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

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

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

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

seewasser; brackwasser demersal; tiefenbereich 15 - 20 m (Ref. 86589). Tropical; 9°N - 7°S, 60°W - 34°W

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Western Atlantic: Coastal rivers from Guyana to northern Brazil.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 52.5, range 46 - 59 cm
Max length : 190 cm TL Männchen/unbestimmt; (Ref. 86589); common length : 90.0 cm TL Männchen/unbestimmt; (Ref. 86589); max. veröff. Gewicht: 50.0 kg (Ref. 5217); max. veröff. Alter: 4 Jahre (Ref. 51994)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 1; Rückenflossenweichstrahlen (insgesamt) : 7; Afterflossenweichstrahlen: 18 - 20; Wirbelzahl: 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.).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

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

Hauptreferenz Upload your references | Referenzen | Koordinator : Ferraris, Jr., Carl J. | Partner

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)

IUCN Rote Liste Status (Ref. 130435)

gefährdet, siehe IUCN Red List (VU) (A2bd); Date assessed: 17 August 2011

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Traumatogenic (Ref. 58010)

Nutzung durch Menschen

Fischereien: weniger kommerziell

FAO(Publication : search) | FishSource | Sea Around Us

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Trophic ecology
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Ecology
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Estimates based on models

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

Phylogenetic diversity index (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).

Trophic level (Ref. 69278): 4.1 ±0.6 se; based on diet studies.

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (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).

Preiskategorie (Ref. 80766): Medium.

Sciades parkeri (Traill, 1832)