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Ray-finned fishes

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Live bearers, Killifishes and Rivulines

African rivulines

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Velifers, Tube-eyes and Ribbonfishes

Lobe-finned fishes

Setting up your tank

DIY Fish Tank Stand

250L community aquarium

Big Bend gambusia (Gambusia gaigei) fish species and information / pictures of Big Bend gambusia - Gambusia gaigei

Big Bend gambusia (Gambusia gaigei) fish species information

Scientific Name
Gambusia gaigei

Common Name
Big Bend gambusia

Biology
Inhabits vegetated, spring-fed sloughs and ponds (Ref. 5723).

Classification

Classified By

Hubbs, 1929

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Poeciliids (Poeciliidae)

Distribution

Region

North America

Distribution

North America: formerly found in Boquillas and Graham Ranch springs, Brewster County in Texas; now restricted to an artificial spring-fed pond in Big Bend National Park in Texas, USA.

Range

30°N - 28°N

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic; non-migratory

Trophic Level

3.17 s.e. 0.38 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

5.4 cm

Common Length

2.3 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 (17 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Vulnerable (VU) (D1+2)