Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Kyphosidae
(Sea chubs) > Kyphosinae
Etymology: Kyphosus: Greek, kyphos = bent (Ref. 45335).
Environment / Climate / Range
Marine; pelagic-oceanic; depth range 1 - 20 m (Ref. 89972). Tropical; 37°N - 18°S, 138°E - 77°W
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 59.0 cm TL male/unsexed; (Ref. 38398); common length : 25.0 cm TL male/unsexed; (Ref. 55763); max. published weight: 2.0 kg (Ref. 38398)
soft rays: 14;
Vertebrae: 26. This species is distinguished by the following characters: body oval elongate, somewhat compressed; body distinctively coloured with wavy yellow and bluish stripes horizontal to the body, originating from mouth with a yellow and a blue wavy stripe stretching back to the caudal peduncle; head yellow to silvery with blue streak behind eye on operculum; metallic blue dorsally and white ventrally; caudal fin deeply forked; very low dorsal and anal fins; D XI,15; A III,14; teeth incisor-shaped: scales on interorbital region; external side of first gill arch with high number of gill rakers, 16-19 on lower limb, 7-8 on upper; total lateral line scale rows 80-85, 59-64 with pores; longitudinal scale rows 68-77; precaudal vertebrae 10, caudal 16; pterygiophores, anal 15 and dorsal 24 (Ref. 95491).
Eastern Pacific: from Galapagos to Hawaii and across the Pacific to SE Japan, Guam and Palau, and Marquesas; possibly Micronesia.
Occurs both as solitary individuals and in schools together with K. elegans and K. vaigiensis and are found close to the surface (< 25 m) on rocky shores, the open ocean and reefs on isolated islands (Ref. 95491). Also swim rapidly in small, somewhat polarized groups or schools in open water over deep reefs, along walls and drop-offs (Ref. 5227) or usually seen near floating logs far out to sea (Ref. 11482). This species differs from its congeners in having an omnivorous diet that includes zooplankton (Ref. 95491). Not common.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Knudsen, S.W. and K.D. Clements, 2013. Revision of the fish family Kyphosidae (Teleostei: Perciformes). Zootaxa 3751(1):001-101. (Ref. 95491)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00715 - 0.04425), b=3.01 (2.79 - 3.23), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.37 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (47 of 100) .