Petty Officer 2nd Class Kevin Lekich, a boatswain's mate aboard Coast Guard Cutter Healy, prepares to retrieve a deployed rosette device designed to collect water samples Aug. 23, 2015. Healy is underway in the Arctic Ocean in support of Geotraces, an international effort to study the distribution of trace elements in the world's oceans. (U.S. Coast Guard photo by Petty Officer 2nd Class Cory J. Mendenhall)