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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Pterobrycon: Greek, pteryx = fin + Greek, bryko = to bite (Ref. 45335).
Eponymy: Myrna Isabel Bussing née López Sanchez (d: 1937) is the widow of William Busing (q. [...] (Ref. 128868), visit book page.
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
Ekologi
; sötvatten bentopelagisk; 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 / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.9 cm SL hane/ej könsbestämd; (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
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
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 Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.01413 (0.00635 - 0.03140), b=2.99 (2.80 - 3.18), 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
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).