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))