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) >
Acipenseridae (Sturgeons)
鱘科 (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335); medirostris: The specific name is derived from medirostris, referring to its moderate snout (Ref. 1998).
More on author: Ayres.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 淡水; 半鹹淡水 居於水底的; 溯河洄游 (Ref. 120652); 深度上下限 0 - 80 m (Ref. 50610). 溫帶; 10°C - 20°C (Ref. 2059); 65°N - 32°N, 166°W - 114°W (Ref. 54261)
North America: Aleutian Islands and the Gulf of Alaska to Ensenada, Mexico. Considered vulnerable in Canada. The Asian population is now considered to be a separate species Acipenser mikadoi (Ref. 6866).
北美洲: 阿留申群島與阿拉斯加灣到墨西哥思勝那達。 被認為是易受傷害的在加拿大。 亞洲族群現在被認為是是一個個別的種 米氏鱘〔Acipenser mikadoi〕 。 (參考文獻 6866) 國際間的買賣限制 ( 引用2, 自從 1.4.98 以後; 公分 附錄 2).
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 162 - ? cm
Max length : 270 cm TL 雄魚/尚未辨別雌雄; (Ref. 96339); common length : 130 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大體重: 159.0 kg (Ref. 2850); 最大年齡: 60 年 (Ref. 72476)
背棘 (總數): 0; 背的軟條 (總數): 33-35; 臀棘 0; 臀鰭軟條: 22 - 28. Characterized by a single row of 1 to 4 bony plates along the midventral line between the anus and the anal fin, and about 33 to 35 rays in the dorsal fin. Dorsal arises at posterior third of the total length; anal fin arises under posterior part of dorsal; pectorals originate low on the body just behind gill opening and are large and rounded; pelvic fins arise near the anus. Generally olive to dark green, lower parts more or less whitish green; a longitudinal olive-green stripe on side between lateral and ventrolateral plates, another on midventral surface; fins grayish to pale green (Ref. 27547). Barbels usually situated closer to mouth than to snout tip; coloration of scutes along side paler than skin (Ref. 86798).
特徵為一個單列的 1 到 4個骨質板沿著在肛門與臀鰭之間的腹部中央的線, 在背鰭中大約 33 到 35個鰭條。 背部的出現在全長的後面三分之一; 臀鰭出現在較後面的部分下面背部的; 胸鰭起點在身體在鰓裂正後方而且是大而圓形的上低處; 腹鰭在肛門的附近出現。 通常橄欖色到深綠色的, 下部約略白綠色的; 在側面的和腹側的碟之間的側邊上的一條縱向的橄欖綠色的斑紋,另一個在腹部中央的表面上; 鰭淺灰色的到灰綠色.(參考文獻 27547)
Found in estuaries, lower reaches of large rivers, and in salt or brackish water off river mouths (Ref. 5723). Probably spawns in fresh water (Ref. 27547). May cover considerable distances in the ocean (Ref. 27547). Edible but with a disagreeable taste and unpleasant odor (Ref. 1998).
發現於河口，大河的下游了, 與在鹽或半淡鹹水河口外中.(參考文獻 5723) 可能在淡水中產卵。 (參考文獻 27547) 在海洋中可能包含相當多的距離。 (參考文獻 27547) 可食用的但是有一個不愉快的品嚐與不愉快的氣味.(參考文獻 1998)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: 阿留申群島與阿拉斯加灣到墨西哥思勝那達。 被認為是易受傷害的在加拿大。 亞洲族群現在被認為是是一個個別的種 米氏鱘〔Acipenser mikadoi〕 。 (參考文獻 6866) 國際間的買賣限制 ( 引用2, 自從 1.4.98 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)
瀕危 (EN) (A2bc); Date assessed: 14 September 2019
人類使用
漁業: 低經濟; 游釣魚種: 是的
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Estimates based on models
Preferred temperature (Ref.
123201): 9.1 - 12.7, mean 10.6 °C (based on 50 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00142 - 0.00736), b=3.17 (2.99 - 3.35), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.52 se; based on food items.
Generation time: 12.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (K=0.05-0.09).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (80 of 100).
Climate Vulnerability (Ref.
125649): High to very high vulnerability (67 of 100).
Nutrients (Ref.
124155): Calcium = 14.8 [9.0, 24.9] mg/100g; Iron = 0.253 [0.156, 0.390] mg/100g; Protein = 17.7 [15.1, 20.3] %; Omega3 = 0.354 [0.202, 0.615] g/100g; Selenium = 22.6 [12.6, 42.8] μg/100g; VitaminA = 4.61 [1.77, 11.95] μg/100g; Zinc = 0.437 [0.320, 0.597] mg/100g (wet weight);
