1Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan.
2Marine Biology and Cetacean Research Center, National Cheng Kung University, Tainan 701, Taiwan.
3Department of Electrical Engineering, Far East University, Tainan 744, Taiwan.
4Department of Environmental Engineering, Kun Shan University of Technology, Tainan 710, Taiwan.
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