When I was 19 I worked almost a year as fisherman in the North Atlantic. First on a larger line-fisher being on the sea for 10-14 days at a time and later with a smaller ship where we went out in the very early morning 3-4 o'clock returned to harbour every night. And I am easily seasick too.
First day every time on the larger ship I puked all day - but I managed to work too, so my companions was not displeased with me. It can be hard to be on a boat with people who think you are a sluggard.
Hey buddy, I filmed fishermen on Kodiak island and also on a fishing vessel in North Pacific for 12 looong days :)
Another ocean but far North too. What were they fishing?