Classificazione / Nomi
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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Hemibryconinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335); fasciatus: From the Latin fascia, alluding to the dark lateral stripe or band that distinguishes this species. A
noun in apposition.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
South America: Nare River drainage, Magdalena River basin in Colombia.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 8.3 cm SL maschio/sesso non determinato; (Ref. 95113)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Vertebre: 38 - 40. Distinguished from all congeners by having the following combination of characters: a circular humeral spot that does not pass ventrally below the lateral-line canal and has a only a diffuse, inconspicuous vertical extension; short scales with a rounded posterior margin at the base of the caudal-fin; melanophores present on the posterior margins of the scales all along the sides of body; a dark lateral stripe, formed by deep pigment that is continuous with the caudal peduncle spot; wide, concave pelvic bone; middle part of the dorsal margin of the orbito-sphenoid bone concave, and not in contact with the frontal; ventral tip of extrascapular bifurcate; first postcleithrum not contacting cleithrum; the portion of maxilla with teeth does not reach the dorsal border of the dentary; all maxillary teeth tricuspid; caudal peduncle spot continuous with the dark lateral stripe; and humeral spot extending on to the posterior part of the opercle (Ref. 95113).
Body shape (shape guide): fusiform / normal.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Román-Valencia, C., R.I. Ruiz-C., D.C. Taphorn, N.J. Mancera-Rodriguez and C. García-A., 2013. Three new species of Hemibrycon (Characiformes: Characidae) from the Magdalena River Basin, Colombia. Rev. Biol. Trop. 61(3):1365-1387. (Ref. 95113)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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