Living 500,000 By Indy Staff Thu Aug 21, 2008 | 12:00am Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print Add independent.com on Google Add the SB Independent as your preferred source to see more of our stories on Google. 500,000 The number of eggs a female mackerel lays at one time. Source: corsinet.com/trivia/a-triv.html.