Bulletin of the Hiroshima University Museum Issue 7
2015-12-25 発行

Influences of riverside vegetation on the health of ‘Gogi’ char <Article>

Tada, Shohei
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abstract
Relationships between the riverside vegetation and the health of a subspecies of Japanese common char, Salvelinus leucomaenis imbrius (‘Gogi’) were studied in the Chugoku Mountains. The densities of riverside vegetation comprising deciduous broad-leaf and evergreen coniferous trees, food environments comprising benthic and flowing aquatic animals and falling terrestrial animals, and the relative liver weight of char were examined. It is suggested that a high density of deciduous broad-leaf trees provides a good food environment, resulting in sound health of Gogi char.
subject
montainous stream
deciduous tree
aquatic insect
Gogi
health
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