Palmer Station Long-Term Ecological Research (LTER) R/V Polar Duke Spring Cruise Data, August 1993

Data was collected during the Austral spring LTER time-series R/V Polar Duke cruise. Objectives included the following considerations: 1) ice processes - effect of ice on the ecosystem; 2) temporal variability - comparison of specific geographical locations occupied summer, fall and spring. 3) hypothesis testing - a) compare pre and post winter larval krill physiology, distribution and 'abundance' in two winters b) compare Adelie diet and condition after two winters 4) ice condition - explore whether ice west of the Antarctic Peninsula is uniform as ice is penetrated.