from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun marine biology An underwater anoxic event, especially one that causes a crash in fish populations
  • noun Used other than as an idiom: see fish,‎ kill.


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  • The term fish kill, known also as fish die-off and (in Britain) as fish mortality, is a localized die-off of fish populations which may also be associated with more generalised mortality of aquatic life. (Wikipedia)

    January 15, 2012