Istigobius rigilius, QLD, Australia, Photo: Joe Shields
Istigobius rigilius, Adult, Lord Howe Is, NSW, Photo: Andrew Green
Istigobius rigilius, Adult, Northern Great Barrier Reef, QLD, Photo: Andrew Green
Istigobius rigilius, Adult, Lord Howe Is, NSW, Photo: Ian Shaw
Pale body with orange/brown and white speckles, dark marks on operculum, row of paired brown spots along body behind pectoral fin, with white spots in between. Paired spots, less fused and brown rather than black compared with similar I. decoratus (Decorated Sandgoby). Found on sand patches near reefs.
Max Size: 10 cm
Sea Temperature Range: 19.1-31.2°C
Habitat: Coral Reef, Soft sediment
Habitat Generalisation Index: 10.2
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: Least Concern
Occurrence: Frequent (14% 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 (5 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.