Pallid sturgeon (Scaphirhynchus albus) fish species and information / pictures of Pallid sturgeon - Scaphirhynchus albus

Pallid sturgeon (Scaphirhynchus albus) fish species information

Scientific Name
Scaphirhynchus albus

Common Name
Pallid sturgeon

Biology
Inhabit large, deep, turbid river channels, usually in strong current over firm sand or gravel (Ref. 10294, 58490). Feed on aquatic insect immatures, particularly caddisfly larvae, and small fish (Ref. 10294). Threatened due to over harvesting and habitat loss (Ref. 58490). No length type given but assumed to be in TL.

Classification

Classified By

Forbes & Richardson, 1905

Class

Ray-finned fishes (Actinopterygii)

Order

Sturgeons and Paddlefishes (Acipenseriformes)

Family

Sturgeons (Acipenseridae)

Distribution

Region

North America

Distribution

North America: nearly restricted to main channels of Missouri River and lower Mississippi River from Montana to Louisiana in USA. International trade restricted (CITES II, since 1.4.98).

Range

44°N - 30°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

demersal

Environment

Freshwater; demersal; potamodromous (Ref. 51243)

Trophic Level

3.88 s.e. 0.63 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

False

Physical Size and Genetics

Maximum Length

200 cm

Common Length

81.7 cm

Phylogenetic Diversity Index

PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

High to very high vulnerability (67 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (tm=5-15; Fec=170,000, tmax=41(based on 1 specimen only))

Threat To Humans

Harmless

IUCN Red List Status

Endangered (EN) (A4ce)