Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien; brak water demersaal. Tropical; 12°N - 0°S, 72°W - 48°W
Western Atlantic: Venezuela to mouth of the Amazon River, Brazil.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 100.0 cm TL mannelijk / geslacht onbekend; (Ref. 3265); common length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 3265); max. gepubliceerd gewicht: 15.0 kg (Ref. 5217)
Dorsale stekels (totaal) : 1. The head is flattened on top. The snout is short and large and transversally truncated. Mouth terminal, the lower jaw is the same length or slightly longer than the superior jaw. It has three pairs of barbels (1 pair maxillary barbels, 2 pairs of mandibular barbels) (Ref. 35381).
Body shape (shape guide): elongated.
Occurs in coastal waters and river estuaries. Found on shallow muddy bottoms (Ref. 5217). Reproduction seems to occur twice a year, in April and in October. The female lays 20-25 eggs measuring 12-15 mm. Mouth-brooding by the males lasts 10-12 days (Ref. 35381). Marketed fresh and salted (Ref. 5217).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Traumatogenic (Ref. 58010)
Gebruik door de mens
Visserij: van minder commercieel belang
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00245 - 0.00892), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.9 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): High vulnerability (60 of 100).
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Voedingsstoffen (Ref.
124155): Calcium = 76.8 [40.1, 164.5] mg/100g; Iron = 0.91 [0.56, 1.59] mg/100g; Protein = 16.8 [15.1, 18.6] %; Omega3 = 0.149 [0.084, 0.263] g/100g; Selenium = 63.2 [31.4, 136.4] μg/100g; VitaminA = 24.7 [9.5, 63.3] μg/100g; Zinc = 0.992 [0.662, 1.557] mg/100g (wet weight);