分类 / Names
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Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Luxilus: Latin, luxilus, derived from Lux = light, refered to a small silvery fish (Ref. 45335); coccogenis: coccogenis, meaning berry-red cheek (Ref. 10294).
More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性. 溫帶; 38°N - 34°N
North America: upper Tennessee River drainage in Virginia, North Carolina, Tennessee, northern Georgia and northern Alabama, and adjacent tributaries of Savannah River in North Carolina and South Carolina, Santee River in North Carolina and New River in North Carolina, USA.
北美洲: 在維吉尼亞西部，北卡羅萊那州西部，田納西州, 美國喬治亞州北部與阿拉巴馬州北部與稀樹大草原河的毗連支流中在美國北卡羅萊那州的北卡羅萊那州與南卡羅萊那州, 北卡羅萊那州的 Santee 河與新的河的田納西河上游流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 86798); common length : 8.9 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 4 年 (Ref. 12193)
Inhabits gravel and rubble riffles and adjacent pools of clear, fast creeks and small to medium rivers (Ref. 86798). Common in cool, clear streams with rocky substrates. Feed on mayfly nymphs and other aquatic immatures, with some terrestrial insects during spring, while summer food consists mostly of insects taken at the surface, with aquatic immatures (Ref. 10294). Oviparous (Ref. 205), probably nest spawners like congeners.
栖息于砾石与清澈又快速小溪及小型到中型河川的碎石急流与毗连水池。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
北美洲: 在維吉尼亞西部，北卡羅萊那州西部，田納西州, 美國喬治亞州北部與阿拉巴馬州北部與稀樹大草原河的毗連支流中在美國北卡羅萊那州的北卡羅萊那州與南卡羅萊那州, 北卡羅萊那州的 Santee 河與新的河的田納西河上游流域。
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).
营养阶层 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (tmax=4).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
