分類 / Names
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.
Environment: milieu / climate zone / depth range / distribution range
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
Maturity: 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)
Inhabits flowing pools and gravel runs of creeks and small to medium rivers. Also occurs 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).
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)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00232 - 0.01084), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.7 ±0.26 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
