Directed movements and diel burrow fidelity patterns of red tilefish Branchiostegus japonicus determined using ultrasonic telemetry |
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| Authors: | Hiromichi?Mitamura mailto:mitamura@bre.soc.i.kyoto-u.ac.jp" title=" mitamura@bre.soc.i.kyoto-u.ac.jp" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Nobuaki?Arai,Yasushi?Mitsunaga,Takashi?Yokota,Hiroyuki?Takeuchi,Tatsuo?Tsuzaki,Masashi?Itani |
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| Affiliation: | Graduate School of Informatics, Kyoto University, Kyoto 606-8501,;Faculty of Agriculture, Kinki University, Nara 631-8505,;Miyazu Station, National Center for Stock Enhancement, FRA, Kyoto 626-0052, and;Department of Fisheries and Oceanography, Kyoto Institute of Oceanic and Fishery Science, Kyoto 626-0052, Japan |
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| Abstract: | ![]()
ABSTRACT: Wild red tilefish Branchiostegus japonicus were tracked and/or monitored for up to nearly 3 months in Western Wakasa Bay and Maizuru Bay, Japan, using ultrasonic telemetry to examine their movements and burrow fidelity patterns. In Western Wakasa Bay, it is guessed that fish released in relatively shallow waters, about 30 m deep, actively moved into more suitable deeper habitats after their release. In Maizuru Bay, the fish did not undertake large-scale movements and showed burrow fidelity about 1 month after their release. That is, the fish primarily remained in the burrow, which was constructed in the sea-bottom, during the night and moved outside the burrow during the day. The marked circadian rhythm from Fourier analysis indicated a clear diel movement pattern of the red tilefish. |
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| Keywords: | burrow fidelity diel movement red tilefish ultrasonic telemetry |
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