Pycnochromis vanderbilti

Vanderbilts Puller | Blackfin Chromis | Chromis vanderbilti
Pycnochromis vanderbilti
Pycnochromis vanderbilti, adult, Lord Howe Is, NSW, Photo: Andrew Green
Pycnochromis vanderbilti
Pycnochromis vanderbilti, adult, Photo: Rick Stuart-Smith
Pycnochromis vanderbilti
Pycnochromis vanderbilti, adult, Lizard Island, GBR, Photo: Joe Shields
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Pycnochromis vanderbilti
Pycnochromis vanderbilti
Pycnochromis vanderbilti


Tropical Indo-Pacific


Lines of blue spots along a largely brown body with yellow sides, blue margin on dorsal and anal fins. Very similar to C. nigrura and C. lineata, but with black lower lobe of tail and yellow upper lobe.


Max Size: N/A cm

Sea Temperature Range: 19.9-29.9°C

Depth: 1-20m

Habitat Generalization Index: 12.92

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: Common (23.8% 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: Many (55 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.