Actinopteri (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: Sri Lanka eastward thorough Indonesia to New Caledonia, north to southern Japan.
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. 125652)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 25.4 - 29.1, mean 28.6 °C (based on 2014 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02754 (0.01646 - 0.04607), b=2.95 (2.80 - 3.10), in cm total length, based on LWR estimates for species & Subfamily-BS (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;).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .
Nutrients (Ref. 124155
): Calcium = 97.2 [33.0, 224.5] mg/100g ; Iron = 0.836 [0.486, 1.741] mg/100g ; Protein = 18.5 [16.2, 20.7] % ; Omega3 = 0.125 [0.057, 0.254] g/100g ; Selenium = 27.9 [13.8, 63.9] μg/100g ; VitaminA = 56.2 [17.0, 186.4] μg/100g ; Zinc = 1.52 [0.88, 2.49] mg/100g (wet weight);