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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconacidnus: Greek, ebrykon, brykomai = to bite, to gnaw + Greek, akidnos, -e, -on = weak, small (Ref. 45335).
Eponymy: Marion Lee Ellis née Durbin (1887–1972) was an American ichthyologist, entomologist, limnologist and environmental toxicologist. [...] (Ref. 128868), visit book page.
Issue
See Géry, 1972:62 for detailed description. Possibly synonym of Microgenys weyrauchi Fowler, 1945, according to Géry, 1977:398. Common name according to Ortega & Vari, 1986:7.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce pelágico(a,os,as). Tropical
South America: Upper Amazon River basin.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 3.8 cm SL macho/indeterminado; (Ref. 38376)
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2024-1)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.6250 [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).
Nível Trófico (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).