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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Goodeidae (Splitfins) > Goodeinae
Etymology: francesae: Named for Frances H. Miller (Ref. 29410).
Eponymy: Frances Voorhees Hubbs ‘Fran’ Miller (1919–1987) was an American ichthyologist – which seems hardly surprising as both her parents and her younger brother were ichthyologists, as was her future husband. [...] (Ref. 128868), visit book page.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal. Tropical; 21°C - 27°C (Ref. 12468); 21°N - 20°N
North America: Teuchitlan River, Mexico.
Tamaño / Peso / Edad
Madurez: Lm ? range ? - ? cm
Max length : 5.0 cm TL macho / no sexado; (Ref. 6398); 5.0 cm TL (female)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 15 - 17; Radios blandos anales: 14 - 15; Vértebra: 30 - 35. Males with a less prominent notch in dorsal fin; no irregular black spots on sides of body; a gray cast superimposed on gold body and gray fins. Head wedged shaped; upturned lips; proportionately larger head and orbit. Tendency to fewer lateral scales, predorsal scales and vertebrae. Male with fins larger, especially dorsal and anal fins; greater prepelvic length, head and body depths; first 6 anal-fin rays small folding into fleshy dermal pocket supported by 7th ray; dorsal fin notched, first 4-5 rays separated slightly from the rest.
Body shape (shape guide): short and / or deep; Cross section: oval.
An experimental fish. Pinnate diatoms (largely benthic), filamentous algae indicate that this species grazes rocks and plant surfaces along or near the bottom (Ref. 29410). Migratory behaviour is undetermined (Ref. 126106).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Viviparous. Gestation lasts for about 55 to 60 days. Produces 10-15, rarely 20, young. Matures approximately at the fifth month.
Kingston, D.I., 1978. Skiffia francesae, a new species of goodeid fish from Western Mexico. Copeia 1978(3):503-508. (Ref. 29410)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: comercial; Acuario: Comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 2.3 ±0.23 se; based on food items.
Vulnerabilidad pesquera (Ref.
59153): Low vulnerability (10 of 100).
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