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Teleostei (teleosts) > Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypostominae
Etymology: Hemiancistrus: Greek, hemi = the half + Greek, agkistron = hook (Ref. 45335).

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

Freshwater; demersal. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: rio Orinoco and rio Casiquiare drainages in Venezuela.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 15.0 cm SL male/unsexed; (Ref. 56038)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 7. Distinguished from all other ancistrins by coloration, lacking a connection between the dorsal and adipose fins and having less than 30 teeth per jaw ramus (Ref. 56038).

Facultative air-breathing in the genus (Ref. 126274); Found most frequently in cracks and interstitial spaces of granitic rocks in flowing water (Ref. 56038).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Fisch-Muller, Sonia | Collaborators

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 Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 29 July 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
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Anatomy
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Brains
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Physiology
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Visual pigment(s)
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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=0.01514 (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).

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

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

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Hemiancistrus subviridis Werneke, Sabaj Pérez, Lujan & Armbruster, 2005