Ø Morphological index suggests that shrinkage
is not a significant overwintering strategy for krill collected in Marguerite Bay. (lipofuscin calibration forthcoming).
Ø Lipid class and individual composition
suggest E. superba is less dependent on lipid stores than E. crystallorophias in winter.
Ø Lipid analysis suggest (and stomach contents
confirm) that sub-adult and adult E. superba are omnivorous in winter, but larvae feed on sea-ice associated
organisms and phytoplankton.