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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.
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)
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. registada: 55 anos (Ref. 46974)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Snout long, canoe-paddle-shaped; gill cover with large, fleshy, pointed flap (Ref. 86798).
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).
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-2)
Utilização humana
Pescarias: espécies comerciais; peixe desportivo: sim; Aquário: Aquários públicos
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
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).
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);
