...The Pacific halibut is the world's largest flatfish. The IGFA record was apparently broken off the waters of Norway in July 2013 by a 515-pound 8.6 foot fish. This is awaiting certification as of 2013. In July 2014, 76-year-old Jack McGuire caught a 482-pound Pacific halibut in Glacier Bay, Alaska (this is, however, discounted from records because it was shot to prevent injury to those on the boat)...