I'm not sure if these are freshwater shrimp, or another species with "shrimp" in its common name.
Branchiopoda is a class of crustaceans. It is the sister group to the remaining crustaceans, and comprises fairy shrimp, clam shrimp, Cladocera and Notostraca. They are mostly small, freshwater animals that feed on plankton and detritus, with the exception of the Cladocera, many of which are marine.
