Maine’s highest court has ruled that a Harpswell woman does not have the right to keep exotic fish at her home. The Supreme Judicial Court backed a lower court ruling and said this week that state wildlife officials were correct in denying Georgette Curran a permit to keep koi. Maine considers the fish, which is native to Japan, an invasive species. Curran, 66, had a permit that expired in April 2012, then got a restricted permit in July 2012 while her legal challenge was pending. The court did not specify what Curran should do with her fish or give her a deadline for getting rid of them, but she has vowed to keep them.