In our second scientific publication you can read about the overwintering of Calanus finmarchicus. This small copepod migrates down to 800 m or more, and spends many months at this depth before coming to surface waters again!
We analyzed data from 11 winters in the Norwegian Sea and found that climatic changes in as far away as the Labrador Sea can determine how many copepods and herrings we can find in the Norwegian Sea.