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> Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypostominae
Etymology: Baryancistrus: Greek, barys = heavy + Greek, agkistron = hook (Ref. 45335); demantoides: Name from the German diemant, meaning diamond, and the Greek suffix, oides, meaning to resemble. The specific name refers to a demantoid, a type of garnet that ranges in color from yellowish green to brownish green, in reference to the color of the fish..

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

; süßwasser demersal. Tropical

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South America: upper Rio Orinoco drainage in Venezuela.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 15.1 cm SL Männchen/unbestimmt; (Ref. 56038)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 2; Rückenflossenweichstrahlen (insgesamt) : 7. Distinguished from all other ancistrins by having the dorsal and adipose fins connected by an expanded posterior section of the dorsal-fin membrane, golden-yellow spots confined to the anterior portion of the body and greater than 30 teeth per jaw ramus (Ref. 56038).

Occurs exclusively among granite rocks in flowing water (Ref. 56038).

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

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Werneke, D.C., M.H. Sabaj, N.K. Lujan and J.W. Armbruster, 2005. Baryancistrus demantoides and Hemiancistrus subviridis, two new uniquely colored species of catfishes from Venezuela (Siluriformes: Loricariidae). Neotrop. Ichthyol. 3(4):533-542. (Ref. 56038)

IUCN Rote Liste Status (Ref. 130435)

Gefährdung zunehmend (NT) (B1b(iii)+2b(iii)); Date assessed: 07 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (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).

Widerstandsfähigkeit (Ref. 120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).

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

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Baryancistrus demantoides Werneke, Sabaj Pérez, Lujan & Armbruster, 2005