Klassifizierung / Names
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Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: argentosa: Named after Dione, the mother of Venus; argentosa meaning silvery (in reference to the sides and abdomen) (Ref. 79012).
More on author: Girard.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch. Subtropical
North America: Devils River and San Felipe Creek in Texas, USA.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 7.6 cm SL Männchen/unbestimmt; (Ref. 79012)
Dionda argentosa is genetically distinct but morphologically indistinguishable from Guadalupe roundnose minnow, D. nigrotaeniata (Ref. 86798).
Body shape (shape guide): elongated.
Adults inhabit rocky pools, sometimes runs, of headwaters, creeks, and small rivers. Found among filamentous algae (Ref. 86798). Migratory behaviour is undetermined (Ref. 126106).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00256 - 0.01076), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
2.9 ±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.). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low vulnerability (25 of 100). 🛈 |