Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien; zoet water; brak water benthopelagisch. Tropical; 9°N - 13°S, 59°W - 34°W
South America: Atlantic coastal rivers from Guyana to northeastern Brazil.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 3265); common length : 30.0 cm TL mannelijk / geslacht onbekend; (Ref. 3265); max. gepubliceerd gewicht: 33.30 g (Ref. 118626)
Dorsale stekels (totaal) : 1. Three pair of barbels on rostral region, two pairs on lower jaw, one pair on posterior end of maxilla; end of maxilla barbel reaching pectoral fin insertion; large saddle-shaped bony plate with rugosa surface in front of dorsal fin, anterior margin of this plate waved but no deep medial incision; body yellow or gray-yellow dorsally, white ventrally (Ref. 13608).
Found in turbid waters over muddy bottoms in shallow coastal areas, also around estuaries (Ref. 3265), and coastal rivers (Ref. 39852). Food items include bottom-living invertebrates. Marketed fresh. Exported frozen (Ref. 5217). Reproduction period is probably between September and November. Egg diameter is 9-11 mm. Males practice mouth brooding of the eggs. (Ref. 35381).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | 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)
Gevaar voor de mens
Traumatogenic (Ref. 58010)
Gebruik door de mens
Visserij: van minder commercieel belang
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 26.9 - 28.2, mean 27.5 °C (based on 66 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00404 - 0.00942), b=3.11 (2.98 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.5 ±0.37 se; based on food items.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Prior r = 0.58, 95% CL = 0.38 - 0.87, Based on 1 data-limited stock assessment.
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
Nutrients (Ref.
124155): Calcium = 85.4 [43.1, 173.7] mg/100g; Iron = 0.769 [0.461, 1.295] mg/100g; Protein = 16.2 [14.6, 18.1] %; Omega3 = 0.166 [0.089, 0.317] g/100g; Selenium = 67.3 [33.7, 136.1] μg/100g; VitaminA = 29.3 [12.1, 71.0] μg/100g; Zinc = 1.44 [0.97, 2.25] mg/100g (wet weight);
