分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Laviniinae
Etymology: Ptychocheilus: Greek, ptyx, ptychos = fold + Greek, cheilos = lip (Ref. 45335); oregonensis: oregonensis meaning - of Oregon (Ref. 1998).
More on author: Richardson.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 溫帶; 55°N - 39°N
North America: Pacific drainages from Nass River in British Columbia, Canada to Columbia River in Nevada, USA; Harney River basin in Oregon, USA; Peace River system (Arctic basin) in British Columbia and Alberta, Canada.
北美洲: 太平洋的流域從加拿大英屬哥倫比亞的 Nass 河到美國內華達州的哥倫比亞河; 在美國的奧勒岡州的 Harney 河流域; 在加拿大的在卑詩省與亞伯達的和平河流域 (北極流域)。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 63.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5723); common length : 22.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大体重: 13.0 kg (Ref. 1998); 最大年龄: 11 年 (Ref. 72462)
背的软条 (总数) : 9 - 10; 臀鳍软条: 8 - 9; 脊椎骨: 44 - 46. Mot deep bodied, greatest depth 16.6% (TL), belly gently rounded in mature individuals. Head moderately long, its length 22.8% (TL); eye small in adults, 17.6% of head length, but larger in young 7.6 cm long, when 25.2% of head length; snout long, 33.1% of head length of adults; interorbital width 29.6% of head length; mouth large, extending back to below anterior margin of eye. All fins clear. Pelvic axillary process usually a ridge. Peritoneum present. Nuptial tubercles fine, on head and back, on pectoral and pelvic fins and sometimes on the caudal fin. Dark green or green-brown dorsally becoming silvery white or cream ventrally. The lower fins of the males become yellow or yellow-orange during spawning period (Ref. 1998). Dorsal fin usually with 9 rays; anal fin with 8 rays; 48-72, usually 51-62, scales on back from head to dorsal fin; 64-79, usually 66-75, scales on lateral line; and 12-20 scales above lateral line (Ref. 86798).
Mot 深地身体, 最大的高度 16.6%(TL), 腹面逐渐地在成熟的个体中圆的。 头部中等长度的, 它的长度 22.8%(TL); 眼小的当成鱼时,17.6% 的头长, 但是比较大的当幼鱼时 7.6 公分长, 当 25.2% 的头长; 成鱼的吻长又 33.1% 头长; 眼间骨宽度 29.6% 的头长; 嘴大的, 在眼的前缘之下向后延伸到。 所有的鳍清澈的。 腹鳍腋窝的羽翼突起通常一个脊。 腹膜呈现。 珠星细的, 在头部与背部上, 在胸鳍与腹鳍上与有时在尾鳍上。 深绿色或绿色的-褐色背面变成银白色或腹侧乳黄色。 雄性的下面鳍在产卵时期的时候变成黄色或橘黄色。
Found in lakes, pools and occasionally in runs of small to large rivers. Large individuals occur in deep water (Ref. 5723, 86798). Feeds on fishes, terrestrial insects, plankton, aquatic insect larvae, and crustaceans while inshore; feeds mostly on fishes while offshore (Ref. 1998). Male squawfish, prickly sculpins, and newts prey on the eggs (Ref. 1998). Edible but not well appreciated (1998).
出现于湖, 池塘而且偶见于小型到大型河川的小支流。 吃鱼，地球上的人昆虫，浮游生物，水生的昆虫幼生与甲壳动物当在岸边时; 大部分捕食鱼当离岸时。 (参考文献 1998) 雄性大型食用淡水鱼，多刺的杜父鱼科的河鱼, 而且捕食蝾螈的卵.(参考文献 1998) 可食用的但是不受喜爱.(1998)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
A female is surrounded by males close to the bottom; eggs and sperm are released at the same time and eggs settle in the gravel.北美洲: 太平洋的流域從加拿大英屬哥倫比亞的 Nass 河到美國內華達州的哥倫比亞河; 在美國的奧勒岡州的 Harney 河流域; 在加拿大的在卑詩省與亞伯達的和平河流域 (北極流域)。
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)
人类利用
渔业: 商业性; 游钓鱼种: 是的; 水族馆: 公众的水族馆
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00429 - 0.02678), b=3.02 (2.80 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 4.2 ±0.4 se; based on diet studies.
Generation time: 13.6 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (K=0.08-0.21).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
