This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP0801 conducted in 2008 (Chief Scientist: Dr. David Caron). These data files are of SHP format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): Cape Adare Long-term Mooring (CALM) and Collaborative Research:Do crustacean zooplankton play a pivotal role in structuring heterotrophic plankton communities., and funding was provided by NSF grant(s): ANT05-38148 and ANT05-42456.