It's possible that this record could be broken (see pic below). There are Bluefins landed about every other season in Antigonish, Nova Scotia that dress out at a bit over 1300 pounds. These fish are larger than Ken Frasers world record caught out of Canso. 1,496 lbs.
And there are 1,000 pounders taken every year at PEI !!
Cover of the book by the IGFA Blue fin record holder
My body aches just looking