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Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Pogonichthys: Greek, pogon = beard + Greek, ichthys = fish (Ref. 45335).
More on author: Ayres.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水; 半咸淡水 底中水层性; 河川洄游 (Ref. 126106). 溫帶; 39°N - 36°N
North America: formerly throughout the Sacramento-San Joaquin River drainage in California, USA; now mostly in San Francisco Bay Delta and lower Sacramento and San Joaquin rivers.
北美洲: 從前在美國加州知道在薩克拉門托河- 聖約昆河的河流域各處; 現在侷限於舊金山海灣三角州與薩克拉門托河河下游。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 44.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5723); common length : 30.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 5 年 (Ref. 72485)
背的软条 (总数) : 9 - 10. Body long, slender and compressed; dorsal-fin origin in front of pelvic-fin origin; upper lobe of caudal fin longer than lower lobe; barbel at corner of slightly subterminal mouth; scales on lateral line 57-64, usually 60-62; dorsal fin with 9-10 rays; 1st gill arch with 14-18 rakers; pharyngeal teeth 2,5-5,2; olive-gray above, silver gold side; large specimen with hump on nape; and red-orange caudal and paired fins (Ref. 86798).
Inhabits lakes and backwaters and pools of rivers. Tolerant of brackish water (Ref. 5723, 86798).
栖息于河川与湖泊的洄水区与水池。 宽容的半淡咸水.(参考文献 5723)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
北美洲: 從前在美國加州知道在薩克拉門托河- 聖約昆河的河流域各處; 現在侷限於舊金山海灣三角州與薩克拉門托河河下游。
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 2025-2 (Global))
人类利用
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基于模型的估算
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00256 - 0.01076), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
营养阶层 (参考文献 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
回复力 (参考文献 120179) |
低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.). |
渔业脆弱性 (Ref. 59153) |
High vulnerability (56 of 100). 🛈 |