Acipenser fulvescens, Lake sturgeon : fisheries, aquaculture, gamefish, aquarium

Acipenser fulvescens Rafinesque, 1817

Lake sturgeon
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Acipenser fulvescens
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335);  fulvescens: From the words Acipenser, meaning sturgeon and fulvescens, yellowish (Ref. 10294).  More on author: Rafinesque.

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce; saumâtre démersal; potamodrome (Ref. 51243); profondeur 5 - 9 m (Ref. 117245).   Temperate; 60°N - 30°N, 100°W - 71°W

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

North America: St. Lawrence-Great Lakes, Hudson Bay, and Mississippi River basins. CMS Appendix II).

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 97.0, range 90 - 120 cm
Max length : 274 cm TL mâle / non sexé; (Ref. 5723); common length : 97.5 cm TL mâle / non sexé; (Ref. 12193); poids max. publié: 125.0 kg (Ref. 3672); âge max. reporté: 152 années (Ref. 72475)

Description synthétique Morphologie | Morphométrie

Single row of preanal shields. Soft area on the top of the head absent and black viscera. Large blotches present on anterior half of upper surface of snout and on back. Lower surface whitish (Ref. 37032). Anal fin origin behind dorsal fin origin; scutes on back and along side same color as skin (Ref. 86798).

Biologie     Glossaire (ex. epibenthic)

Inhabits bottom of lakes and large rivers (Ref. 10294), usually in 5-9 m depth, over mud, sand, and gravel. Occasionally enters brackish water. A specimen caught in 1952 was reputed to have been 152 years old (Ref. 6866). Search for food, with the aid of the sensory ability of the barbels, by constantly moving close to the substrate. Omnivorous, virtually anything edible that enters the mouth is sucked up and consumed. The food is worked or pulled in the mouth, often partly ejected and sucked in again (Ref. 1998). Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542). Smoked and in 1951, Canada, 2,000 lbs. of caviar were made from the eggs (Ref. 37032). Threatened due to over harvesting, habitat loss and pollution (Ref. 58490).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

Statut dans la liste rouge de l'IUCN (Ref. 123251)

  Préoccupation mineure (LC) ; Date assessed: 30 April 2004

CITES (Ref. 118484)


Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: commercial; Aquaculture: expérimental; pêche sportive: oui; Aquarium: Aquariums publics
FAO(pêcheries: Résumé espèce; publication : search) | FishSource |

Plus d'informations

Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Rassemblement de ponte
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Fréquences alléliques
Héritabilité
Pathologies
Traitement
Mass conversion
Collaborateurs
Images
Stamps, Coins Misc.
Sons
Ciguatera
Vitesse
Type de nage
Surface branchiale
Otolithes
Cerveaux
Vision

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00275 (0.00213 - 0.00356), b=3.18 (3.12 - 3.24), in cm total length, based on LWR estimates for this species (Ref. 93245).
Niveau trophique (Ref. 69278):  3.3   ±0.49 se; based on food items.
Generation time: 49.9 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Résilience (Ref. 120179):  Très faible, temps minimum de doublement de population supérieur à 14 ans (tm=16-26; tmax=97; K=0.04; Fec=50,000).
Vulnérabilité (Ref. 59153):  Very high vulnerability (89 of 100) .
Catégorie de prix (Ref. 80766):   Unknown.