分類 / Names
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Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Eponymy: Sir John Richardson (1787–1865) was a Scottish naval surgeon, naturalist and Arctic explorer. [...] (Ref. 128868), visit book page.
More on author: Girard.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
; 新鮮な水 底生の漂泳性. Temperate; 42°N - 37°N
North America: Lahontan and other interior basins in northern Nevada and northern California, USA including Humboldt, Walker, Carson, Truckee, Susan, Quinn and Reese River systems; Walker, Tahoe and Pyramid Lakes. Introduced elsewhere, including upper Sacramento River systems in California.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 17.0 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 7.2 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大記録サイズ: 5 年 (Ref. 12193)
Distinguished from a similar species Richardsonius balteatus by having less anal rays (8-9, rarely 10), longer snout, more slender body and less slender caudal peduncle (Ref. 86798).
Body shape (shape guide): fusiform / normal.
Occurs in margin of lakes and all types of stream habitats but usually in pools and slow runs (Ref. 86798).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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のレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00395 - 0.01919), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
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 (tmax=5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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