分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Rhinichthys: Greek, rhinos = nose + Greek, ichthys = fish (Ref. 45335); falcatus: The specific name is derived from falcatus (sickle-shaped) (Ref. 1998).
More on authors: Eigenmann & Eigenmann.
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: Fraser and Columbia River drainages in British Columbia in Canada, Washington, Oregon and Idaho in USA.
北美洲: 在加拿大的英屬哥倫比亞,美國華盛頓州,奧勒岡州與愛達荷州的菲沙河與哥倫比亞河流域。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 12.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 86798); common length : 6.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193)
Adults inhabit flowing pools and gravel runs of creeks and small to medium rivers. They are also found in rocky margins of lakes (Ref. 86798). Young-of-the-year feed mostly on dipterous larvae; yearlings feed on aquatic insect larvae (mostly Ephemeroptera and Diptera) during the months of June and July switching to terrestrial insects in September; adults more than 2 years also feed on aquatic insect larvae, (Ephemeroptera and Diptera), terrestrial insects, and earthworms (Lumbricus) displaced from the soil (Ref. 1998). Spawning occurs early July (Ref. 1998) Migratory behaviour is undetermined (Ref. 126106)..
棲息於小溪及小型到中型河川的流動的水潭與礫石小支流。 也生活於湖的岩石的邊緣中。 當年的幼魚大部分吃雙翅目昆蟲幼生; 滿一歲的魚在九月轉換到陸棲的昆蟲的六月與七月期間吃水生的昆蟲幼生 (大部份蜉蝣與 雙翅類); 超過2 歲的成魚也吃水生的昆蟲幼生,(蜉蝣與雙翅類), 陸棲的昆蟲 , 與移置從土壤的蚯蚓 (Lumbricus).(參考文獻 1998) 產卵七月初。 (參考文獻 1998)
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: 在加拿大的英屬哥倫比亞,美國華盛頓州,奧勒岡州與愛達荷州的菲沙河與哥倫比亞河流域。
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 01 March 2012
人類使用
漁業: 沒有興趣
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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) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00256 - 0.01076), 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) |
2.7 ±0.26 se; based on food items. |
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 to moderate vulnerability (27 of 100). 🛈 |