Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Pomacentridae
(Damselfishes) > Pomacentrinae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335); brevirostris: Name from Latin words 'brevis' meaning short and 'rostrum' for beak or snout, referring to the very short snout of this species relative to other species in the genus.
Environment / Climate / Range
Marine; reef-associated; depth range 42 - 120 m (Ref. 59379), usually 90 - 120 m (Ref. 90102). Tropical; 12°N - 21°S, 134°E - 178°W
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.8 cm SL male/unsexed; (Ref. 59379)
soft rays: 15 - 16. This species is distinguished by the following characters: Dorsal rays XIII,13-14, usually 14; anal rays II,15-16; pectoral rays 18-19, usually 19; spiniform caudal rays 2-3, usually 3; tubed lateral-line scales 14-16; gill rakers 6-8 + 19-22 (usually 6-7 + 19-21; total 26-29); body depth 1.57-1.77 in SL. Color when fresh is pale lavender-tinged gray dorsally, paler ventrally; 3 or 4 rows of scales dorsally from nape to upper caudal peduncle with gold edges; small scales on basal sheath of dorsal fin almost entirely gold; median fin membranes lavender gray or translucent blue, suffused with gold color; iris yellow (Ref. 59379).
Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri
Western Pacific: Marshall Islands southward to Fiji, across the Caroline Islands from Puluwat to Palau, and south to Vanuatu. This species was not observed at Rarotonga (Cook Islands), Kiritimati (Line Islands), nor in American Samoa during brief surveys of deep reefs in these areas.
Adults are generally abundant in their usual environment, steep slopes and drop-offs at depths of about 90-120 m; usually with small holes and limestone talus, often in aggregations ranging from 6 to several dozen individuals seen feeding low in the water column (Ref. 59379). 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). Minimum range from Ref. 82433, where this species was found together with Chromis unipa.
Pyle, R., J.L. Earle and B.D. Greene, 2008. Five new species of the damselfish genus Chromis (Perciformes: Labroidei: Pomacentridae) from deep coral reefs in the tropical western Pacific. Zootaxa 1671:3-31.
IUCN Red List Status (Ref. 90363)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
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=0.02240 (0.00990 - 0.05070), b=3.00 (2.82 - 3.18), based on LWR estimates for this Genus-BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (17 of 100) .