Artemia is a genus of aquatic crustaceans known as brine shrimp.  The ability of the Artemia to produce dormant eggs, known as cysts, has led to extensive use of Artemia in aquaculture.

The cysts may be stored for long periods and hatched on demand to provide a convenient form of live feed for larval fish and crustaceans.  Nauplii of the brine shrimp Artemia constitute the most widely used food item, and over 2000 tonnes of dry Artemiacysts are marketed worldwide annually.