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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.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina; sötvatten; brackvatten bentopelagisk; anadrom (Ref. 51243); 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.
Size / Vikt / Age
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
Short description
Bestämningsnycklar | Morfologi | Morfometri
Usually inhabits 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. Spawns in spring in river branches, where the female lays 2,000-10,000 eggs on sandy or gravelly bottom.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | 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)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fiskeri: mindre kommeriell; Vattenbruk: experimentell; sportfisk: ja
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 1.6 - 9, mean 6.1 °C (based on 30 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00437 - 0.01257), b=2.97 (2.82 - 3.12), 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.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).
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