Scientific Name
Gasterosteus aculeatus williamsoni

Common Name
Unarmored threespine stickleback

Biology
Males build, guard and aerate the nest where the eggs are deposited.

Classification

Classified By

Girard, 1854

Class

Ray-finned fishes (Actinopterygii)

Order

Sticklebacks and Seamoths (Gasterosteiformes)

Family

Sticklebacks and tubesnouts (Gasterosteidae)

Distribution

Region

North America

Distribution

North America: southern California, USA.

Range

Unknown

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

Marine; freshwater; brackish; benthopelagic

Trophic Level

3.26 s.e. 0.46 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

Unknown cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = No PD50 data many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Aquarium: public aquariums

Vulnerability

Low vulnerability (14 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