Heniochus singularius
Singular Bannerfish | Heniochus singularis
Distribution
Temperate Australasia, Tropical Indo-Pacific
Description
Mainly black with a solid white bar originating behind the eye, and a second, diffuse white bar at the mid-body. Dorsal fin yellow except for a short white pennant on leading edge, which the central dark body margin passes in front of rather than behind as in H. monoceros. Prominent protuberance on forehead, like H. monoceros and H. varius, but has dark brown to black anal fin rather than largely white and yellow in H. monoceros. White dorsal pennant originates from the rear white body bar, whereas it originates from the first white bar in H. monoceros.
Information
Max Size: 30 cm
Sea Temperature Range: 22.3-31.4°C
Depth: 2-250m
Habitat Generalization Index: 4.09
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: Least Concern
Occurrence: Infrequent (7.5% 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: Few (2 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: Jo Schmid