My first paper, published in September 2018 in Limnology and Oceanography, analyzed differences in individual krill movement behaviors and krill vertical distributions in late spring and autumn along the Western Antarctic Peninsula.

There was a difference in their movement behaviors and vertical distributions between the two seasons. There were greater abundances of krill near the surface of the water column in late spring and greater abundances near the sediment in late autumn. Krill also moved faster in late spring and more slowly in autumn.

We also found krill vertical distributions in late autumn were influenced by whether it was night or day. Krill were found deeper during the day and shallower at night.

Krill movement behaviors also showed a diel pattern, although this was not consistent between seasons. In late spring, krill moved more quickly at night and more slowly during the day. In late autumn, krill moved more quickly during the day and more slowly at night.

Combined, the differences in vertical distributions and motility suggest krill were feeding on phytoplankton in late spring and on detritus in the sediment in late autumn.

Here is the URL to access the paper: https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.1002/lno.11024