Ongjin-gun, a city in Incheon, South Korea, has released 220,000 juvenile black rockfish into the sea from Daecheongdo Seonjinpo Port. These fish, which are over 6cm in length and disease-free, were produced by the Ongjin-gun Fisheries Seed Research Institute. This release is aimed at helping the fishermen in the five West Sea Islands, who are currently facing a decline in fish resources and illegal fishing by Chinese boats. The city plans to continue this project to restore fishery resources and boost the income of fishermen.