分类 / Names
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Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Hybognathus: Greek, ybos, -e, -on = curved + Greek, gnathos = jaw; with bulging jaw (Ref. 45335); nuchalis: From the word nuchalis, meaning nape (Ref. 10294).
More on author: Agassiz.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 底中水层性. 亞熱帶的; 44°N - 26°N
North America: lowland areas of Mississippi River basin from Ohio to Minnesota and south to Louisiana, USA; Gulf drainages from Mobile Bay in Alabama to Brazos River in Texas, USA.
北美洲: 密西西比河流域從俄亥俄州到威斯康辛州與明尼蘇達州的低地區域, 而且南至灣; 岸灣流域從阿拉巴馬州的摩比灣流域到美國德州的布拉索斯河; 在德克薩斯與美國新墨西哥州的 Rio Grande 流域 (包括佩科斯河)。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 18.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 86798); common length : 12.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 2.00 年 (Ref. 72462)
Occurs in pools and backwaters of low-gradient creeks and small to large rivers (Ref. 86798). Oviparous, probably open substratum spawners like congeners (Ref. 205).
出现于坡度缓之小溪与小型到大型河川的深潭与滞水区。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
北美洲: 密西西比河流域從俄亥俄州到威斯康辛州與明尼蘇達州的低地區域, 而且南至灣; 岸灣流域從阿拉巴馬州的摩比灣流域到美國德州的布拉索斯河; 在德克薩斯與美國新墨西哥州的 Rio Grande 流域 (包括佩科斯河)。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (参考文献
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00242 - 0.01036), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Generation time: 5.5 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回复力 (参考文献
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (K=0.2).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
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