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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Diapominae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335); cinarucoense: Named for the Cinaruco River of southern Apure State, where the type series was collected.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
South America: Cinaruco River of the Orinoco River basin in Venezuela and Essequibo River basin in Guyana; probably extends to similar rivers throughout the Orinoco Basin in Venezuela and Colombia.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 3.7 cm SL hane/ej könsbestämd; (Ref. 77139)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Ryggkotor: 35. Distinguished from all other species of the genus by having upper jaw extending beyond lower, maxilla short with one or two teeth, cartilaginous rhinosphenoid extending to anterior part of prevomer, pelvic bone with cartilage along anterior edge, and lateral line pores in a straight line. Can be separated from the most similar Venezuelan species Bryconamericus subtilisform by possessing fewer pored lateral line scales 35-37 (vs. 38-39), more scales below lateral line to origin of pelvic fin 4-5 (vs. 2-3), more branched anal-fin rays 20-21 (vs. 17-18), and pelvic-fin rays usually ii,6 (vs. I,7).
Body shape (shape guide): elongated.
Found along shore over sandy substrates in mainstreams of rivers, as well as tributaries (Ref. 77139).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Román-Valencia, C., D.C. Taphorn B. and R.I. Ruiz-C., 2008. Two new Bryconamericus: B. cinarucoense n. sp. And B. singularis n. sp. (Characiformes, characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species. Anim. Biodivers. Conserv. 31(1):15-27. (Ref. 77139)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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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=0.00851 (0.00355 - 0.02043), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.8 ±0.3 se; based on size and trophs of closest relatives
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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