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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Goodeidae (Splitfins) > Goodeinae
Etymology: francesae: Named for Frances H. Miller (Ref. 29410).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal. Tropical; 21°C - 27°C (Ref. 12468); 21°N - 20°N
North America: Teuchitlan River, Mexico.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm TL mannelijk / geslacht onbekend; (Ref. 6398); 5.0 cm TL (female)
Dorsale zachte stralen (totaal): 15-17; Anale zachte stralen: 14 - 15; Wervels: 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.
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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Aquarium: Commercieel
Meer informatie
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
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).
Trofisch niveau (Ref.
69278): 2.3 ±0.23 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
