• Caption: Common Name: water fleas, Scientific Name: Order Cladocera, Magnification: 16x, Notes: also called Cladocerans as they are crustaceans in the order Cladocera. These are adult forms, not a larval stage, Scientist's Notes: Calanoid copepod, copepod nauplii, Polychaetes, Chaetoceros sp. (diatom colony), Location: Beneath the Golden Gate Bridge, San Francisco, California, Latitude: 37.82239565, Longitude: -122.48434066