Scientific Name
Pseudanos trimaculatus

Common Name
Threespot headstander

Biology
In schools of 10-50 specimens in deeper water; feeds on plants (Ref. 13371).

Classification

Classified By

Kner, 1858

Class

Ray-finned fishes (Actinopterygii)

Order

Characins (Characiformes)

Family

Headstanders (Anostomidae)

Distribution

Region

South America

Distribution

South America: Amazon River basin (Ref. 36801). Reported from Argentina (Ref. 9086).

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

23 °C

Water Temperature To

27 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

Trophic Level

2 s.e. 0.00 Based on food items.

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

12.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5625 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 (15 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