Actinopterygii (ray-finned fishes) > Tetraodontiformes
(Puffers and filefishes) > Monacanthidae
Etymology: Acreichthys: Greek, akre, -as = terminal, topmost + Greek, ichthys = fish (Ref. 45335). More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; non-migratory; depth range 2 - 15 m (Ref. 48637). Tropical; 30°N - 27°S, 55°E - 174°W
Indo-West Pacific: East Africa to Fiji, north to the Ryukyu Islands, south to New South Wales (Australia). Recently recorded from Tonga (Ref. 53797).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm SL male/unsexed; (Ref. 108462)
Adults inhabit reef, weed, and rubble areas on shallow coral reefs (Ref. 43248, 48637), commonly found in seagrasses (Ref. 58881). Solitary (Ref. 90102). Major food items include amphipods, polychaetes and molluscs (Ref. 58881). Oviparous (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 25.4 - 29.1, mean 28.6 (based on 2014 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02884 (0.01748 - 0.04759), b=2.95 (2.80 - 3.10), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.39 se; Based on food items.
Generation time: 1.3 ( 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=0.86;).
Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .