Partial food web for the Chesapeake Bay estuary on the U.S. Atlantic coast. The sea nettle (Chrysaora quinquecirrha ) and juvenile striped bass (Morone saxatilis) are the main predators of fish larvae (bay anchovy and several other species). Note that sea nettles are secondary consumers (black arrows) when they eat zooplankton and tertiary consumers (red arrows) when they eat fish larvae, which are themselves secondary consumers of zooplankton. 1