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> Characiformes (Characins) > Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335).

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

; sötvatten bentopelagisk; djupintervall 0 - 1 m (Ref. 55781). Subtropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

South America: Rio Uruguay basin in Argentina.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.0 cm SL hane/ej könsbestämd; (Ref. 128951)

Short description Morfologi | Morfometri

Differs from other species of the genus by the following combination of characters: 17-21 branched anal fin rays, predorsal length (52.5-55.4% SL), preventral length (47.8-51.0% SL), preanal length (63.0-68.8% SL), caudal peduncle length (12.3-14.3% SL) and eye diameter (33.1-37.0% HL). Further differs by having seven to ten dentary teeth decreasing in size gradually, inner premaxillary teeth wider distally; one vertically elongated black humeral spot, separated from a second posterior one by 3 or 4 scales; narrow lateral band becoming wider below middle of dorsal fin base (Ref. 55781).

Occurs in rapids and small falls with clear flowing water, pools and some areas with slow current (Ref. 55781). The depth of the streams ranges from 0.40 to 1.3 m and the bottom is composed of sand and mostly stones (Ref. 55781).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Almirón, A.E., M. Azpelicueta and J.R. Casciotta, 2004. A new species of Bryconamericus from the arroyo Shangay, rio Uruguay basin, Argentina (Teleostei: Characiformes: Characidae). Zool. Abh. Staat. Mus. Tierk. Dresden 54:3-10. (Ref. 55781)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B2ab(iii)); Date assessed: 19 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll

Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development

Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
Rekrytering
Abundans
BRUVS

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Stamps, Coins Misc.
Ljud
Ciguatera
Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 2.6 ±0.3 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Bryconamericus ytu Almirón, Azpelicueta & Casciotta, 2004