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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Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | 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 Ecologia

; gua doce; estuarina demersal; potamdromo (Ref. 51243); intervalo de profundidade 5 - 9 m (Ref. 117245), usually - m (Ref. ).   Temperate; 0°C - ; 60°N - 30°N, 100°W - 71°W

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

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

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm 97.0, range 90 - 120 cm
Max length : 274 cm TL macho/indeterminado; (Ref. 5723); common length : 97.5 cm TL macho/indeterminado; (Ref. 12193); peso máx. Publicado: 125.0 kg (Ref. 3672); Idade máx. registada: 152 anos (Ref. 72475)

Descrição breve Morfologia | Morfometria

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).

Biologia     Glossário (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 Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

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

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 124695)

  Preocupação menor (LC) ; Date assessed: 30 April 2004

CITES


Ameaça para o homem

  Harmless





Utilização humana

Pescarias: espcies comerciais; Aquacultura: experimental; peixe desportivo: sim; Aquário: Aquários públicos
FAO - pescarias: perfil da espécie; Publication: search | FishSource |

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Nomes comuns
Sinónimos
Metabolismo
Predadores
Ecotoxicologia
Reprodução
Maturidade
Desova
Agregação para desova
Fecundidade
Ovos
Desenvolvimento dos ovos
Referências
Aquacultura
Perfil para aquacultura
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Genética
Frequência dos alelos
Hereditariedade
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Nutrients
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Stamps, Coins Misc.
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Ciguatera
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Área branquial
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Fontes da internet

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).
Nível Trófico (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.
Resiliência (Ref. 120179):  Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (tm=16-26; tmax=97; K=0.04; Fec=50,000).
Vulnerabilidade (Ref. 59153):  Very high vulnerability (89 of 100) .
Categoria de preço (Ref. 80766):   Unknown.