Living 500,000 By Indy Staff Thu Aug 21, 2008 | 12:00am Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window) 500,000 The number of eggs a female mackerel lays at one time. Source: corsinet.com/trivia/a-triv.html. Add to Favorites