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> Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypostominae
Etymology: Baryancistrus: Greek, barys = heavy + Greek, agkistron = hook (Ref. 45335); beggini: Named for Chris Beggin, for his financial support of this research, ethical ornamental fish business practices, and influence on the professional development of the first author..

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

; Água doce pelágico(a,os,as). Tropical

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South America: Venezuela and Colombia.

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 8.1 cm SL macho/indeterminado; (Ref. 80502)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 2; Raios dorsais (total) : 7; Espinhos anais: 1; Raios anais : 3 - 4. This species is distinguished from all its congeners by having the last dorsal-fin ray adnate with adipose fin via a posterior membrane that extends beyond the preadipose plate up to half the length of the adipose-fin spine (vs. membrane separated from preadipose plate by up to two plates or stopping at preadipose plate); further differs from B. niveatus and B. longipinnis by having a naked abdomen (vs. partially plated), and from B. demantoides by having fewer premaxillary teeth (8-36 vs. 34-54, respectively) (Ref. 80502).

This species is collected from the interstices of granitic bedrock and boulders that constitute exposed portions of the Guyana Shield. Apparently feeds on periphyton and associated microfauna that are abundant on surfaces and undersides of rocks in this habitat (Ref. 80502).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador : Fisch-Muller, Sonia | Colaboradores

Lujan, N.K., M. Arce and J.W. Armbruster, 2009. A new black Baryancistrus with blue sheen from the Upper Orinoco (Siluriformes: Loricariidae). Copeia 2009(1):50-56. (Ref. 80502)

Status na Lista Vermelha da UICN (Ref. 130435)

Vulnerável, ver Livro Vermelho da UICN (VU) (B1ab(iii,v)); Date assessed: 28 July 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Harmless

Uso pelos humanos

FAO - Publication: search | FishSource |

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Estimates based on models

Índice de diversidade filogenética (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01514 (0.00712 - 0.03216), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

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

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Baryancistrus beggini Lujan, Arce & Armbruster, 2009