Shortnose sturgeon (Acipenser brevirostrum) fish species and information / pictures of Shortnose sturgeon - Acipenser brevirostrum

Shortnose sturgeon (Acipenser brevirostrum) fish species information

Scientific Name
Acipenser brevirostrum

Common Name
Shortnose sturgeon

Biology
Inhabit river mouths, lakes, estuaries, and bays; occasionally enters the open sea. Maximum known age is 67 years for females and 30 years for males. Flesh of good quality; eggs are suitable for caviar (Ref. 3192).

Classification

Classified By

Lesueur, 1818

Class

Ray-finned fishes (Actinopterygii)

Order

Sturgeons and Paddlefishes (Acipenseriformes)

Family

Sturgeons (Acipenseridae)

Distribution

Region

North America

Distribution

North America: St. John River in Canada to St. Johns River in Florida, USA. International trade banned (CITES I since 1.7.75).

Range

49°N - 28°N, 82°W - 65°W

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

Marine; freshwater; brackish; demersal; anadromous (Ref. 51243)

Trophic Level

3.25 s.e. 0.39 Based on food items.

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

143 cm

Common Length

50.0 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

Fisheries: minor commercial; gamefish: yes; aquarium: public aquariums

Vulnerability

Very high vulnerability (84 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (K=0.04; tm=14-17; tmax=67; Fec=48,000)

Threat To Humans

Harmless

IUCN Red List Status

Vulnerable (VU) (A2ce;B1ab(iii))