[SanchoP]

I’ve never heard of a harpoon on a charter boat. I’m guessing a talking head doesn’t know the difference between a harpoon and a flying gaff.

[Roccus]

At 19 second mark of video from post #7 you can see harpoon being used.

[woodbutcher1963]

The tuna fishermen up in New England call it a harpoon too.

It is like a gaff with a point on the end, just to get another line in the fish until you can get it up against the boat to put a rope around its tail.
The last thing you want to do is lose a fish when its 10’ from the boat that you have been fighting for 2-3 hours.

[Roccus]

I also noted that they fought fish from rod holder...not sure that is IGFA legal either.

PS...when they’re hauling it on board you can see the dart next to the dorsal.

[Ol' Dan Tucker]

I’m guessing a talking head doesn’t know the difference between a harpoon and a flying gaff.

Did you read the skipper's own account?

He called it a harpoon, too.