On a similar tangent about fishing, search "Gloucester, Massachusetts," you'll eventually get to the Gloucester fisherman's memorial, then take a good look at it. The sheer number of fatalities, even with modern safety equipment, is amazing.
Or try reading the book "The Hungry Ocean," by Linda Greenlaw, a former swordboat captain. Really illustrates the risks involved in longline fishing; slippery decks, fog, sleep deprivation (four hours or less a night), bad weather, and sharp fishing hooks a good eight inches long continuously reeling off the back of the boat.
Then, of course, king crab fishing has a whole different set of hazards; ice, mainly; sea spray freezing on the decks and rigging can sometimes get heavy enough to capsize the whole fishing boat, and I imagine its slippery as hell, the usual bad weather and fog (valuable fish always seem to live in the most dangerous areas), and the crab nets, big cages large enough to fit several people, swinging around at chest level as the fishermen try to stuff bait in them while not falling overboard.
(with this recent cold weather, I saw a story on the news where a New Bedford trawler went out fishing; it got so ice coated that the crew had to be chipping at the ice 24 hours a day just to keep her from capsizing. The pilot house was frozen in and the skipper had to drive the ship in by radar, with a lookout on the bow shouting exactly where to steer the boat. The crew said they were going out again in a few days.)
And yeah, weather out there can get pretty bad; 500+ foot long container ships often suffer severe structural damage and sometimes sink, in during long voyages. The one most recent in my memory is was, I believe, called the CONTSHIP HOLLAND; 552(?) feet long. It sunk with all hands lost in the North Atlantic during a winter crossing.
The sea isn't anything to be messed around with, my friends.