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> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Prosopium: Greek, prosopon = face (Ref. 45335); coulterii: Named after Dr. J.M. Coulter, a distinguished botanist.
Eponymy: Dr John Merle Coulter (1851–1928) was an American botanist. [...] (Ref. 128868), visit book page.
More on authors: Eigenmann & Eigenmann.
Etymology: Prosopium: Greek, prosopon = face (Ref. 45335); coulterii: Named after Dr. J.M. Coulter, a distinguished botanist.
Eponymy: Dr John Merle Coulter (1851–1928) was an American botanist. [...] (Ref. 128868), visit book page.
More on authors: Eigenmann & Eigenmann.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水 底生の漂泳性; potamodromous (Ref. 126106); 深さの範囲 18 - 168 m (Ref. 27547), usually 55 - 70 m (Ref. 1998). Temperate; 59°N - 47°N
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
North America: three disjunct areas: Lake Superior in Ontario, Canada and Michigan, USA; Yukon River drainage in Yukon, Canada to Columbia River drainage in western Montana and Washington, USA; and Chignik, Naknek and Wood River drainages in southwest Alaska. Europe: Russia (Ref. 26334).
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 28.0 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 11.5 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大記録サイズ: 9 年 (Ref. 10320)
Max length : 28.0 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 11.5 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大記録サイズ: 9 年 (Ref. 10320)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 背鰭 (合計) : 10 - 13; 肛門の骨: 0; 臀鰭: 10 - 14; 脊つい: 49 - 55. Body elongate, almost cylindrical. Head elongate, its length slightly greater than body depth; eye relatively large, its diameter greater than snout length; snout bluntly rounded, overhanging mouth, not obviously pointed, a single flap of skin present between nostrils. Nuptial tubercles developed in both males and females, but more conspicuous in males, and occur on top of head, on scales on back and sides, and on paired fins. Body is brownish above, silvery on sides and white below. Dorsal, caudal, and pectoral fins usually clear, anal and pelvic whitish and immaculate, a faint dark spot sometimes present on base of caudal fin. A series of 12 - 14 similar spots present along the midline of the back, and 7 - 14 dark, round or oval parr marks with diffuse borders present along the lateral line of young and sub adults, although some Alaskan forms retain parr marks even on largest fish.
Body shape (shape guide): elongated; Cross section: oval.
Body shape (shape guide): elongated; Cross section: oval.
Adults inhabit lakes and rivers of mountainous areas (Ref. 1998). They feed mainly on crustaceans and aquatic insect larvae (Ref. 1998). Minimum depth reported from Ref. 1998.
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Moves to spawning grounds in the early winter and presumably back into deeper water after spawning. Spawns at night, presumably the eggs are broadcast, settling into interstices in the gravel. Hatching occurs the following spring (Ref. 27547).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
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)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 興味がない; ゲームフィッシュ: はい
FAO - Publication: search | FishSource |
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酸素消費
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泳ぐ速さ
視覚色素
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病気と寄生虫
毒性（LC50）
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
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モデルに基づく推定値
系統多様性指数 (参照 82804): PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00241 - 0.00868), b=3.14 (2.96 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (参照 69278): 3.1 ±0.35 se; based on food items.
Generation time: 2.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
回復力 (参照 120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (tm=1-2; tmax=9; Fec=103).