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Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Laviniinae
Etymology: Gila: A river flowing from Southwest New Mexico westward across south Arizona into the Colorado River.
More on authors: Baird & Girard.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性; 河川洄游 (Ref. 126106). 亞熱帶的; 44°N - 28°N
North America: Colorado River drainage in Wyoming, Colorado, Utah, New Mexico and Arizona, USA (Ref. 86798); also Rio Yaqui south to Rio Piaxtla in northwestern Mexico (Ref. 5723).
北美洲: 在懷俄明州,科羅拉多,猶他州,內華達州,新墨西哥州與美國亞歷桑那州的科羅拉多河流域; Rio Yaqui 在墨西哥西北部中也南至 Rio Piaxtla 。 在美國有 4個亞種, 其它在墨西哥: 粗壯骨尾魚〔Gila robusta〕 jordani , 粗壯骨尾魚〔Gila robusta〕 seminuda , 粗壯骨尾魚〔Gila robusta〕 grahami 與 粗壯骨尾魚〔Gila robusta〕 robusta.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 43.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); common length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大年齡: 8 年 (Ref. 12193)
背的軟條 (總數) : 9; 臀鰭軟條: 9. Body deep and compressed. Head flat. Caudal peduncle slender. Caudal fin large and forked. Angle along base of the anal fin continues into the middle of the caudal fin. Mouth terminal, extending to front of eye. Dark olive-gray above, silver side. Breeding male may develop red or orange on lower half of cheek and paired-fin bases; Lateral line with 71-99 scales, usually more than 78. Dorsal and anal fins with 9 rays. First gill arch with 10 or more rakers. Pharyngeal teeth 2,5-4,2 (Ref. 86798).
Body shape (shape guide): elongated.
Adults inhabit rocky runs, sometimes pools, of creeks and small to large rivers as well as impoundments. May hybridize with Gila cypha throughout their shared range except in Yampa River (Ref. 86798).
棲息於多岩石的小支流, 有時水潭, 小溪與小型到大型河川。 有時常見於圈圍水域。
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: 在懷俄明州,科羅拉多,猶他州,內華達州,新墨西哥州與美國亞歷桑那州的科羅拉多河流域; Rio Yaqui 在墨西哥西北部中也南至 Rio Piaxtla 。 在美國有 4個亞種, 其它在墨西哥: 粗壯骨尾魚〔Gila robusta〕 jordani , 粗壯骨尾魚〔Gila robusta〕 seminuda , 粗壯骨尾魚〔Gila robusta〕 grahami 與 粗壯骨尾魚〔Gila robusta〕 robusta.
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: Version 2025-2 (Global))
易受傷害 (VU) (A2ce); Date assessed: 07 November 2018
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01148 (0.00455 - 0.02896), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
2.0 ±0.2 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (tmax=8). |
釣魚的脆弱性 (Ref. 59153) |
Moderate to high vulnerability (55 of 100). 🛈 |