Klassifizierung / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Pterobrycon: Greek, pteryx = fin + Greek, bryko = to bite (Ref. 45335).
Issue
See Bussing (1998) for distribution, ecology and other comments on this species. For illustrations of courtship behavior see Weitzman (1975). See Weitzman & Menezes (1998) for relationships. See Burns et al. (1995) for evidence of insemination.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch; pH range: 6.0 - 7.0; dH range: ? - 15. Tropical; 23°C - 26°C (Ref. 2060)
Central America: Pacific drainages of southern Costa Rica, Jicote and Rincon rivers and the Esquinas River of Osa Peninsula.
Size / Gewicht / Alter
Maturity: Lm ?  range ? - ? cm
Max length : 3.9 cm SL Männchen/unbestimmt; (Ref. 34092)
Aquarium specimens reach 7.0 cm TL (Ref. 2060). Inhabits creeks of low to high current velocity. Collected in sites between elevations of 10 to 80 m, insectivorous (Ref. 36880).
Life cycle and mating behavior
Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven
Weitzman, S.H., 2003. Glandulocaudinae (Characins, tetras). p. 222-230. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38597)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00653 - 0.03348), b=2.96 (2.77 - 3.15), 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
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).