This data set was acquired with a ship-based Navigation system during Laurence M. Gould expedition LMG0104 conducted in 2001 (Chief Scientist: Dr. William Fraser). These data files are of MGDS:Nav format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): SO GLOBEC:Seabird Ecology Using Obervations and Diet Samples, SO GLOBEC:Water-Column Phytoplankton Primary Productivity, SO GLOBEC:Krill Age and Dietary History, and SO GLOBEC:Krill Distribution, Physiology, and Predations; Copepod Prey Abundance, and funding was provided by NSF grant(s): ANT99-10043 and ANT99-10100.