioperca rasor, Male, Melbourne, VIC, Photo: Rick Stuart-Smith
  • Caesioperca rasor, Male, Charlotte Cove, Tasmania, Photo: Ian Shaw
    Caesioperca rasor, Male, Charlotte Cove, Tasmania, Photo: Ian Shaw
Distribution
Temperate Australasia
Description
Differs from butterfly perch in having a bar rather than a round blotch on the body in adults, a greater proportion of blue in the colouration, and a narrower body shape. Juveniles usually have a mauve head and pink body. It occurs in mixed schools with butterfly perch in some areas but generally prefers shallower and more sheltered habitats.
Information
  • Max Size: 25 cm
  • Sea Temperature Range: 10.8-20.9°C
  • Depth: 2-100m
  • Habitat: Rocky Reef
  • Habitat Generalisation Index: 8.4
    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: Common (23% 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: Many (26 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney
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