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Polyodon spathula (Walbaum, 1792)

Mississippi paddlefish
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Image of Polyodon spathula (Mississippi paddlefish)
Polyodon spathula
Picture by Moreau, J.

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

> Acipenseriformes (Sturgeons and paddlefishes) > Polyodontidae (Paddlefishes)
Etymology: Polyodon: Greek, polys = a lot of + Greek, odous = teeth (Ref. 45335)spathula: From the words Poly, meaning many; don, tooth; and spathula, meaning blade or paddle (Ref. 10294).
More on author: Walbaum.

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

; süßwasser demersal; potamodrom (Ref. 51243); tiefenbereich 2 - ? m. Subtropical; 10°C - 18°C (Ref. 2060); 49°N - 29°N, 112°W - 77°W (Ref. 86798)

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

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 221 cm TL Männchen/unbestimmt; (Ref. 86798); common length : 120 cm TL Männchen/unbestimmt; (Ref. 12193); max. veröff. Gewicht: 90.7 kg (Ref. 3221); max. veröff. Alter: 55 Jahre (Ref. 46974)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

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

Biologie     Fachlexikon (Englisch) (z.B. 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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

  gefährdet, siehe IUCN Red List (VU) (A2cd); Date assessed: 14 September 2019

CITES


CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen






Nutzung durch Menschen

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

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.2500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00431 - 0.00968), b=3.10 (2.99 - 3.21), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.1   ±0.0 se; based on diet studies.
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (tm=6-9; tmax=30).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Preiskategorie (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 29.6 [13.4, 59.0] mg/100g; Iron = 1.11 [0.65, 1.86] mg/100g; Protein = 18.1 [15.6, 20.7] %; Omega3 = 0.356 [0.139, 0.908] g/100g; Selenium = 71.4 [29.0, 167.5] μg/100g; VitaminA = 11.8 [3.6, 39.5] μg/100g; Zinc = 0.737 [0.499, 1.125] mg/100g (wet weight);