While perhaps some are offshore oil rigs [1] - many are arrays of lights used to attract bait fish, phytoplankton, and squid [2] in order to increase commercial

While perhaps some are offshore oil rigs [1] - many are arrays of lights used to attract bait fish, phytoplankton, and squid [2] in order to increase commercial fishing yields. [1] http://blogs.airspacemag.com/pettit/2012/03/mar-del-fuego/ http://blogs.airspacemag.com/pettit/2012/03/mar-del-fuego/ [2] http://scienceblogs.com/startswithabang/2009/09/29/squids-and-light-pollution/ http://scienceblogs.com/startswithabang/2009/09/29/squids-an...