Pygmy swordtail (Xiphophorus pygmaeus) fish species and information / pictures of Pygmy swordtail - Xiphophorus pygmaeus

Pygmy swordtail (Xiphophorus pygmaeus) fish species information

Scientific Name
Xiphophorus pygmaeus

Common Name
Pygmy swordtail

Biology
Unknown

Classification

Classified By
Hubbs & Gordon, 1943
Class
Ray-finned fishes (Actinopterygii)
Order
Live bearers, Killifishes and Rivulines (Cyprinodontiformes)
Family
Poeciliids (Poeciliidae)

Distribution

Region
Central America
Distribution
Central America: P?nuco River system, northeastern Mexico.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
24 °C
Water Temperature To
28 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; ; pH range: 7.2 - 7.8; dH range: 5 - 18 benthopelagic; non-migratory
Trophic Level
3.06 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
True

Physical Size and Genetics

Maximum Length
4.0 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
Aquarium: commercial
Vulnerability
Low vulnerability (12 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated