Scientific Name
Cyprinodon atrorus

Common Name
Bolson pupfish

Biology
5.0 cm max TL (Ref. 2059). Not a seasonal killifish. Is difficult to maintain in aquarium (Ref. 27139).

Classification

Classified By

Miller, 1968

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Pupfishes (Cyprinodontidae)

Distribution

Region

Central America

Distribution

Central America: R?o Salado and Cuatro Ci?negas systems in Mexico.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

25 °C

Water Temperature To

35 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 7.5 - 8.0; dH range: 12 - 15 benthopelagic; non-migratory

Trophic Level

2.96 s.e. 0.33 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

3.4 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 to moderate vulnerability (26 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Lower Risk: least concern (LR/lc)