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Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Salmoninae
Eponymy: Commodore Matthew Calbraith Perry (1794–1858) of the US Navy, is very famous for having commanded the United States Japan Expedition (1852–1854) that opened Japan to the outside world after more than 200 years of seclusion. [...] (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; sötvatten; brackvatten bentopelagisk; anadrom (Ref. 138280); djupintervall 0 - 100 m (Ref. 50610). Temperate; 50°N - 42°N
Northwest Pacific: Sea of Japan, from southern Kuril Islands and Primorskii Krai, Russia to Hokkaido.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 200 cm TL hane/ej könsbestämd; (Ref. 559); common length : 50.0 cm TL hane/ej könsbestämd; (Ref. 559); publicerad maxvikt: 24.0 kg (Ref. 56527); rapporterad maxålder: 16 år
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Adults usually inhabit lower and middle reaches of rivers and lakes. A sea-run form is found in the eastern coast of Hokkaido. Young feed mainly on aquatic insects while fishes more than 30 cm are completely piscivorous. Mature individuals spawn in spring in river branches, where the female lays 2,000-10,000 eggs on sandy or gravelly bottom.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: mindre kommeriell; Vattenbruk: experimentell; sportfisk: ja
Verktyg
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 1.6 - 9, mean 6.1 °C (based on 30 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00435 - 0.01263), b=2.97 (2.83 - 3.11), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.5 ±0.5 se; based on diet studies.
Generation time: 22.0 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Very high vulnerability (79 of 100).
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