Meaning of overfish

o•ver•fish

Pronunciation: (ō"vur-fish'), [key]
— v.t.
  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.
—v.i.
  1. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.