This research is about the monitoring of people\'s consciousness on ecosystem change after coastal
restoration project in Gangjin Bay. Tidal flat ecosystem of Ganjin Bay was major producing district of short-necked
clam in Jeonnam Province. Owing to coastal restoration project (sand gathering and dredging) during 5 years,
however, ecosystem was disturbed and harvesting of fish was decreased. Although a few of ark shell and oyster are
harvested but drastically decreased. Even aging and depopulation is general situation like other rural regions, life
pattern of villages and depopulation in Gangjin Bay was influenced by drastic decreasing of income. As the results
of social monitoring, drastic decreasing of fish and shell in Gangjin Bay is significantly concerned with coastal
restoration project (sand gathering and dredging) and also with difficulty of fresh-water inflow to coastal bay
because of Jangheung Dam. In order to get the detail information on the cause and consequence of ecosystem
change in tidal flat, it is necessary to apply the long-term socio-economic monitoring as well as biological and
ecosystem monitoring.
Keywords : Gangjin Bay, coastal restoration, ecosystem change, local resident\'s consciousness