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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
البيئة
; المياه العذبة القاع. Tropical; 21°C - 27°C (Ref. 12468); 21°N - 20°N
North America: Teuchitlan River, Mexico.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm TL ذكر/ مختلط الجنس; (Ref. 6398); 5.0 cm TL (female)
الأشعة الظهرية الناعمة (المجموع) : 15 - 17; أشعه شرجية لينه: 14 - 15; فقرات: 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).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
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)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
مصائد: تجاري; حوض مائي: تجاري
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (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).
مستوى غذائي (Ref.
69278): 2.3 ±0.23 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
