Actinopteri (ray-finned fishes) > Ovalentaria/misc
() > Pomacentridae
(Damselfishes) > Pomacentrinae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; non-migratory; depth range 6 - 45 m (Ref. 9710). Tropical; 35°N - 30°S
Indo-West Pacific: Three isolated populations: 1) southern Japan, Ryukyu Islands, and Taiwan; 2) Coral Sea including New Caledonia, Vanuatu, Fiji and eastern Australia; 3) Mauritius and Réunion in the western Indian Ocean. Has been photographed at Leadsman Shoal (Ref. 11228); also known from the Philippines.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm SL male/unsexed; (Ref. 7247)
Adults inhabit outer coral or rocky reefs. They usually form large aggregations in shallow waters e.g. in lagoons; feeding well above the bottom on zooplankton (Ref. 2334). Diurnal species (Ref. 54980; 113699). 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).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. (Ref. 7247)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.5 - 28.3, mean 27 °C (based on 208 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02630 (0.01558 - 0.04440), b=3.07 (2.93 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.09 se; based on food items.
Generation time: 1.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K=0.8).
Vulnerability (Ref. 59153
): Low vulnerability (17 of 100) .