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Green sunfish
The green sunfish (''Lepomis cyanellus'') is a species of freshwater fish in the sunfish family (Centrarchidae) of order Perciformes. A panfish popular with anglers, the green sunfish is also kept as an aquarium fish by hobbyists. They are usually caught by accident, while fishing for other game fish. Green sunfish can be caught with live bait such as nightcrawlers, waxworms, and mealworms. Grocery store baits such as pieces of hot dog or corn kernels can even catch fish. Small lures have been known to occasionally catch green sunfish. They can be caught with fly fishing tackle.
The green sunfish is said to have polarization sensitive vision not found in humans and other vertebrates mostly which helps in enhancement of visibility of target objects in scattering media, using a method called polarization difference imaging. The green Sunfish is considered an invasive species in the state of Florida. They are illegal to possess without a valid permit on research or exhibition by a public agency such as an aquarium or research facility.
==Geographic distribution==
The green sunfish is native to a wide area of North America east of the Rocky Mountains, from the Hudson Bay basin in Canada, to the Gulf Coast in the United States, and northern Mexico. They are specifically indigenous to a number of lakes and rivers such as the Great Lakes and some of the basins of the Mississippi River. Green sunfish have been introduced to many bodies of water all across the United States, so are frequently encountered. 〔(Page et al. 1991, p. 267).〕 ''L. cyanellus'' has been transplanted to many countries in Africa, Asia, and Europe, where it has become established in some.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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