"That's a big boy!" Fisherman in kayak reels in enormous catch

SANIBEL, FL -- A fisherman reels in a massive fish from his kayak!

In a YouTube video, fisherman Jon Black is seen in a kayak reeling in what looks to be like a pretty big catch. After a bit of struggling, Black is surprised with what he's caught, he screams in excitement.

"That's a big boy!" shouts a bystander.

Black caught a Giant Goliath Grouper, measuring in at 83 inches long and over 73 inches in girth -- putting an estimated weight at 552-pounds!

Watch the video here: