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Riverine environmental characteristics and seasonal habitat use by adult Sakhalin taimen Hucho perryi

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Title: Riverine environmental characteristics and seasonal habitat use by adult Sakhalin taimen Hucho perryi
Authors: Honda, K. Browse this author
Kagiwada, H. Browse this author
Tojo, N. Browse this author
Miyashita, K. Browse this author →KAKEN DB
Keywords: Acoustic telemetry
Bekanbeushi River
Endangered species
River environmental characteristics
Hucho. perryi
Seasonal habitat
Issue Date: Nov-2010
Publisher: Blackwell Publishing
Journal Title: Journal of Fish Biology
Volume: 77
Issue: 7
Start Page: 1526
End Page: 1541
Publisher DOI: 10.1111/j.1095-8649.2010.02790.x
PMID: 21078016
Abstract: The study identified seasonal habitat use by endangered adult Sakhalin taimen, Hucho perryi and the environmental characteristics of their habitats (water depth, amount of riparian forest, and meandering sinuosity). Fifteen adult H. perryi with acoustic tags were tracked by towing an acoustic receiver with a canoe in the Bekanbeushi River system in eastern Hokkaido Island, Japan during each month from late April to late November 2008. Individuals mainly used midstream (shallower than downstream) habitats in all seasons. These locations were generally characterized by relatively dense riparian forests and high sinuosity, indicating the presence of pools. In spring, individuals used habitats with less riparian forest cover compared to mean value of the river channel. From spring to autumn, adult H. perryi selected limnologically complex habitats with meandering channels. From summer to autumn, individuals selected habitats with more riparian forest cover. The inverse relationship between H. perryi detection and riparian forest area in spring was a result of seasonal defoliation in deciduous riparian forests.
Rights: The definitive version is available at www.blackwellsynergy.com
Type: article (author version)
URI: http://hdl.handle.net/2115/50368
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 宮下 和士

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