Environment: milieu / climate zone / depth range / distribution range
; marino associati a barriera corallina; non migratori; distribuzione batimetrica 1 - 35 m (Ref. 90102). Tropical; 30°N - 24°S, 114°E - 171°E
Indo-Pacific: East Africa south to Maputo, Mozambique (Ref. 4421) and east to Samoa, north to Ryukyu Islands, south to the southern Great Barrier Reef, New Caledonia, and Tonga. Replaced by Oxymonacanthus halli in the Red Sea.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL maschio/sesso non determinato; (Ref. 9710)
Spine dorsali (totale): 2; Raggi dorsali molli (totale): 31-35; Spine anali 0; Raggi anali molli: 29 - 32. Ventral rudiment absent; bristles on caudal peduncle of males longer than others on body (Ref. 37816).
Occurs in clear lagoon and seaward reefs from 0.5 to at least 30 m. Found in pairs or small groups and nests near bases of dead corals, often on clumps of algae. Monogamous (Ref. 52884, 48637). Feeds exclusively on Acropora polyps. Feeding takes place throughout the day becoming less towards the evening (Ref. 46144).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Aggression is used commonly in courtship. Spawning commences when after swimming together in different tufts, the female concentrates on just one and begins to thrust repeatedly and pause. The male follows suit nuzzling the female. The female then drops into the algae and spawns, while the male releases the sperm beside her. The pair then swims back to their territory (Ref. 46144). Monogamous mating is observed as both facultative and social (Ref. 52884).
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Pesca: di nessun interesse; Acquario: Commerciale
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaFrequenze allelicheEreditarietàMalattieElaborazioneNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 25 - 29.3, mean 28.4 °C (based on 2439 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02138 (0.01034 - 0.04421), b=2.92 (2.74 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.6 se; based on diet studies.
Resilienza (Ref. 120179
): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Fec = 200).
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .
Nutrients (Ref. 124155
): Calcium = 106 [36, 245] mg/100g ; Iron = 0.807 [0.471, 1.700] mg/100g ; Protein = 18.5 [16.2, 20.7] % ; Omega3 = 0.133 [0.061, 0.274] g/100g ; Selenium = 26.3 [12.6, 61.6] μg/100g ; VitaminA = 77.8 [23.5, 259.6] μg/100g ; Zinc = 1.52 [0.87, 2.49] mg/100g (wet weight);