'개매기'란 밀물과 썰물의 차가 큰 바닷가에 그물을 쳐놓은 후 밀물 때 조류를 따라 들어온 물고기 떼가 썰물 때 그물에 갇히면 손으로 잡는 어업법이다.
"Gaemaegi" is a fishing method that catches fish by hand when a flock of fish, which followed the tide during the flowing tide, is trapped in a net during the ebb tide after netting on a beach where the difference between the tide and the ebb tide is large.