 Ph.D., Shinshu University, Environmental System, Japan, 2003.3  M.S., Pusan National University, Department of Biology, Korea, 2000.2  B.S, Pusan National University, Department of Biology, Korea, 1998.2

 Associate Professor, Kyung Hee University, Korea, 2014 - present  Assistant Professor, Kyung Hee University, Korea, 2010 – 2014  Research Professor, Ehime University, Japan, 2008 - 2010

 S.W. Hwang, D.I. Seo, J.D. Yoon, J.H. Kim, S.H. Park, M.H. Jang, and K.H. Chang, 2017, "Changes in particulate organic matters and plankton populations in nature-like fishways: role of nature-like fish ways in water treatment," Knowl. Manag. Aquat. Ecosyst., 418, 2.  H.J. Oh, H.G. Jeong, G.S. Nam, Y. Oda, W. Dai, E.H. Lee, D.S. Kong, S.J. Hwang, and K.H. Chang, 2017, "Comparison of taxon-based and trophi-based response patterns of rotifer community to water quality: applicability of the rotifer functional group as an indicator of water quality," Animal Cells and Systems, http://dx.doi.org/10.1080/19768354.2017.1292952

 Associate Editor, Korean Journal of Ecology and Environment, 2014 - present  Editorial Board, Journal of Korean Society on Water Environment, 2014 - present  Environmental monitoring project in Saemangeum area, Ministry of Environment, 2012.04-present  The improvement of mid-long term aquatic ecosystem monitoring on weir section, National Institute of Environmental Sciences, 2015

Aquatic ecosystem structure & function analyses Biological interactions and application to water quality and ecosystem management Biological & ecological indicator