You can sponsor this page

Polyodon spathula (Walbaum, 1792)

Mississippi paddlefish
Carregue seu(sua) Fotos e vídeos
Pictures | Stamps, coins, misc. | Imagem do Google
Image of Polyodon spathula (Mississippi paddlefish)
Polyodon spathula
Picture by Moreau, J.


United States (contiguous states) country information

Common names: Mississippi paddlefish, Paddlefish
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Missouri Department of Conservation, 2008
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Known from Mississippi River basin from southwestern New York to Montana and south to Louisiana; Gulf Slope drainagaes from Mobile Bay in Alabama, to Galveston Bay in Texas. Formerly in Great Lakes basin, probably extirpated (Ref. 86798). Also 276, 5723, 10294. Status of threat: vulnerable; status same as 1989. Criteria: 1,2 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Page, L.M. and B.M. Burr, 2011
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Acipenseriformes (Sturgeons and paddlefishes) > Polyodontidae (Paddlefishes)
Etymology: Polyodon: Greek, polys = a lot of + Greek, odous = teeth (Ref. 45335);  spathula: Polyodon, many toothed, perhaps due to the numerous gill rakers because adult paddlefish lack teeth, although young fish has many small teeth, and spathula meaning spatula, due to its elongated snout (Ref. 79012).
  More on author: Walbaum.

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

; Água doce demersal; potamódromo (Ref. 51243); intervalo de profundidade 2 - ? m.   Subtropical; 10°C - 18°C (Ref. 2060); 49°N - 29°N, 112°W - 77°W (Ref. 86798)

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

North America: Mississippi River basin from southwestern New York to Montana and south to Louisiana; Gulf Slope drainagaes from Mobile Bay in Alabama, to Galveston Bay in Texas, USA. Formerly in Great Lakes basin, probably extirpated. At least one country reports adverse ecological impact after introduction.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 221 cm TL macho/indeterminado; (Ref. 86798); common length : 120 cm TL macho/indeterminado; (Ref. 12193); peso máx. publicado: 90.7 kg (Ref. 3221); idade máx. registrada: 55 anos (Ref. 46974)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Snout long, canoe-paddle-shaped; gill cover with large, fleshy, pointed flap (Ref. 86798).

Biologia     Glossário (p.ex. epibenthic)

Usually inhabits water deeper than 1.2 m in slow-flowing large rivers, lakes, and impoundments (Ref. 86798). Feeds on plankton. The extended upper jaw (= paddle) may help to channel plankton into the mouth. Threatened due to over harvesting, habitat loss and pollution (Ref. 58490).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

Status na Lista Vermelha da UICN (Ref. 130435)

  Vulnerável, ver Livro Vermelho da UICN (VU) (A2cd); Date assessed: 14 September 2019

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos





Uso pelos humanos

Pescarias: espécies comerciais; Aquário: Aquários públicos
FAO(pescarias: produção, perfil da espécie; publication : search) | FishSource |

Mais informação

Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
Food rations
Predadores
Ecology
Ecologia
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequências de comprimento
Mass conversions
Recruitments
Abundances
Life cycle
Reprodução
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvas
Dinâmica larval
Anatomy
Gill areas
Cérebros
Otólitos
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natação
Swimming speeds
Visual pigment(s)
Sons de peixes
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
References
Referências

Ferramentas

Relatórios especiais

Baixar XML

Fontes da internet

Estimates based on models

Índice de diversidade filogenética (Ref. 82804):  PD50 = 1.2500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00430 - 0.00969), b=3.09 (2.98 - 3.20), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Nível Trófico (Ref. 69278):  3.1   ±0.0 se; based on diet studies.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (tm=6-9; tmax=30).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Categoria de preço (Ref. 80766):   Unknown.