分類 / Names
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Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Plagopterinae
Etymology: Plagopterus: Greek, plagios = oblique + Greek, pteron = wing, fin (Ref. 45335).
More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 溫帶; 36°N - 32°N
North America: Virgin and Gila River systems (both lower Colorado River drainage) in Utah, Nevada and Arizona, USA. Extant only in Gila River system.
北美洲: 在猶他州，內華達州與美國亞歷桑那州的處女河與吉拉河系統 (兩者的科羅拉多河下游流域)。 現在在吉拉河系統相信已滅絕。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 26186); 最大年齡: 4 年 (Ref. 12193)
臀鰭軟條: 9 - 10. Anal fin with 9-10 rays; ventral-fin origin before dorsal-fin origin; large, forked caudal fin; pharyngeal teeth 1,5-4,1; scales absent; wide, flat head; body compressed at rear; subterminal mouth on long, rounded snout; barbel at corner of mouth; fairly small eye high on head; dusky gray above; brilliant silver side, often with blue sheen, sometimes faint yellow at paired fin bases; breeding males with pink lower side (Ref. 86798).
Occurs in fast sandy runs and pools of small to medium rivers, usually in warm turbid water (Ref. 86798). Most commonly found in shallow, moderately flowing water over shifting sand substrates (Ref. 26186). Spawning in the Virgin river begins in April to May and continues through August (Ref. 26186).
棲息於小型到中型河的快速多沙的支流, 通常在溫暖的混濁水。 有時在水池中.(參考文獻 5723) 改變沙子底部之上最普遍發現於淺且流動和緩的水。 (參考文獻 26186) 產卵在處女河中在四月到五月開始而且繼續過八月。 (參考文獻 26186)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
北美洲: 在猶他州，內華達州與美國亞歷桑那州的處女河與吉拉河系統 (兩者的科羅拉多河下游流域)。 現在在吉拉河系統相信已滅絕。
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)
極危 (CR) (B1ab(i,ii,iii,v)); Date assessed: 11 April 2012
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00476 - 0.02768), b=3.02 (2.81 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.1 se; based on diet studies.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (tmax=4).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
