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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.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين نزديك كف زي; رود رو (Ref. 130035); تغييرات عمق 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.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 221 cm TL جنس نر / بدون خواص جنسي; (Ref. 86798); common length : 120 cm TL جنس نر / بدون خواص جنسي; (Ref. 12193); بيشينه وزن گزارش شده: 90.7 kg (Ref. 3221); بيشينه سن گزارش شده: 55 سال ها (Ref. 46974)
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
استفاده انسانی
ماهي گيري – شيلات: تجاري; ماهي ها ي سرگرم كننده: بله; آكواريوم: آکواریوم عمومی
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منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 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). |
سطح تروفیک (مرجع 69278) |
3.1 ±0.0 se; based on diet studies. |
جهندگی (مرجع 120179) |
پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (tm=6-9; tmax=30). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Very high vulnerability (85 of 100). 🛈 |
طبقه قيمت (Ref. 80766) |
Unknown.
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مواد مغذی (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); |