Common names from other countries
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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Etymology: Amphiarius: The first part of name from Greek 'amphi' meaning on both sides or double, referring to the occurrence of the included species both in fresh and marine waters; the second part is from the frequently used ariid generic name Arius..
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino; salmastro demersale; distribuzione batimetrica 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 / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.5 cm TL maschio/sesso non determinato; (Ref. 108869); common length : 20.0 cm TL maschio/sesso non determinato; (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
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Traumatogenic (Ref. 58010)
Human uses
Pesca: scarso interesse commerciale
Informazioni ulteriori
Age/SizeAccrescimentoLength-weightLength-lengthLength-frequenciesMorfometriaMorfologiaLarveDinamica popolazioni larvaliReclutamentoAbbondanza
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaElectrophoresesEreditarietàMalattieElaborazioneMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Ref.
115969): 26.8 - 27.9, mean 27.5 (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
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).