Klassifizierung / Names
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Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335).
Eponymy: Dr Tamiji Kawamura (1883–1964) was a Japanese biologist and limnologist. [...] (Ref. 128868), visit book page.
More on authors: Jordan & McGregor.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch; standorttreu (Ref. 87053); tiefenbereich 38 - 180 m (Ref. 87053), usually 90 - ? m (Ref. 87053). Temperate; 4°C - 13°C (Ref. 87053)
Asia: endemic to Lake Tazawa in Akita Prefecture, Japan. Believed to have become extinct since 1940. Recently discovered in 2010 from Lake Saiko, Yamanashi Prefecture, one of the lakes where eyed eggs of this species were introduced in 1935.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 23.8 cm TL Männchen/unbestimmt; (Ref. 87053); 27.5 cm TL (female)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Presence of 47-62 pyloric caeca and 37-43 gill rakes (Ref. 87053).
Body shape (shape guide): fusiform / normal.
Probably feeds on mesopelagic or benthopelagic zooplankton (Ref. 87053)
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Nakabo, T., K. Nakayama, N. Muto and M. Miyazawa, 2011. Oncorhynchus kawamurae "Kunimasu," a deepwater trout, discovered in Lake Saiko, 70 years after extinction in the original habitat, Lake Tazawa, Japan. Ichthyol. Res. 58(2):180-183. (Ref. 87053)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00488 - 0.02245), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (18 of 100).
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