Calanus propinquus is a copepod found in Antarctica, and the surrounding waters.

[4] During this time, the population is mostly concentrated in the top 150 metres (490 ft) of the sea.

The next month, the population shifts, with stages I through III found from sea level to 25 metres (82 ft) in depth.

[3] In the Southern Hemisphere autumn, some stage III through V copepodites migrate to overwinter below depths of 200 metres (660 ft) (probably in diapause).

[2] Most of the accumulated lipids are triglycerides, contrasting with other calanoid copepods that primarily use wax esters.