Development of Data Logger Separator for Bio-Logging of Wild Seabirds

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  • Abe Takuma
    Department of Mechanical Systems Engineering, Yamagata University
  • Kubo Natsumi
    Department of Mechanical Systems Engineering, Yamagata University
  • Abe Kazuki
    Department of Mechanical Systems Engineering, Yamagata University
  • Suzuki Hirokazu
    Graduate School of Environmental Studies, Nagoya University
  • Mizutani Yuichi
    Graduate School of Environmental Studies, Nagoya University
  • Yoda Ken
    Graduate School of Environmental Studies, Nagoya University
  • Tadakuma Riichiro
    Department of Mechanical Systems Engineering, Yamagata University
  • Tsumaki Yuichi
    Department of Mechanical Systems Engineering, Yamagata University

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<p>The bio-logging technique is extensively used in the fields of ecology and ethology, wherein a data logger, such as a sensor or camera, is attached to the target animal’s body to collect the required data. In this method, the efficiency of recovery of the data logger is not ideal. In this study, we proposed a new recovery method, with the aim of addressing the aforementioned problem in bio-logging. The authors previously fabricated a data-logger separator, which weighed approximately 10 g, and was targeted at small seabirds. Because there were some problems associated with the circuit board and the separation performance of this device, we modified the device to overcome the previous drawbacks. We fabricated a flexible printed circuit to improve the operation of the mounted actuator and wireless microcomputer, and improve the efficiency of the fabrication process. We conducted an experiment to determine the proper length and position at which the actuator is attached, in order to achieve a stable motion. We thus fabricated a new prototype with these improvements and performed an operational test at low temperatures from a particular distance, simulating actual usage in a natural environment. The results demonstrated that separation occurred without failure, thus indicating that the separator can be efficiently used in practical environment.</p>

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