Abudefduf sexfasciatus

Scissor tail sergeant | Sixbanded Sergeant | Stripetailed Damsel | Abudefduf coelestinus
Abudefduf sexfasciatus
Abudefduf sexfasciatus, Naigani Is, Fiji, Photo: Andrew Green
Abudefduf sexfasciatus
Abudefduf sexfasciatus, Seychelles, Photo: Rick Stuart-Smith
Abudefduf sexfasciatus
Abudefduf sexfasciatus, WA, Australia, Photo: Rick Stuart-Smith
Abudefduf sexfasciatus
Abudefduf sexfasciatus, Spawning colours; NSW, Australia, Photo: Rick Stuart-Smith
Abudefduf sexfasciatus
Abudefduf sexfasciatus, WA, Australia, Photo: Rick Stuart-Smith
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Abudefduf sexfasciatus
Abudefduf sexfasciatus
Abudefduf sexfasciatus
Abudefduf sexfasciatus
Abudefduf sexfasciatus

Distribution

Tropical Indo-Pacific


Description

Silvery grey with a forked black scissor-tail with light outer margins, and 5 black bars. Like other sergeants, feeds on plankton above the reef during the day, often in large schools, retreating into crevices at night.


Information

Max Size: 16 cm

Sea Temperature Range: 18.5-31.1°C

Depth: 1-20m

Habitat Generalization Index: 16.39

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: Frequent (16.6% 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 (23 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.