Lethrinus nebulosusSpangled emperor | Blue Emperor | Green Snapper | North-west Snapper | Sand Bream | Sand Snapper
Slightly concave upper head profile, blue streaks on face, rows of blue scales appearing as spots along body. Juveniles with yellow tail and yellow-stripes on belly. More common than similar L. laticaudis (Grass Emperor) and L. lentjan (Redspot Emperor), the former differing in head profile, and the latter with red blotch on the margin of the operculum.
Max Size: 87 cm
Sea Temperature Range: 17.4-31.1°C
Habitat Generalization Index: 12.34
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 (9.7% 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 (5 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