Advanced research and innovation network Canarie Inc. announced Monday that its president, Guy Bujold, is stepping down for personal reasons. Chairman of the board Jim Roche will serve as president and CEO in the interim. Mark Whitmore, the previous chair, will serve temporarily in Roche’s position. The board has begun searching for a new president and CEO. Bujold will continue to serve the research network as a strategic advisor. Canarie is a non-profit corporation that links researchers on an ultra high-speed network.