Teleostei (teleosts) >
Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Prionurinae
Etymology: Prionurus: Greek, prion, -onos = saw + Greek, oura = tail (Ref. 45335).
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 3 - 30 m (Ref. 5227), usually 3 - 25 m (Ref. 27115). Tropical; 19°N - 1°S, 120°W - 70°W
Eastern Central Pacific: Costa Rica to Colombia, including the Revillagigedo, Cocos and Galapagos islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 55763); common length : 25.0 cm TL male/unsexed; (Ref. 55763)
Inhabits shallow waters and forms big schools (Ref. 9267). Herbivorous, feeds in schools on algae attached to rocks or corals (Ref. 28023). Demersal species that generally inhabits rocky areas (Ref. 55763).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Krupp, F., 1995. Acanthuridae. Sangradores, cirujanos, navajones. p. 839-844. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9267)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 15.9 - 28.9, mean 24.4 °C (based on 10 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.7 ±0.31 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
Nutrients (Ref.
124155): Calcium = 32.8 [18.2, 54.1] mg/100g; Iron = 0.495 [0.265, 0.872] mg/100g; Protein = 18.5 [17.3, 19.7] %; Omega3 = 0.0952 [, ] g/100g; Selenium = 34.7 [18.6, 63.2] μg/100g; VitaminA = 36.9 [9.8, 122.1] μg/100g; Zinc = 1.06 [0.72, 1.55] mg/100g (wet weight);