Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Caesionidae
(Fusiliers) > Caesioninae
Etymology: Caesio: Latin, caesius, bluish-grey, 1835; it is the same name given to the silvery metal (Cs) (Ref. 45335).
Environment / Climate / Range
Marine; reef-associated; non-migratory. Tropical; 29°N - 29°S, 32°E - 115°E
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 402)
soft rays: 11 - 13. Body blue dorsally, white to pale bluish ventrally. Tips of caudal lobes with a large black blotch. Usually 4 rows of cheek scales; 21-26 predorsal scales; scaled dorsal and anal fins; Supra-temporal band of scales interrupted at dorsal midline by a V-shaped scaleless zone. Upper peduncular scale rows usually 11 (10-12); lower peduncular scale rows usually 15 (14-15). A small process on basioccipital for attachment of Baudelot's ligament, separated from condyle by a prominent concavity on ventral surface of basioccipital. Post maxillary process single; posterior end of maxilla blunt.
Indian Ocean: East Africa, including the Red Sea and the Arabian (Persian) Gulf, to western Indonesia.
Inhabits deep lagoons and seaward reefs. Feeds on zooplankton in midwater aggregations. Forms schools with other caesionids. Oviparous, with numerous, small pelagic eggs (Ref. 402). Juveniles used as tuna bait fish.
Carpenter, K.E., 1987. Revision of the Indo-Pacific fish family Caesionidae (Lutjanoidea), with descriptions of five new species. Indo-Pac. Fish. (15):56 p.
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: minor commercial; bait: occasionally
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01075 (-0.17245 - 0.19394), b=3.08 (2.98 - 3.18), based on LWR estimates for this family-BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.45 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (28 of 100) .