Amblygobius nocturnus
Pyjama Goby | False Sleeper Goby | Nocturn Goby | Nocturna Goby
Amblygobius nocturnus, Lord Howe Island, NSW, Australia, Photo: Ian Shaw
Amblygobius nocturnus, Lord Howe Is, NSW, Australia, Photo: Andrew Green
Similar Species
Distribution
Temperate Australasia, Tropical Indo-Pacific
Description
Pale body with narrow red stripes on head fading along body. Similar A. decussatus (Crosshatch Goby) has prominent white tail spot with orange centre, and faint vertical bars on body. Hovers close to the bottom over sand and rubble areas near reefs. Darts into nearby holes when approached.
Information
Max Size: 10 cm
Sea Temperature Range: 18.9-30.6°C
Depth: 1-30m
Habitat Generalization Index: 2.7
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 (10.2% 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.
Edit by: Joe Shields