Shouka was born in Marineland Antibes in France, and was moved to Six Flags World of Adventure (in Ohio) in May 2002. She was moved again to Six Flags Discovery Kingdom in April 2004. Shouka was mostly alone in Six Flags Discovery Kingdom, but she had a few dolphins with her for a few years but they were moved out in 2012 so she had no cetacean companions for a while. She was moved by Marineland to SeaWorld California in August 2012.
By the way - sorry if some of this info is incorrect, I did the best I could!