Pentapodus porosus
Northwest threadfin bream | False Whiptail | North-west Whiptail | Northwest Australian Whiptail | Ornate Butterfish
Similar Species
Distribution
Tropical Indo-Pacific
Description
Torpedo-shaped body, blue head with two yellow stripes on snout before eye, the second of which extends through eye then widens to tail base above diffuse dark lateral stripe, where it turns iridescent and wraps around a small black dot, blue stripe along back below dorsal fin and an oblique yellow stripe on cheek below eye. Juveniles with thin yellow, black, grey and white stripes along side. Distinguished from P. paradiseus (Paradise Threadfin Bream) which occurs in north-eastern Australia, and P. setosus, from SE Asia, primarily by location.
Information
Max Size: 27 cm
Sea Temperature Range: 21.5-31.7°C
Depth: 5-50m
Habitat Generalization Index: N/A
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.
Conservation and Rarity
IUCN Status: Not Evaluated
Occurrence: Infrequent (8.2% 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 (6 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