分類 / 名稱
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) >
Acipenseridae (Sturgeons)
鱘科 (Sturgeons)
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
More on author: Rafinesque.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水; 半鹹淡水 居於水底的; 河川洄游 (Ref. 116361); 深度上下限 5 - 9 m (Ref. 117245). 溫帶; 60°N - 30°N, 100°W - 71°W
North America: St. Lawrence-Great Lakes, Hudson Bay, and Mississippi River basins.
北美洲: 聖勞倫斯河-五大湖區，哈得遜灣與密西西比河流域。 國際間的買賣限制 ( 引用2, 自從 1.7.75 以後; 公分 附錄 2).
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 99.7, range 90 - 120 cm
Max length : 274 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); common length : 97.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大體重: 125.0 kg (Ref. 3672); 最大年齡: 152 年 (Ref. 72475)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Single row of preanal shields. Soft area on the top of the head absent and black viscera. Large blotches present on anterior half of upper surface of snout and on back. Lower surface whitish (Ref. 37032). Anal fin origin behind dorsal fin origin; scutes on back and along side same color as skin (Ref. 86798).
Body shape (shape guide): elongated.
單列的肛前甲。 在頭部的頂端上的軟的區域不存在與黑色的內臟。 大的斑塊位於吻的前半部上表皮之上與背面。 下表面微白色的.(參考文獻 37032)
Adults inhabit bottom of lakes and large rivers (Ref. 10294), usually in 5-9 m depth, over mud, sand, and gravel. Occasionally enters brackish water. A specimen caught in 1952 was reputed to have been 152 years old (Ref. 6866). Search for food, with the aid of the sensory ability of the barbels, by constantly moving close to the substrate. Omnivorous, virtually anything edible that enters the mouth is sucked up and consumed. The food is worked or pulled in the mouth, often partly ejected and sucked in again (Ref. 1998). Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542). In the 1800s, it was extensively exploited for oil to fire boilers on steamboats, animal feed and fertilizer. Later is was high-valued as smoked, caviar and isinglass (Ref. 117245). In 1951, Canada, 2,000 lbs. of caviar were made from the eggs (Ref. 37032). It continous to be an important source of food for Indigenous people in North America (Ref. 117245). Threatened due to over harvesting, habitat loss and pollution (Ref. 58490).
棲息於湖與大河 (參考文獻 10294) 的底部, 通常在 5-9 公尺深,在泥，沙子與礫石之上。 偶然地進入半淡鹹水。 在一件標本捕獲的 1952 是相傳曾經 152 歲.(參考文獻 6866) 尋找食物，與觸鬚的知覺能力的幫助，利用在接近底部處不斷地移動。 雜食性, 事實上進入嘴巴的任何可吃的東西被吸取消耗。 食物被工作或者吸引.嘴巴, 時常部分再一次吐出與吸入.(參考文獻 1998) 產卵區是多岩石與卵石的區域沿著河的外灣。 (參考文獻 41542) 煙燻.而且在 1951 年在加拿大，魚子醬的 2,000個磅被做從卵。 (參考文獻 37032) 受威脅的在捕穫, 棲息地損失與污染之上由於.(參考文獻 58490)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542).北美洲: 聖勞倫斯河-五大湖區，哈得遜灣與密西西比河流域。 國際間的買賣限制 ( 引用2, 自從 1.7.75 以後; 公分 附錄 2).
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
瀕危 (EN) (A2bcd); Date assessed: 14 September 2019
人類使用
漁業: 商業性; 養殖: 實驗的; 游釣魚種: 是的; 水族館: 公眾的水族館
工具
特別的報告
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網路資源
基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00214 - 0.00339), b=3.18 (3.13 - 3.23), in cm total length, based on LWR estimates for this species (Ref.
93245).
營養階層 (參考文獻
69278): 3.3 ±0.49 se; based on food items.
回復力 (參考文獻
120179): 非常低的, 最小族群倍增時間超過14 年 (tm=16-26; tmax=152; K=0.04; Fec=50,000).
釣魚的脆弱性 (Ref.
59153): Very high vulnerability (86 of 100).
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