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Oncorhynchus kawamurae Jordan & McGregor, 1925

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> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335).
More on authors: Jordan & McGregor.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の漂泳性; 深さの範囲 38 - 180 m (Ref. 87053), usually 90 - ? m (Ref. 87053). Temperate; 4°C - 13°C (Ref. 87053)

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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.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 23.3 cm SL オス/雌雄の選別がない; (Ref. 87053)

簡単な記述 検索表 | 形態学 | 形態計測学

Presence of 47-62 pyloric caeca and 37-43 gill rakes (Ref. 87053).

生物学     用語集 (例 epibenthic)

Probably feeds on mesopelagic or benthopelagic zooplankton (Ref. 87053)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

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のレッドリストの状況は (Ref. 130435)

  野生で絶滅した (EW) ; Date assessed: 07 December 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

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インターネットの情報源

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00482 - 0.02276), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.6   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (18 of 100).