Brazil country information

Common names: Ariaçu, Ariassu, Bagre ariassu
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 3265.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Cervigón, F., R. Cipriani, W. Fischer, L. Garibaldi, M. Hendrickx, A.J. Lemus, R. Márquez, J.M. Poutiers, G. Robaina and B. Rodriguez, 1992
National Database:

Common names from other countries

Mâchoiron jaune, Bagre amarillo, Geelbagger, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Ariidae (Sea catfishes) > Ariinae
Etymology:

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien; brak water demersaal; diepte 15 - 20 m (Ref. 86589). Tropical; 9°N - 7°S, 60°W - 34°W

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Western Atlantic: Coastal rivers from Guyana to northern Brazil.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 52.5, range 46 - 59 cm
Max length : 190 cm TL mannelijk / geslacht onbekend; (Ref. 86589); common length : 90.0 cm TL mannelijk / geslacht onbekend; (Ref. 86589); max. gepubliceerd gewicht: 50.0 kg (Ref. 5217); max. gerapporteerde leeftijd: 4 Jaren (Ref. 51994)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 1; Dorsale zachte stralen (totaal) : 7; Anale zachte stralen: 18 - 20; Wervels: 49 - 51. This species is distinguished by the following characters: in life, yellowish body; swim bladder divided into 3 chambers; shield-shaped nuchal plate, usually larger than the supraoccipital process; head shield exposed and granulated in orbital and postorbital regions; first 2 gill with no mesial gill rakers. Sciades parkeri can further be distinguished from sympatric congeners by the following: fleshy furrow connecting posterior nares absent (vs. present in S. couma, S. herzbergii and S. passany); moderately sized posterior chamber of swim bladder (vs. small in S. proops; absent in S. couma, S. herzbergii, S. passany); nuchal plate with no anterior notch (vs. anterior notched in S. proops, sometimes notched in S. herzbergii); palatal patches forming a U-shaped band (vs. transverse in S. passany, lateral edge on accessory patches not emarginated or shallowly notched; lateral edge with an angled and pronounced notch in S. proops) (Ref. 86589).

Mainly found in turbid waters over muddy bottoms in coastal areas, estuaries and lower parts of rivers. Sexually mature after around two years of age. Upon hatching, the alevins are relatively large, approximately 6.0-6.5 cm (Ref. 35381). Marketed fresh and salted (Ref. 5217). Fish exported to Canada, USA, England, and Holland (Rayman Bedessee, pers. comm.).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Distinct pairing. May employ mouth booding as parenting strategy (Ref. 205).

Hoofdreferentie Upload your references | Referenties | Coördinator : Ferraris, Jr., Carl J. | Medewerkers

Betancur-R., R.: Marceniuk, A.P. and P. Béarez, 2008. Taxonomic status and redescription of the gillbacker sea catfish (Siluriformes: Ariidae: Sciades parkeri). Copeia 2008(4):827-834. (Ref. 86589)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Kwetsbaar, zie IUCN Rode Lijst (VU) (A2bd); Date assessed: 17 August 2011

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Traumatogenic (Ref. 58010)

Gebruik door de mens

Visserij: van minder commercieel belang

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Estimates based on models

Preferred temperature (Ref. 115969): 27.3 - 28.3, mean 27.7 (based on 174 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00871 (0.00500 - 0.01517), b=3.10 (2.95 - 3.25), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisch niveau (Ref. 69278): 4.1 ±0.6 se; based on diet studies.

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (K=0.46; tm=2; tmax=4).

Prior r = 0.76, 95% CL = 0.50 - 1.13, Based on 1 data-limited stock assessment.

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Prijsklasse (Ref. 80766): Medium.

Sciades parkeri (Traill, 1832)