Ptychocheilus oregonensis, Northern pikeminnow : gamefish, aquarium

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Ptychocheilus oregonensis (Richardson, 1836)

Northern pikeminnow
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Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> 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 Ekologi

; sötvatten bentopelagisk. Temperate; 55°N - 39°N

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

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.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 63.0 cm TL hane/ej könsbestämd; (Ref. 5723); common length : 22.0 cm TL hane/ej könsbestämd; (Ref. 12193); publicerad maxvikt: 13.0 kg (Ref. 1998); rapporterad maxålder: 11 år (Ref. 72462)

Short description Morfologi | Morfometri

Mjukstrålar i ryggfenan (totalt): 9-10; Mjukstrålar i analfenan: 8 - 9; Ryggkotor: 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).

Biologi     Ordlista (t.ex. epibenthic)

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).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

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.

Main reference Upload your references | referenser | Koordinator | Medarbetare

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 Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 March 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Sportfisk: ja; Akvarium: Offentliga akvarier
FAO - Publication: search | FishSource |

Ytterligare information

Länder
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Ekosystem
Förekomster
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Ekologi
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Födointag
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synonymer
Metabolik
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Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
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referenser
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
Trofisk nivå (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.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.08-0.21).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (50 of 100).