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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Hemibryconinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335); paez: The specific epithet refers to the native Latin Americans known as the Paeces or
Guambianos who occupy the type locality of this new species. A substantive noun in apposition.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical; ? - 21°C (Ref. 83529)
South America: drainages of the Río La Plata, upper Río Magdalena Basin in Colombia.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 9.4 cm SL hane/ej könsbestämd; (Ref. 83529)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 9 - 10; Ryggkotor: 40 - 41. Can be diagnosed in having the following characters: lateral line scales 39-42 (vs. 43-54; except 34-35 in Hemibrycon orcesi); scales between lateral line and anal-fin origin 6-7 (vs. 4-5; except 7-9 in Hemibrycon colombianus); and scales between lateral line and dorsal-fin origin 6-7 (vs. 8; except 7-10 in Hemibrycon colombianus). Most specimens of Hemibrycon paez differ from those of Hemibrycon boquiae, Hemibrycon yacopiae and Hemibrycon raqueliae by the possession of 19-23 anal-fin rays (vs. 23-29); readily distinguished from its congeners by having the mesopterygoid barely touching the metapterygoid (vs. overlapping the metapterygoid, except in Hemibrycon jabonero, Hemibrycon rafaelense and Hemibrycon guppyi) (Ref. 83529).
Body shape (shape guide): elongated.
Inhabits creeks with surface temperature 19.2-20.5°C, air temperature 18.8-22.8°C, dissolved oxygen 7.6-8.0mg/l, saturation 98-100%, clear water, width 5-6m, and substrate composed of stone, sand and decaying organic material (Ref. 83529).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Román-Valencia, C. and D.K. Arcila-Mesa, 2010. Five new species of Hemibrycon (Characiformes: Characidae) from the Río Magdalena basin, Colombia. Revista de Biología Tropical (International Journal of Tropical Biology and Conservation) 58 (1):339-356. (Ref. 83529)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00322 - 0.01872), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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