2024-03-29T00:16:37Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/503682022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157Riverine environmental characteristics and seasonal habitat use by adult Sakhalin taimen Hucho perryiHonda, K.Kagiwada, H.Tojo, N.1000070301877Miyashita, K.open accessThe definitive version is available at www.blackwellsynergy.comAcoustic telemetryBekanbeushi RiverEndangered speciesRiver environmental characteristicsHucho. perryiSeasonal habitat663The 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.Blackwell Publishing2010-11engjournal articleAMhttp://hdl.handle.net/2115/50368https://doi.org/10.1111/j.1095-8649.2010.02790.x210780160022-1112Journal of Fish Biology77715261541https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/50368/3/JFB77-7_1526-1541.pdfapplication/pdf1.08 MB2010-11