First documentation of detailed behaviors of endangered adult Sakhalin taimen Parahucho perryi in the Bekanbeushi River system, eastern Hokkaido, Japan, using bio-logging and acoustic telemetry concurrently
2017
Honda, K. (Hokkaido University, Hokkaido (Japan). Field Science Center for Northern Biosphere) | Takahashi, N. | Yamamoto, K. | Kagiwada, H. | Tsuda, Y. | Mitani, Y. | Miyashita, K.
Behavior of adult Parahucho perryi was examined using bio-logging and acoustic telemetry concurrently in the Bekanbeushi River system, eastern Hokkaido, Japan, in 2009 and 2010. Based on 46.1-87.9 h data from five P. perryi (69.0-80.0 cm fork length) caught from Lake Akkeshi, they used upstream (n = 2), midstream (n = 3), and downstream (n = 4) habitats. Large variability in diel activity and depth occupation existed in each stream habitat; however, fish in the downstream habitat tended to be more active than those in the upper habitats and mainly occupied shallower depths than mean bottom depth in this habitat.
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