verb (used with object) 1.to
fish (an area) excessively; to exhaust the supply of usable
fish in (certain waters):
Scientists are concerned that fishing boats may overfish our coastal waters.
verb (used without object) 2.to
fish so as to deplete the supply of
fish in certain waters:
If the trawlers are going to overfish here, we'll need legislation to restrict their hauls.