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 10 - 12 m (Ref. 1602). Subtropical; 35°N - 35°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm TL male/unsexed; (Ref. 48636)
soft rays: 9 - 11. Color is pale green to light blue; nesting male is yellow (changing hues during nesting), becoming blackish posteriorly. Looks similar to C. atripectoralis, but generally smaller and lacks the black area on the inside of the pectoral fin base.
Indo-Pacific: Red Sea to the Line, Marquesan, and Tuamoto islands, north to the Ryukyu Islands, south to New Caledonia.
Adults are found in large aggregations above thickets of branching Acropora corals in sheltered areas such as subtidal reef flats and lagoons. Juveniles closely tied to individual coral heads (Ref. 9710). Phytoplankton feeders. Breeding is done on sand and rubble. Males prepare nest for spawning which is shared with several females. Large number of eggs spawned hatching in 2-3 days. Males guard the nest ventilating fertilized egg with their caudal fins and feeding on those which do not hatch. Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (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=0.02396 (-0.10036 - 0.14829), b=2.92 (2.84 - 2.99), based on LWR estimates for species & genus-BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.5 ±0.24 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .