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Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stevardiinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335); rafaelensis: The specific name refers to San Rafael Creek, the drainage system where the new species was collected.

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

Freshwater; benthopelagic. Tropical; 18°C - ? (Ref. 77138)

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

South America: San Rafael Creek and Apia River in the Risaralda River system, upper Cauca River in Colombia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.0 cm SL male/unsexed; (Ref. 77138)

Short description Identification keys | Morphology | Morphometrics

Vertebrae: 40 - 41. Differs from all other species of the genus by the number of cusps on the row of internal premaxilla teeth (3-5 vs. 5-7 except Hemibrycon surinamensis), the number of predorsal scales (10-12 vs.12-17, except Hemibrycon jelskii and Hemibrycon orcesi ), and by postcleithrum 1 much closer to postcleithrum 2 (vs. postcleithrum 1 and 2 clearly separated).

Inhabits clear water with stone and sand substrates (Ref. 77138).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Román-Valencia, C. and D.K. Arcila-Mesa, 2008. Hemibrycon rafaelense n. sp. (Characiformes, Characidae), a new species from the upper Cauca River, with keys to Colombian species. Anim. Biodivers. Conserv. 31(1):67-75. (Ref. 77138)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 10 October 2014

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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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=0.00955 (0.00443 - 0.02057), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

Hemibrycon rafaelensis Román-Valencia & Arcila-Mesa, 2008