Country Species Summary

Acipenser brevirostrum in USA (contiguous states)
Shortnose sturgeon

Acipenser brevirostrum Lesueur, 1818
Family:	Acipenseridae (Sturgeons) , subfamily: Acipenserinae	picture (Acbre_u0.jpg) by JJPhoto
Order:	Acipenseriformes (sturgeons and paddlefishes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Shortnose sturgeon
Max. size:	143 cm TL (male/unsexed; Ref. 6866); max. published weight: 23.0 kg (Ref. 6866); max. reported age: 67 years
Environment:	demersal; anadromous
Climate:	subtropical; 49°N - 32°N
Global Importance:	fisheries: minor commercial; aquarium: public aquariums
Resilience:	Very low, minimum population doubling time more than 14 years (K=0.04; tm=14-17; tmax=67; Fec=48,000)
Distribution:	North America: St. John River in Canada to St. Johns River in Florida, USA. International trade banned (CITES I since 1.7.75).
Diagnosis:	Dorsal spines (total): 0-0; Dorsal soft rays (total): 33-42; Anal spines: 0-0; Anal soft rays: 18-24. Snout short, bluntly V-shaped, not upturned at tip. Barbels short (Ref. 7251). Absence of fontanelle and post dorsal shields. Single row of pre anal shields, 6-11 (Ref. 4639). Dorsal shields 7-13, lateral shields 22-34 (Ref. 4639). Blackish viscera (Ref. 37032). Head and back dark, lower surface white (Ref. 37032).
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)
Threatened:	Vulnerable, see IUCN Red List (A2ce; B1ab(iii)) , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Page, L.M. and B.M. Burr. 1991. (Ref. 5723)
Update \| Add

USA (contiguous states) country information
Common names:	Shortnose sturgeon, Pinkster	Ref: Vecsei, P. and D. Peterson, 2000
Status:	native	Ref:
Salinity:	freshwater, brackish, marine
Abundance:	occasional (usually not seen)	Ref: Page, L.M. and B.M. Burr, 1991
Regulations:	protected	Ref:
Uses:	no uses
Comments:	Found possibly before Delaware and Potomac rivers, also recorded from Virginia (Ref. 4639). Dredging of rivers (e.g. Hudson) greatly increases siltation thus reducing food availability during the onset of exogenous feeding of the larvae. Dams block access to spawning sites of many rivers. Listed under the U.S. Endangered Species Act; the Hudson R. stock has increased in number and now considered stable but as the stock recovers, poaching may become a problem. However, the Connecticut R. stock has not increased markedly and the southern populations continue to be threatened with extinction (Ref. 38308). Also Ref. 11975. Status of threat: endangered; status declined since 1989. Criteria: 1,2 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
States/Provinces:	Florida (native) South Carolina (native) Virginia (native)
States/Provinces Complete?:	No
Country Information:	www.cia.gov/cia/publications/factbook/geos/us.html
National Fisheries Authority:	www.nmfs.gov
Occurrences:	Occurrences Point map
Main Ref:	Page, L.M. and B.M. Burr, 1991
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Modified: Torres, Armi G.

Entered: Froese, Rainer

CGNET - US

Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07

	Ref.:		Glossary
		(e.g. 9948)		(e.g. cephalopods)
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