Louisiana is the biggest producer of crayfish in the world. They own 98 percent of crayfish supply in the United States.
Louisiana
he is a site that may help you found what you are looking for http://en.wikipedia.org/wiki/Crayfish
There are five native species of crayfishes in Nebraska. These include the Northern crayfish (Orconectes virilis), Papershell crayfish (Orconectes immunis), Ringed crayfish (Orconectes neglectus neglectus), Devil crayfish (Cambarus diogenes), and Grassland crayfish (Procambarus gracilis). The Northern crayfish is found statewide. The Papershell crayfish is primarily in the eastern and northern portions of the state, being rare in the Republican and Blue River basins. The Ringed crayfish is found in the western 2/3 of the state. Devil crayfish are found in the east and north. The range of the Grassland crayfish is not well defined but is in the southeast corner of the state. In addition, Rusty crayfish (Orconectes rusticus) were recently found in a couple of lakes in the metro-Omaha area.
Lousianna
Current thinking places it at between 50 to 85 percent, depending on time of year and the state of phytoplankton bloom.
Worlds End State Park was created in 1932.
The worlds longest river, the Nile, is in Africa
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