Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Kyphosidae
(Sea chubs) > Kyphosinae
Etymology: Kyphosus: Greek, kyphos = bent (Ref. 45335); pacificus: Named for its distribution in the Pacific Ocean.
Kyphosus sandwicensis (Sauvage, ) has been considered as an older name for this species, at least for the Hawaiian population (Ref. 54980). Further study of the genus may show that the name Kyphosus sandwicensis will replace the name Kyphosus pacificus elsewhere in the central and western Pacific (Ref. 86689).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range ? - 20 m (Ref. 86942). Subtropical
Western Central Pacific.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 75.0 cm TL male/unsexed; (Ref. 89972)
Morphology | Morphometrics
Diagnosis: Mouth terminal with anterior tip of upper jaw pointed. Anterior part of anal-fin soft-rayed portion well elevated in specimens greater than approximately 20 cm SL; with longest anal-fin soft ray (second) longer than longest dorsal-fin spine (sixth). Pectoral fin long, pointed posteriorly with 18-20 (mode 19) soft rays. Pelvic fin not reaching anus when depressed. Gill rakers 26-29 (mode 27) (Ref. 55727).
Occurs inshore (Ref. 75154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sakai, K. and T. Nakabo, 2004. Two new species of Kyphosus (Kyphosidae) and a taxonomic review of Kyphosus bigibbus Lacepède from the Indo-Pacific. Ichthyol. Res. 51:20-32. (Ref. 55727)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 23.3 - 29.3, mean 28 (based on 1406 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (56 of 100) .