Concerns and sighs are deepening among the fishermen who raise eels, a representative species of domestic aquaculture. The sense of crisis in the industry, which has a market size of approximately 700 billion to 1 trillion won annually, has increased due to a significant rise in production. The freshwater eel industry, which imports natural seeds to raise them, faces severe price fluctuations depending on the supply and demand of seeds, making it difficult to operate the farms. When seeds are scarce, there are difficulties in purchasing them, and when production increases, prices drop, and when consumption increases, income often rises. Despite being the only aquatic product subject to a mandatory listing system, the operation of the farms remains unstable.