This study was conducted by Lacey Gunther as part of her undergraduate research experience. Lacey participated in a NOAA Antarctic Marine Living Resources (AMLR) research cruise, led by Dr. Christian Reiss, to the northern Antarctic Peninsula region in August 2015. She collected samples of Antarctic krill, Euphausia superba, to analyze for gut pigment contents. Lacey's study will provide important information on the winter diet of Antarctic krill, something we currently know very little about. This work was conducted in collaboration with the NOAA AMLR Program and is funded in part through a fellowship to Lacey from the Oregon State University Undergraduate Research, Scholarship and the Arts (URSA) Engage Program and a donation from the G. Unger Vetlesen Foundation.