Lee Yoonsang, Researcher, Jeju-si, South Korea, Reno Kyu-Young Choi, NIMS National Institute for Mathematical Sciences, Seogwipo, South Korea, Ki-hoon Kim, Researcher, Seogwipo, South Korea, Sung-Hwa Park, Inha University, Ocean sciences, Incheon, South Korea, Ho-Jin Nam, Researcher, Boseong-eup, South Korea and Seung-Bum Kim, Researcher, Seogwipo-Si, South Korea