Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный демерсальный. Temperate; 54°N - 38°N
North America: Canada and USA from Saskatchewan River system and Fraser River drainage south through upper Missouri and Colorado River drainages to Colorado and Utah; Lahontan basin in the USA; upper Sacramento River system in California and through Oregon and Washington to southern British Columbia.
Length at first maturity / Size / Вес / Возраст
Maturity: Lm ?, range 11 - ? cm
Max length : 25.0 cm TL самец/пол неопределен; (Ref. 5723); common length : 11.3 cm TL самец/пол неопределен; (Ref. 12193); наибольший возраст (опубликованны данные): 9 годы (Ref. 12193)
Occurs in various habitats, but most common in rocky riffles and runs of clear mountain creeks and small to medium rivers. Rarely found in lakes (Ref. 1998). Feeds on diatoms, other algae, higher plants, dipterous larvae and pupae (Ref. 1998). Spawning adults may be preyed upon by birds and mammals while small individuals may be preyed upon by stream salmonids (Ref. 1998). Edible.
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)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
наживка: usually
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
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=0.00631 (0.00316 - 0.01259), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 2.3 ±0.18 se; based on food items.
Generation time: 3.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
устойчивость к внешним воздействиям (Ref.
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (tm=2-5).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).