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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Brachyrhaphis: Greek, brachys, eia = short + Greek, raphis = needle (Ref. 45335); roswithae: Named in honor of Roswitha Etzel, Cuxhaven (Ref. 42972).
Eponymy: Roswitha Erasmy née Etzel of Cuxhaven is, we believe, the daughter of the junior author; the late Dr Vollrad Max Friedrich Etzel (1944–2012) (q.v.). (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch; pH range: 6.8 - 9.2; standvastig. Tropical; 20°C - 24°C (Ref. 42972)
Central America: Panama.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm TL mannelijk / geslacht onbekend; (Ref. 50894)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 9; Wervels: 27 - 29. Pronounced dark brown reticulum along the body sides, often with a crescent tail pattern (Ref. 42972).
Inhabits small rivers; adults found in schools (Ref. 42972).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Meyer, M.K. and V. Etzel, 1998. Notes on the genus Brachyrhaphis Regan 1913, with the description of a new species from Panama. Senckenb. Biol. 77(2):155-160. (Ref. 42972)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00374 - 0.01935), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).