Eurytemora affinis

Eurytemora affinis is a calanoid copepod in the family Temoridae.

E. affinis is commonly found in brackish and estuarine waters along with coastal freshwater systems. They are around 1.2 - 1.3mm in length on average and feed primarily on phytoplankton/algae as well as detritus and free floating ciliates. E. affinis, like all other copepods, are a major food source to secondary consumers and support the early foundation of many food webs.