The bay anchovy is a small, translucent fish that lives in schools throughout the Chesapeake Bay. It is the most abundant fish in the Bay. Bay anchovies are slender with a silvery-green, translucent body and silver stripe along the sides. They have a large mouth, single dorsal fin on the back, a forked tail fin and grow to four inches. Bay anchovies feed mostly on zooplankton, such as fish larvae and are an a critically important food source for larger predators such as bluefish, seatrout and striped bass.