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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Goodeidae (Splitfins) > Goodeinae
Etymology: Xenotoca: Greek, xenos = strange + Greek, tokos, oy = birth (Ref. 45335).
Eponymy: Dr Gustav Eisen (1847–1940) was a Swedish-born American polymath with a particular interest in marine invertebrates and earthworms (a genus of the latter, Eisenia, being named after him). [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal; pH range: 6.0 - 8.0; dH range: 9 - 19. Temperate; 15°C - 32°C (Ref. 2060)
Central America: Mexico.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 6.0 cm TL mannelijk / geslacht onbekend; (Ref. 2060); 7.0 cm TL (female)
Migratory behaviour is undetermined (Ref. 126106).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Females can get young every 60 days.
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Bedreigd (EN) (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)); Date assessed: 14 March 2018
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; Aquarium: Commercieel
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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) |
2.0 ±0.1 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec=10). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
Unknown.
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