Scientific Name
Xiphophorus nezahualcoyotl

Common Name
Mountain swordatail

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

Classification

Classified By

Rauchenberger, Kallman & Morizot, 1990

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Poeciliids (Poeciliidae)

Distribution

Region

Central America

Distribution

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

Range

23°N - 21°N, 100°W - 98°W

Environment

Climate

High altitude

Water Temperature From

19 °C

Water Temperature To

26 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 7.0 - ? benthopelagic

Trophic Level

3.11 s.e. 0.40 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

5.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (14 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=0.5-1.5; Fec=20-40; assuming multiple pregnancies per year)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated