Trachinops noarlungae

Plesiopidae
Yellow-headed Hulafish
  • Trachinops noarlungae, Adelaide, SA, Photo: Graham Edgar
    Trachinops noarlungae, Adelaide, SA, Photo: Graham Edgar
  • Trachinops noarlungae, Adelaide, SA, Photo: Rick Stuart-Smith
    Trachinops noarlungae, Adelaide, SA, Photo: Rick Stuart-Smith
  • Trachinops noarlungae, With T brauni. Rottnest Is, WA, Photo: Andrew Green
    Trachinops noarlungae, With T brauni. Rottnest Is, WA, Photo: Andrew Green
Distribution
Temperate Australasia
Description
Differ from southern hulafish in having more scales (73-90 cf. 45-51 in front segment of lateral line) and a yellow tail with a blue margin.
Information
  • Max Size: 15 cm
  • Sea Temperature Range: 13.1-22.8°C
  • Depth: 4-30 m
  • Habitat: Rocky Reef
  • Habitat Generalisation Index: 11.3
    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: Not Evaluated
  • Occurrence: Common (48% 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: Large aggregations (210 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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