Lepomis cyanellus

Green sunfish are a freshwater fish in the sunfish family. It is a panfish popular with fishermen and also kept by hobbyists. It is said that they have polarization sensitive vision not found in humans and other vertebrates which helps in enhancement of visibility of target objects. They are considered an invasive species in Florida and New Jersey. They are illegal to possess without a valid permit on research or exhibition by public agendies. The sunfish is blue-green in color with yellow flecks on its back and sides. The gill and head have broken blue stripes. The Dorsal fin has about ten spines. It is about seven inches long and weighs less than a pound.