海洋理工学会誌
Online ISSN : 2188-3262
Print ISSN : 1341-2752
ISSN-L : 1341-2752
原著
超音波バイオテレメトリーを用いた魚類の群れ行動観測に向けた位相変調方式コード化ピンガーの複数同時識別
高木 淳一市川 光太郎荒井 修亮宮本 佳則内田 圭一藤岡 紘福田 漠生小路 淳三田村 啓理
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2016 年 22 巻 2 号 p. 5-9

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Multiple signals must be identified from different fish simultaneously to observe group behavior using acoustic biotelemetry. We demonstrated simultaneous identification of multiple signals using a new phase modulation-coded telemetry system. We deployed eight transmitters with a 1.28-s signal transmitting interval at the same location, and two receivers that were 18.5 m and 38.0 m away from the transmitters. The detection rates of the two receivers during 15 min of recording were 77.0% and 73.0%. These results show that multiple signals from several transmitters were detected simultaneously by the receivers and were discriminated at high resolution (<2 s). This new telemetry system will be useful in studies on fish schooling behavior, aggregation, and predator-prey interactions.

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© 2016 海洋理工学会
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