Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Pomacentridae
(Damselfishes) > Pomacentrinae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Environment / Climate / Range
Marine; reef-associated; non-migratory; depth range 3 - 60 m (Ref. 9626), usually 10 - 20 m (Ref. 9626). Tropical; 32°N - 10°N
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 27000)
soft rays: 12. Body bright blue, scarcely paler below, with black stripe (Ref. 26938). Black margin on spinous dorsal fin, upper and lower lobes of caudal fin and front of anal fin; no black spot at pectoral base (Ref. 13442).
Western Atlantic: Bermuda, southern Florida (USA), and the Caribbean Sea. Including the Bahamas, Gulf of Mexico and Antilles (Ref. 26938).
Adults are common above deep outer reefs and feeds in aggregations of the small zooplankton, primarily copepods (Ref. 13442). Often with creole wrasse. They retreat into coral crevices when frightened (Ref. 9710). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p.
IUCN Red List Status (Ref. 90363)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01860 (0.00852 - 0.04061), b=3.00 (2.81 - 3.19), based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.2 se; Based on diet studies.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .