oden_2006_underway

This project conducted a transect between Punta Arenas, Chile and McMurdo Station along the entire western Antarctic coastline, past Marguerite Bay, the Bellingshausen Sea, the Amundsen Sea and into the Ross Sea on the ice breaker Oden. We conducted underway measurements of primary and secondary production to establish a baseline for future cruises and as support for the marine mammal, sea bird and ice observations being conducted concurrently. We digitally sampled the underway seawater stream for temperature, salinity, total chlorophyll, pH, dissolved oxygen, CDOM fluorescence, nitrate, phosphate, iron, and zoo and phytoplankton. In addition, discrete samples were taken for total carbon, microplankton, and pigment structure by HPLC. The overall goal is to understand how the sea ice edge dynamics influence both primary and secondary production, particularly with respect to larval krill dynamics.