Incheon City in South Korea has released 250,000 young croakers into the waters around Yeonpyeong Island, with the aim of restoring Korea's three major croaker species. The young croakers were reared for 96 days and were tested for infectious diseases before release. The city plans to continue research and production of high-quality croakers. The release site is also using the waste heat from thermal power plant cooling water to reduce fuel costs. This initiative is part of larger efforts to restore declining sea life resources around Yeonpyeong Island, which were reduced by changes in the ocean and coastal modernization.