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Oncorhynchus rhodurus Jordan & McGregor, 1925

Japanese Amago
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

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

Issue
Considered as a synonym in CofF (Sept. 2020). More genectic works that include all possible taxa in Oncorhynchus are needed, all existing studies being inconclusive because of the incomplete taxonomic sampling. Please send articles that we may have missed.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋; 淡水; 半咸淡水 居于水底的; 溯河洄游 (Ref. 51243). 溫帶

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Asia: originally endemic to Lake Biwa, then transplanted to Lake Chûzenji and Lake Ashinoko of Japan (Ref. 559).
亞洲: 琵琶湖的原始特有種, 然後對湖 Chuzenji 與日本的湖 Ashinoko 移植。 (參考文獻 559)

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 44.2 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); 最大体重: 1.3 kg (Ref. 40637)

生物学特性     字汇 (例如 epibenthic)

Oviparous (Ref. 205). Eggs are buried in unguarded nests (Ref. 205).

卵生的.(参考文献 205) 卵被埋藏在没有防卫的巢之中。 (参考文献 205)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

Distinct pairing (Ref. 205). Reproductive strategy: synchronous ovarian organization, determinate fecundity (Ref. 51846).亞洲: 琵琶湖的原始特有種, 然後對湖 Chuzenji 與日本的湖 Ashinoko 移植。 (參考文獻 559)

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)

不评价 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 商业性
FAO - Publication: search | FishSource |

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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=0.00457 (0.00180 - 0.01158), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.7   ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (34 of 100).
价格分类 (Ref. 80766):   Very high.