Teleostei (teleosts) > Perciformes/Serranoidei
(Groupers) > Anthiadidae
(Fairy basslets or Streamer basses)
Etymology: Pseudanthias: Greek, pseudes = false + Greek, anthias = a fish, Sparus aurata (Ref. 45335).
More on author: Peters.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 0 - 55 m (Ref. 26165), usually 5 - 35 m (Ref. 27115). Tropical; 22°C - 28°C (Ref. 27115); 35°N - 36°S, 24°E - 169°W
Indo-West Pacific: Red Sea and Natal, South Africa to Niue (Ref. 37816), north to Japan, south to Australia. Recorded from Europa Island (MNHN 1992-0508).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 9710); 7.0 cm TL (female)
Adults are found above coral outcrops or patch reefs of clear lagoons, channels, or outer reef slopes. Form large aggregations. Feed on zooplankton (Ref. 6113). A protogynous hermaphrodite (Ref. 55367). Males are territorial and haremic (Ref. 9710). Color patterns and size of sexual transition very slightly from one locality to the next. Total length for females from Ref. 9137.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pelagic spawner. A monandric species (Ref. 55367). Females are induced to change sex by removal of males from social groups (Ref. 38802). Sex-reversal is completed in 2-4 weeks after male removal in the area, or 170-280 days in an all female group (Ref. 34185, 34249, 34250). Length at sex change = 5.0 cm TL (Ref. 55367). Also Ref. 103751.
Successful males spawn nightly with successive females (Ref. 37816).
Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
IUCN Red List Status (Ref. 126983)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 24.3 - 28.9, mean 27.6 °C (based on 1000 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.00980 - 0.03083), b=2.96 (2.81 - 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.
Generation time: 1.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K=0.6).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (23 of 100).
Nutrients (Ref. 124155
): Calcium = 83.1 [47.1, 158.8] mg/100g ; Iron = 0.796 [0.436, 1.349] mg/100g ; Protein = 18 [16, 20] % ; Omega3 = 0.167 [0.104, 0.269] g/100g ; Selenium = 26.4 [15.1, 50.7] μg/100g ; VitaminA = 207 [72, 672] μg/100g ; Zinc = 1.48 [0.99, 2.13] mg/100g (wet weight);