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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335).
Eponymy: Dr Samuel Frederick Hildebrand (1883–1949) was born of immigrant parents who never learned to speak English and was brought up as a farm boy in Indiana. [...] (Ref. 128868), visit book page.
More on author: Schultz.
Issue
See Harold & Vari (1994:20) for detailed redescription.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: Maracaibo Lake basin and Gulf of Venezuela.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 6.3 cm SL mannelijk / geslacht onbekend; (Ref. 28667)
Found in well oxygenated, fast flowing waters (Ref. 26543). Not encountered above an elevation of 1,000 m (Ref. 26543). Omnivore, feeding on benthic invertebrates and small seeds (Ref. 26543).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Harold, A.S. and R.P. Vari, 1994. Systematics of the Trans-Andean species of Creagrutus (Ostariophysi: Characiformers: Characidae). Smith. Contrib. Zool. (551):31 p. (Ref. 28667)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [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).
Trofisch niveau (Ref.
69278): 2.7 ±0.25 se; based on food items.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).