Data overview

2002 survey: June 10 - July 12, 2002, Thalassa

2004 survey: June 4 - July 7, 2004, Thalassa

2006 survey: May 21 - June 28, 2006, M.S. Merian

2008 survey: June 10 - July 10, 2008, Thalassa

2010 survey: June 8 - July 7, 2010, Thalassa 

2012 survey: June 22 - AUgust 12, 2012, Sarmiento de Gamboa