分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Chondrostei >
Acipenseriformes (Sturgeons and paddlefishes)
鱘形目 (Sturgeons and paddlefishes) >
Polyodontidae (Paddlefishes)
匙吻鱘 (Paddlefishes)
Etymology: Polyodon: Greek, polys = a lot of + Greek, odous = teeth (Ref. 45335); spathula: Polyodon, many toothed, perhaps due to the numerous gill rakers because adult paddlefish lack teeth, although young fish has many small teeth, and spathula meaning spatula, due to its elongated snout (Ref. 79012).
More on author: Walbaum.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; 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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 221 cm TL 雄魚/尚未辨別雌雄; (Ref. 86798); common length : 120 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大體重: 90.7 kg (Ref. 3221); 最大年齡: 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).
棲息於大河的緩慢流動水, 通常在深度超過 1.3 公尺的水域。 吃浮游生物。 擴大的上頜 (= 槳) 可能進入嘴巴之內對峽道浮游生物幫助。 受威脅的在捕穫, 棲息地損失與污染之上由於.(參考文獻 58490)
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)
人類使用
漁業: 商業性; 水族館: 公眾的水族館
工具
特別的報告
下載 XML
網路資源
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 (0.00430 - 0.00969), b=3.09 (2.98 - 3.20), in cm total length, based on LWR estimates for this species (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.0 se; based on diet studies.
回復力 (Ref.
120179): 低的, 最小族群倍增時間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);
