|
Acipenser
oxyrinchus oxyrinchus
Mitchill, 1815
|
|
|
Family:
|
Acipenseridae
(Sturgeons), subfamily: Acipenserinae
|
picture (Acoxy_u1.jpg) by Moodie, G.E.E.
AquaMaps for Acipenser oxyrinchus oxyrinchus
Point map |
|
|
Order:
|
Acipenseriformes
(sturgeons and paddlefishes)
|
|
Class:
|
Actinopterygii (ray-finned fishes)
|
|
FishBase name:
|
Atlantic sturgeon |
|
Max. size:
|
403 cm TL (male/unsexed; Ref. 26938); 430 cm TL (female); max. published weight: 368 kg; max. reported age: 60 years |
|
Environment: |
demersal; anadromous (Ref. 51243); freshwater; brackish; marine; depth range ? – 46 m
|
|
Climate: |
subtropical; 56°N - 10°S, 102°w - 33°w |
|
Importance:
|
fisheries: commercial; aquarium: public aquariums; price category: not marketed/unknown |
|
Resilience: |
Very low, minimum population doubling time more than 14 years (K=0.03; tm=7-34; tmax=60; Fec=1.03 million) |
| Vulnerability: |
Very high vulnerability (84.08). (Ref. 59153)
|
Distribution:
Gazetteer
|
Western Atlantic: Hamilton River, Labrador, Newfoundland, Canada to northeastern Florida, USA. Occurs occasionally in Bermuda and French Guiana (Ref. 7251). Northern Gulf of Mexico (Ref. 26938). International trade restricted (CITES II, since 28.6.79).
|
|
Morphology:
|
Dorsal
spines
(total): 0 - 0;
Dorsal
soft rays
(total): 30 - 46;
Anal
spines: 0;
Anal
soft rays: 22 – 32. Elongate fish, pentagonal in cross section and shark-like fins (Ref. 26938). Double row of pre anal shields. Presence of a soft fontanelle. Bony shields are oval. Carina on dorsal shields do not have a conspicuous hook. Head and back bluish-black and lower surface whitish (Ref. 37032). Snout long, sharply V-shaped. 2 pairs of short, slender barbels in transverse line midway between end of snout and anterior edge of mouth (Ref. 4639). Viscera pale (Ref. 7251).
|
|
Biology: |
Inhabit shallow waters of continental shelf. Adults are highly migratory while at sea (Ref. 57533). Ascend coastal rivers to spawn. Eggs demersal, measuring 2.55 mm in diameter and hatching in 1 week at 17.8°C (Ref. 9980). Juveniles may remain in fresh or brackish water until 3-5 years of age or 76-91.5 cm long (Ref. 4639). Females take 8 to 30 years to reach sexual maturity and spawn only every 3-4 years. Exact time of spawning depends on temperature (Ref. 26938). Used smoked and fresh (Ref. 37032).
|
|
Red List Status: |
Near Threatened (NT) (Ref. 57073)
|
|
Dangerous:
|
harmless
|
|
Coordinator: |
|
|
Main Ref: |
Page, L.M. and B.M. Burr. 1991. (Ref. 5723)
|
|
Update |
Add
|
Get XML file | Point data in XML | Common names in XML | Photos in XML
|
|
|
|
More Languages...
