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俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Oregonichthys: The state of Oregon in USA? + ichthys.
Eponymy: Frank Cramer (1861–1948) was an ichthyologist and biologist at Stanford University. [...] (Ref. 128868), visit book page.
More on author: Snyder.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的. 溫帶; 46°N - 43°N
North America: Willamette River drainages in Oregon, USA.
北美洲: Willamette 與美國奧勒岡州的安魁河流域。 常見於安魁但是本土化與稀有的在 Willamette 由於棲息地變更。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 7.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 86798); common length : 4.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193)
臀鰭軟條: 7. Oregonichthys crameri can be distinguished by the following characters: caudal peduncle strongly tapering to very narrow; barbel small (sometimes absent) at corner of terminal mouth; rounded snout; dorsal-fin origin over or slightly behind pelvic-fin origin; breast fully scaled; lateral line complete with 35-39 scales; 7 anal-fin rays; pharyngeal teeth 1,4-4,1; body compressed and deepest at dorsal-fin origin; and color consists of olive-tan above, green-brown stripe along back in front of dorsal fin, clusters of large brown-black spots scattered over back and silver side giving salt-and -pepper appearance, darkly outlined scales on back, lines of brown specks on lower side (Ref. 86798).
Adults occur in sluggish sand- and gravel-bottomed pools and backwaters of creeks and small rivers. Often found in vegetation and sometimes in ponds and impoundments (Ref. 86798). Migratory behaviour is undetermined (Ref. 126106).
發現於小溪與小河的砂質底而礫石底深潭與滯水區了,常見於植物中。 有時在池塘與圈圍水域。
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: Willamette 與美國奧勒岡州的安魁河流域。 常見於安魁但是本土化與稀有的在 Willamette 由於棲息地變更。
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 18 April 2012
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基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00266 - 0.01086), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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