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Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Plagopterinae
Etymology: Semotilus: Greek, sema = banner (dorsal fin) + Greek, tilos = spotted; used by Rafinesque (Ref. 45335).
More on author: Mitchill.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 溫帶; 52°N - 36°N
North America: Hudson Bay, Lake Ontario, and Atlantic Slope drainages from Quebec and Ontario, Canada to James River drainage, Virginia, USA.
北美洲: 大西洋斜坡從加拿大新布蘭斯維克到美國維吉尼亞的詹姆士河流域; 在加拿大魁北克與安大略省與美國的紐約州的哈得遜灣，安大略湖與聖勞倫斯流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 51.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 86798); common length : 17.1 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大體重: 1.6 kg (Ref. 40637); 最大年齡: 6 年 (Ref. 72462)
<>Semotilus corporalis can be distinguished by the possession of the following characters: large eye; large lateral scales (43-50); moderately compressed body; fairly long, rounded snout slightly overhanging large mouth; dorsal fin origin over or slightly behind pelvic-fin origin; 8 dorsal rays; 8 anal rays; adults have scales on backs and upper side darkly outlined; and young has black stripe along side, dark caudal spot. Olive to gold-brown above, dark stripe along back; bright silver side, sometimes with purple or blue sheen; black bar along back of gill cover. Breeding males have fairly large tubercles on head (Ref. 86798).
Inhabits gravel- and rubble-bottomed pools and runs of small to medium rivers, and also lake margins (Ref. 86798).
棲息於小型到中型河的礫石底與碎石底部水潭與急流 , 以及湖邊緣。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: 大西洋斜坡從加拿大新布蘭斯維克到美國維吉尼亞的詹姆士河流域; 在加拿大魁北克與安大略省與美國的紐約州的哈得遜灣，安大略湖與聖勞倫斯流域。
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
游釣魚種: 是的
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00549 - 0.02888), b=3.01 (2.80 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.55 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Fec=12,021).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
