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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.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal; potamodromo (Ref. 130035); rango de profundidad 2 - ? m. Subtropical; 10°C - 18°C (Ref. 2060); 49°N - 29°N, 112°W - 77°W (Ref. 86798)
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.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 221 cm TL macho / no sexado; (Ref. 86798); common length : 120 cm TL macho / no sexado; (Ref. 12193); peso máximo publicado: 90.7 kg (Ref. 3221); edad máxima reportada: 55 años (Ref. 46974)
Descripción breve
Claves de identificación | Morfología | Morfometría
Snout long, canoe-paddle-shaped; gill cover with large, fleshy, pointed flap (Ref. 86798).
Body shape (shape guide): elongated.
Adukts usually inhabit water deeper than 1.2 m in slow-flowing large rivers, lakes, and impoundments (Ref. 86798). They feed 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).
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Usos humanos
Pesquerías: comercial; pesca deportiva: si; Acuario: Acuarios públicos
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 1.2500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00646 (0.00431 - 0.00968), b=3.09 (2.98 - 3.20), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.1 ±0.0 se; based on diet studies. |
Resiliencia (Referencia 120179) |
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (tm=6-9; tmax=30). |
Vulnerabilidad pesquera (Ref. 59153) |
Very high vulnerability (85 of 100). 🛈 |
Categoría de precios (Ref. 80766) |
Unknown.
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Nutrientes (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); |