Issue
Boeseman (1972) considered RMNH 3038 as the holotype of A. phrygiatus.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal; depth range 1 - 20 m (Ref. 5217). Tropical; 12°N - 1°S, 72°W - 48°W
Western Atlantic: Venezuela to mouth of the Amazon River, Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.5 cm TL male/unsexed; (Ref. 108869); common length : 20.0 cm TL male/unsexed; (Ref. 3265)
Occurs in brackish estuaries with very low salinities, nearly entering freshwater (Ref. 5217). Found on shallow muddy bottoms (Ref. 5217). The female lays her eggs in a gelatinous mass on a sandy depression. Mouth brooding males guard the eggs until hatching (Ref. 35381). Marketed fresh.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Taylor, W.R. and N.A. Menezes, 1978. Ariidae. In W. Fischer (ed.) FAO species identification sheets for fishery purposes. West Atlantic (Fishing Area 31). volume 1. [pag. var.]. FAO, Rome. (Ref. 3265)
IUCN Red List Status (Ref. 130435)
Threat to humans
Traumatogenic (Ref. 58010)
Human uses
Fisheries: minor commercial
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 26.8 - 27.9, mean 27.5 °C (based on 144 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00431 - 0.01163), b=3.18 (3.03 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).
Nutrients (Ref.
124155): Calcium = 155 [84, 323] mg/100g; Iron = 1.06 [0.68, 1.74] mg/100g; Protein = 17 [15, 19] %; Omega3 = 0.171 [0.096, 0.297] g/100g; Selenium = 43.4 [23.5, 90.3] μg/100g; VitaminA = 24.7 [11.5, 53.8] μg/100g; Zinc = 1.4 [1.0, 2.1] mg/100g (wet weight);