A yellow fin can be to 200 lbs plus, and a blue fin way over a 1000 pounds, and bring over 10,000 to 20,000 dollars for one blue fin tuna if handled right. You had to lay it down on just one side, the down side of the fish stayed that way to keep from bruising the meat on the top of the fish. In Japan they send out graders to inspect each fish individual, for freshness, bruising, then in a couple weeks you would get a check. I never saw one of those big checks, might kept me interested in long lining. I hated the thought of waiting for my catch to be graded, you were at the mercy of other people like a truck driver, people handling the fish to be graded. I liked off loading, weighing the catch and sharing out then.
I was up on the east coast back in the early 80's and heard of sport fishing boats catching giant blue fin tuna, with big pay days. Like George was saying off New York in one of those bays or sounds I think it was called. I felt that was the way to do it, one day of fuel, catch one, point the boat home, drink beer and off load your fish. Then head to a yacht club, with pretty ladies. Instead of 20 nights of bad weather, smelly fish, and a couple of diesel engines 24, 7 ringing away. Sword fishing really was a easy way to fish for a living, go let out a 18 to 20 mile trout line out at dusk, then wait till morning start picking it up. A good day it would take about 6 hours to pick it up, keep one guy cleaning fish, one man works the spool or winch, two people winning the drops and hook leaders. But then there was those days you caught a big turtle, or a group of big sharks that would bring 2 miles of gear together, in which looked look the worlds largest knot, full of hooks, floats and fish still hanging over the side. I saw one turtle that easy went 8 to 10 foot long and 4 foot high, make a mess that took weeks to clean up. About 2 1/2 miles of gear in a ball so tight we would cut the line about ever 20 yards on line to clean it up. Man were those days fun
One thing I forgot to say was when bring a sword fish on the boat, you had to cut the bill off as soon as it cleared the rail, if it hit the deck and started bunching around it could easy put the bill though you. Wish life was still this easy.