from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To fish (a body of water) to such a degree as to upset the ecological balance or cause depletion of living creatures.
- intransitive v. To fish a body of water so extensively as to exhaust the supply of fish or shellfish.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To fish excessively.
- v. To fish in excess so as to substantially reduce over several years the supply of one or more species of fish in an area.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To fish to excess.
- transitive v. To fish so much that the numbers of fish remaining are substantially reduced.
from The Century Dictionary and Cyclopedia
- To fish too much or to excess; fish so as unduly to diminish the stock or supply of: as, to over-fish a pond.
over- + fish (Wiktionary)