This is commercial "lift fishing" for tuna, probably off the Oregon or Washington Coast.
This is line-caught, selective-harvest tuna that comes with nearly zero by catch.
If you have ever wondered where tuna fish and cat food comes from, this it it, as the Del Monte video, seen below, makes clear.
If you watch carefully, you will see it's two men, and two poles on a single fish. This is not sport fishing!