A rendering of the proposed fish farm in Jonesport. Courtesy of Kingfish Maine.JONESPORT — The Planning Board has scheduled a public hearing to consider changes to the town’s Shoreland Zoning Ordinance that would give Kingfish Maine an additional 30 months to make a “substantial start” on its proposed $110 million aquaculture facility on Chandler Bay. The hearing is set for 6 p.m. Wednesday, July 8, at Jonesport Elementary School. Planning Board…