分类 / Names
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Teleostei >
Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 溫帶; 34°N - 33°N
North America: Upper Salt River and Little Colorado River systems (Colorado River drainage) in Arizona, USA.
北美洲: 在美國亞歷桑那州的含鹽河上游與小科羅拉多河流域 (科羅拉多河流域)。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 58.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); common length : 25.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大体重: 2.4 kg (Ref. 40637)
Inhabits clear, cool mountain headwaters and creeks (generally above 2500 m elevation), and mountain lakes. A 95% (stream km) reduction in range has resulted due to hybridization with Oncorhynchus mykiss and competition from Salvelinus fontinalis and Salmo trutta.
栖息于清澈寒冷的山河源上游与小溪 (通常在上面 2500 公尺海拔), 与高山湖泊中。 95%(水流公里) 分布范围的缩减用来自 美洲红点鲑［溪红点鲑］［Salvelinus fontinalis］ 与 斑鳟属 trutta 的 Oncorhynchus mykiss 与竞争起因于杂交.
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Reproductive strategy: synchronous ovarian organization, determinate fecundity (Ref. 51846).北美洲: 在美國亞歷桑那州的含鹽河上游與小科羅拉多河流域 (科羅拉多河流域)。
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
人类利用
游钓鱼种: 是的
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00482 - 0.02276), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.8 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (43 of 100).
