分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Chondrostei >
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
生态学
; 淡水 居于水底的; 河川洄游 (Ref. 51243); 深度上下限 2 - ? m. 溫帶; 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.
北美洲: 密西西比河流域, 包括密蘇里河進入蒙大納，俄亥俄河與他們的主要支流。 至少一個國家報告引入後的不利的生態衝擊。 國際間的買賣限制。 ( 引用2, 自從 11.6.92 以後)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 221 cm TL 雄鱼/尚未辨别雌雄; (Ref. 86798); common length : 120 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大体重: 90.7 kg (Ref. 3221); 最大年龄: 55 年 (Ref. 46974)
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).
栖息于大河的缓慢流动水, 通常在深度超过 1.3 公尺的水域。 吃浮游生物。 扩大的上颌 (= 桨) 可能进入嘴巴之内对峡道浮游生物帮助。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
北美洲: 密西西比河流域, 包括密蘇里河進入蒙大納，俄亥俄河與他們的主要支流。 至少一個國家報告引入後的不利的生態衝擊。 國際間的買賣限制。 ( 引用2, 自從 11.6.92 以後)
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
人类利用
渔业: 商业性; 游钓鱼种: 是的; 水族馆: 公众的水族馆
工具
特别资料
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网络资源
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).
营养阶层 (Ref.
69278): 3.1 ±0.0 se; based on diet studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (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);
