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> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Xiphophorus: Greek, xiphos = sword + Greek, pherein = to carry (Ref. 45335).
Eponymy: Nezahualcoyotl (1402–1472) was a philosopher king of the Texcocan people in Mexico. [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser benthopelagisch; pH range: 7.0 - ?. High altitude; 19°C - ? (Ref. 50643); 23°N - 21°N, 100°W - 98°W

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Central America: Rio Tamasi drainage in San Luis Potosi, Mexico.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 5.0 cm TL Männchen/unbestimmt; (Ref. 26130); 6.0 cm (female)

Inhabits fast flowing creeks in mountainous areas up to 1200 m elevation.

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

After an average gestation length of 24 days, female drops 20-40 young.

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Wischnath, L., 1993. Atlas of livebearers of the world. T.F.H. Publications, Inc., United States of America. 336 p. (Ref. 26130)

IUCN Rote Liste Status (Ref. 130435: Version 2024-1)

Daten mangelhaft (DD) ; Date assessed: 29 March 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00851 (0.00374 - 0.01935), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (tm=0.5-1.5; Fec=20-40; assuming multiple pregnancies per year).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Xiphophorus nezahualcoyotl Rauchenberger, Kallman & Morizot, 1990