Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Pomacentridae
(Damselfishes) > Pomacentrinae
Etymology: Stegastes: Greek, stegastos, -e, -on = covered (Ref. 45335). More on author: Whitley.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; non-migratory; depth range 1 - 30 m (Ref. 9710), usually - m (Ref. ). Subtropical; 0°C - ; 10°S - 50°S
Western Pacific: endemic to the southern Coral Sea-northern Tasman Sea region; known in Australia, Norfolk Islands, and New Caledonia, New Zealand.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 9710)
soft rays: 13 - 14. Body and head color primarily brown, yellow-orange on ventral portion. A blue streak runs from the snout to the suborbital. Blue or purplish spots are on opercular series. Each scale with dark brown streak near its margin, appearing as series of narrow transverse bands. The dorsal is fin brown, posteriormost is somewhat translucent. The caudal fin is tan to brown, outermost part translucent to yellowish. The anal and pelvic fins yellow to orange. The pectorals are transparent with suffusion of yellow with a small dark spot superiorly at its base.
Adults inhabit coral and rocky reefs (Ref. 9710). 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).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | 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).
Allen, G.R. and A.R. Emery, 1985. A review of the Pomacentrid fishes of the genus Stegastes from the Indo-Pacific, with descriptions of two new species. Indo-Pac. Fish. (3):31. (Ref. 510)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 21.6 - 27.1, mean 25.6 °C (based on 300 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.00926 - 0.04106), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .
Nutrients (Ref. 124155
): Calcium = 51.9 [27.8, 99.7] mg/100g ; Iron = 1.1 [0.6, 1.9] mg/100g ; Protein = 19.2 [18.0, 20.3] % ; Omega3 = 0.192 [0.108, 0.334] g/100g ; Selenium = 11.9 [5.7, 26.3] μg/100g ; VitaminA = 38.6 [9.4, 150.3] μg/100g ; Zinc = 1.21 [0.74, 1.94] mg/100g (wet weight);