Summary
Morphological index suggests that shrinkage is not a
significant overwintering strategy for krill collected in
Marguerite Bay. (lipofuscin calibration forthcoming).
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.
Lipid class and individual composition suggest E. superba
is less dependent on lipid stores than E. crystallorophias in
winter.