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

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Acipenser fulvescens Rafinesque, 1817

Lake sturgeon
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Acipenser fulvescens
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> 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 Ökologie

; swasser; brackwasser demersal; potamodrom (Ref. 51243); tiefenbereich 5 - 9 m (Ref. 117245), usually - m (Ref. ).   Temperate; 0°C - ; 60°N - 30°N, 100°W - 71°W

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

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

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 97.0, range 90 - 120 cm
Max length : 274 cm TL Männchen/unbestimmt; (Ref. 5723); common length : 97.5 cm TL Männchen/unbestimmt; (Ref. 12193); max. veröff. Gewicht: 125.0 kg (Ref. 3672); max. veröff. Alter: 152 Jahre (Ref. 72475)

Kurzbeschreibung Morphologie | Morphometrie

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     Fachlexikon (Englisch) (z.B. 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 Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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)

IUCN Rote Liste Status (Ref. 124695)

  nicht bedroht (LC) ; Date assessed: 30 April 2004

CITES


Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: kommerziell; Aquakultur: experimental; Sportfisch: ja; Aquarium: Öffentliche Aquarien
FAO - Fischereien: Artbeschreibung; Publication: search | FishSource |

Mehr Information

Namen
Synonyme
Metabolismus
Räuber
Ökotoxikologie
Fortpflanzung
Geschlechtsreife
Ablaichen
Spawning aggregation
Fecundity
Eier
Eientwicklung
Alter/Größe
Wachstum
Länge-Gewicht
Länge-Länge
Längenhäufigkeiten
Morphometrie
Morphologie
Larven
Larven Pop.Dyn.
Rekrutierung
Dichte
BRUVS
Referenzen
Aquakultur
Aquakultur Profil
Zuchtlinien
Genetik
Allel-Häufigkeiten
Vererbbarkeit
Krankheiten
Verarbeitung
Nutrients
Mass conversion
Partner
Bilder
Stamps, Coins Misc.
Laute
Ciguatera
Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
Gehirngröße
Sehfähigkeit

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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=0.00282 (0.00219 - 0.00363), b=3.18 (3.13 - 3.23), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (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.
Widerstandsfähigkeit (Ref. 120179):  sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (tm=16-26; tmax=97; K=0.04; Fec=50,000).
Verwundbarkeit (Ref. 59153):  Very high vulnerability (89 of 100) .
Preiskategorie (Ref. 80766):   Unknown.