Chromis dimidiata, Red Sea, Photo: Rick Stuart-Smith
Chromis dimidiata, Red Sea, Photo: Rick Stuart-Smith
Distribution
Localised
Description
This species is restricted to the Red Sea. Populations in the Indian Ocean are now considered a separate species, C. fieldi, which has a more curved demarcation between white and black parts of the body (such that the white often covers more of the dorsal spines).
Information
Max Size: 9 cm
Sea Temperature Range: 21.5-32.9°C
Depth: 1-36 m
Habitat: Coral Reef
Habitat Generalisation Index: 23.9
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
Rarity
IUCN Threat Status: Not Evaluated
Occurrence: Widespread (79% 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: Large aggregations (202 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Chromis dimidiata, Red Sea, Photo: Rick Stuart-Smith
Chromis dimidiata, Red Sea, Photo: Rick Stuart-Smith
