Iteroparity of stream resident masu salmon  Oncorhynchus masou | Zendy

Morita Kentaro | Zendy; Tsuboi Junichi | Zendy; Sahashi Genki | Zendy; Kikko Takeshi | Zendy; Ishizaki Daisuke | Zendy; Kishi Daisuke | Zendy; Endo Shinsuke | Zendy; Koseki Yusuke | Zendy

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Iteroparity of stream resident masu salmon Oncorhynchus masou

Author(s) -

Morita Kentaro,

Tsuboi Junichi,

Sahashi Genki,

Kikko Takeshi,

Ishizaki Daisuke,

Kishi Daisuke,

Endo Shinsuke,

Koseki Yusuke

Publication year - 2018

Publication title -

journal of fish biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.672

H-Index - 115

eISSN - 1095-8649

pISSN - 0022-1112

DOI - 10.1111/jfb.13771

Subject(s) - oncorhynchus , semelparity and iteroparity , biology , zoology , fishery , population , ecology , life history , fish <actinopterygii> , demography , sociology

The degree of iteroparity in stream‐resident forms of masu salmon Oncorhynchus masou was examined using mark–recapture studies in natural streams. In a partially migratory population, at least 10% of resident males survived after maturation and repeatedly matured for up to 5 years. In the landlocked amago salmon subspecies, the post‐maturation survival rate was at least 7% and repeat maturation was observed for up to 3 years for both males and females.

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