Welcome to the Eighth International Symposium on Aquatic Animal Health (ISAAH-8). Every four years, the American Fisheries Society – Fish Health Section expands its annual meeting by inviting international participation in the form of the ISAAH. Stemming from its inauguration as the International Fish Health Conference in Vancouver, BC (1988), the ISAAH has developed into a much-anticipated gathering of international fish health professionals. Host cities have primarily included US cities – Seattle (1994), Baltimore (1998), New Orleans (2002), San Francisco (2006), Tampa (2010) and Portland, Oregon in 2014. We are extremely pleased and proud to be hosting the International Fish Health Conference back in Canada this time on the beautiful East Coast! We look forward to hosting business and academia from across North America and overseas to discuss the current business and research developments, trends, and the future of the aquatic animal health industry. We hope you will join us.