As part of the joint ecological research project in the Gyeongju National Park by the Korean Association of National Biodiversity on April 25 -27 2007, the fishes in the Gampo waters were investigated on April 26 2007. The Gampo waters shows typical characteristics of the East Sea. A total of 2326 fishes in 37 species were discovered during the investigation period. The most dominant species was Trachurus japonicus, migratory fish, representing 85.2% of the total. With new discoveries of 10 species that have not been seen in the Gampo water, more accurate long-term studies can be carried out using diverse fishing gears.