Siganus fuscescens

Siganidae
Black Rabbitfish, Happy Moments, Black Rabbitfish, Black Spinefoot, Dusky Rabbitfish, Fuscescens Rabbitfish, Fuscous Rabbitfish, Fuscous Spinefoot, Mottled Spinefoot, Pearl-spotted Spinefoot, Pearly-spotted Rabbitfish, Pin-spotted Spinefoot, Stinging Bream
  • Siganus fuscescens, Coffs Harbour, NSW, Photo: Ian Shaw
    Siganus fuscescens, Coffs Harbour, NSW, Photo: Ian Shaw
  • Siganus fuscescens, (Night Phase) WA, Australia, Photo: Graham Edgar
    Siganus fuscescens, (Night Phase) WA, Australia, Photo: Graham Edgar
  • Siganus fuscescens, Noosa, QLD, Photo: Andrew Green
    Siganus fuscescens, Noosa, QLD, Photo: Andrew Green
  • Siganus fuscescens, QLD, Australia, Photo: Rick Stuart-Smith
    Siganus fuscescens, QLD, Australia, Photo: Rick Stuart-Smith
Distribution
Temperate Australasia, Temperate northern Pacific, Tropical Indo-Pacific
Description
Variable pattern of spots and blotches across the sides and a large black blotch usually present behind the top of the gill cover. Similar S. argenteus (Forktail Rabbitfish), has distinctly forked tail.
Information
  • Max Size: 40 cm
  • Sea Temperature Range: 16.2-31.2°C
  • Depth: 1-50 m
  • Habitat: Coral Reef, Rocky Reef, Seagrass
  • Habitat Generalisation Index: 15.7
    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: Frequent (10% 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 (16 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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