: Cyclops strenuus.

Cyclops strenuus is most abundant in early spring or late autumn, and may occur both in ponds with extremely high loads of nutrients as well as in the littoral of large lakes. It generally has a light yellow or orange colour.

Cyclops strenuus Fischer, 1851
Creative Commons Attribution | Bjørn Walseng | Norsk institutt for naturforskning
Kart. Utbredelse i Norge.