K.  Kaschner, Schneider, B., Garilao, C., Kesner-Reyes, K., Rius-Barile, J., and Froese, R. (editors), ?2013 AquaMaps Environmental Dataset: Half-Degree Cells Authority File (HCAF). World Wide Web electronic publication, www.aquamaps.org/envdata/main.php, ver. 5, 08/2013?, 2013.