This, for example is a round-up of what is claimed to be the largest marine creatures ever caught. A brief excerpt:
Here we've got a legendary Pacific blue marlin, weighing in at 1,656 pounds, caught in 1984. This 17 foot marlin is the largest to ever have been caught in Kona, Hawaii, but only the second largest to have been caught by rod and reel. For two hours and 20 minutes, fishermen struggled to reel the beast in.