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Chromis xanthura (Bleeker, 1854)

Paletail chromis
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Chromis xanthura   AquaMaps   Data sources: GBIF OBIS
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Image of Chromis xanthura (Paletail chromis)
Chromis xanthura
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Chrominae
Etymology: Chromis: Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; non-migratory; depth range 0 - 40 m (Ref. 7247). Tropical; 35°N - 25°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: widespread, from southern Japan to Australia and Tonga; no records from Hawaii nor French Polynesia. Replaced by Chromis opercularis in the Indian Ocean (Ref. 129596).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 90102)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 13; Dorsal soft rays (total): 10 - 11; Anal spines: 2; Anal soft rays: 10 - 11. This species is distinguished by the following set of characters: D XIII,10-11(mode 11); A II,10-11 (11); pectoral-fin rays 18-20 (19); upper and lower procurrent caudal-fin rays 3; pored lateral-line scales 17-18 (18); gill rakers 6-8 (7) + 19-22 (21) = 26-30 (28); longest dorsal-fin soft ray length 24.6-36.4% (mean 29.4%) of SL; first anal-fin spine length 6.5-8.4% (7.1%) of SL; caudal-fin length 43.9-59.8% (48.6%) of SL; posterior tips of caudal-fin lobes are filamentous; broad black bands along the preopercular and opercular margins, sum width of two bands 15.3-27.9% (23.6%) of head length; distal half of soft-rayed portion of the dorsal fin is transparent in adults; upper or lower caudal-fin base no triangular black blotches; caudal peduncle and fin are tinged with yellow; soft-rayed portions of dorsal and anal fins are yellowish, with spinous portion of dorsal and pelvic fins dark blue in juveniles (Ref. 129596).

Biology     Glossary (e.g. epibenthic)

Adults are found in steep outer reef slopes and shallow coastal reef flats, sometimes forming large aggregations feeding on zooplankton several meters above the bottom. Juveniles remain close to shelter. Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Nests are found in small patches of loose sand under ledges or at the base of slopes (Ref. 9710). Males guard and aerate the eggs (Ref. 205). Diurnal species (Ref. 54980; 113699). Minimum depth reported taken from Ref. 128797.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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).

Main reference Upload your references | References | Coordinator : Allen, Gerald R. | Collaborators

Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 03 February 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; aquarium: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
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Egg(s)
Egg developments
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Larval dynamics
Distribution
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FAO areas
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BRUVS - Videos
Anatomy
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Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
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Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)
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Genetics
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 24.7 - 28.9, mean 27.7 °C (based on 424 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00668 - 0.02988), b=2.94 (2.77 - 3.11), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.45 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 79.2 [39.4, 122.1] mg/100g; Iron = 0.721 [0.430, 1.172] mg/100g; Protein = 18.3 [17.2, 19.4] %; Omega3 = 0.116 [0.070, 0.190] g/100g; Selenium = 25.6 [13.4, 49.3] μg/100g; VitaminA = 132 [39, 433] μg/100g; Zinc = 1.25 [0.83, 1.78] mg/100g (wet weight);