Scientific Name
Percopsis transmontana

Common Name
Sand roller

Biology
Occurs in quiet backwaters and pool margins of small to large rivers. Usually found near vegetation over sand.

Classification

Classified By

Eigenmann & Eigenmann, 1892

Class

Ray-finned fishes (Actinopterygii)

Order

Trout-perches, Pirate perches and Cavefish (Percopsiformes)

Family

Trout-perches (Percopsidae)

Distribution

Region

North America

Distribution

North America: Columbia River drainage in Idaho, Washington and Oregon, USA.

Range

44°N - 43°N

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; demersal

Trophic Level

3.3 s.e. 0.36 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

9.6 cm

Common Length

7.0 cm

Phylogenetic Diversity Index

PD50 = 1.0020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (24 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tmax = 6; Fec = 5,370)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated