Venezuela country information

Common names: Bagre, Bagre guatero
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in Pedernales channel, mouth of the Pedernales channel - Cotorra Island, Guanipa river - Venado channel, Manamito channel and mouth of Bagre (Ref. 51849). Also Ref. 3265.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ve.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 pémécou, Bagre guatero, Gillbacker, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Ariidae (Sea catfishes) > Ariinae
Etymology: More on author: Bloch.

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

marino; acqua dolce; salmastro demersale. Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

South America: Caribbean and Atlantic draining rivers and estuaries from Colombia to Brazil.

Length at first maturity / Size / Peso / Age

Maturity: L_m 50.8, range 45 - 56.5 cm
Max length : 94.2 cm TL maschio/sesso non determinato; (Ref. 10652); 62.5 cm TL (female); common length : 30.0 cm TL maschio/sesso non determinato; (Ref. 3265); peso massimo pubblicato: 1.5 kg (Ref. 5217)

Adults occur in turbid estuaries, mangrove-lined lagoons and lower parts of rivers being very tolerant to changes in salinity. Found on shallow soft bottoms (Ref. 5217). Feed on a large variety of bottom-living and pelagic organisms including those found among the roots of mangroves. Reproduction occurs between September and December. A female lays 20-30 eggs, with a diameter of 10-12 mm. Males incubate the eggs in their mouth (Ref. 35381).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Females reach maturity at a younger age than males and grow faster. The male incubates 28-40 eggs in the mouth and 200-400 eggs that are fixed in a glutinous mass on its head. Incubation takes 10-12 days. After 50-60 days fully functional young (6-6.5 cm TL) are released.

Main reference Upload your references | Bibliografia | Coordinatore : Ferraris, Jr., Carl J. | Collaboratori

Chacon, J.O., M.I.M. Alves and M.S.C. de Mesquita, 1994. Alguns aspectos da reprodução do bagre branco, Selenapsis herzbergii (Bloch 1794), Pisces: Ostariophysi, Siluriformes, Ariidae. Bol. Tec. DNOCS. 47/52(1/2):43-78. (Ref. 10652)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 17 August 2011

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Traumatogenic (Ref. 58010)

Human uses

Pesca: scarso interesse commerciale

FAO(Publication : search) | FishSource |

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione

Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
Deposizione
Fecundity
Uova
Egg development

Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
Reclutamento
Abbondanza

Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Electrophoreses
Ereditarietà
Malattie
Elaborazione
Mass conversion

Collaboratori
Immagini
Stamps, Coins Misc.
Suoni
Ciguatera
Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
Vista

Strumenti

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

Estimates based on models

Preferred temperature (Ref. 115969): 23.4 - 27.9, mean 25.6 (based on 428 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00575 (0.00474 - 0.00698), b=3.13 (3.07 - 3.19), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.39 se; based on food items.

Resilienza (Ref. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tm=2-3; Fec=200).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (39 of 100).

Price category (Ref. 80766): Medium.

Sciades herzbergii (Bloch, 1794)