Saurida gracilis, Red Sea, Photo: Rick Stuart-Smith
Difficult to separate from the more common S. nebulosa (clouded saury) in the field - only by a marginally shorter distance between the end of the folded back pectoral fin tip and the origin of the dorsal fin.
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
IUCN Threat Status: Not Evaluated
Occurrence: Infrequent (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: Several (9 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: extract from RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland