Didn't work in one. But I happened to walk by a fish processing line. I'm sure glad someone else is doing that work. Sympathies!!

Portland Maine docks processing Shrimp and Lobster. I had to keep all you girls supplied.

I worked in Vancouver, WA in the mid 1970's in the Delmonte cannery during late spring and summer season. It was hard work for most who were their. I worked a lot of positions there. over a few seasons. It did not pay very well. But the people and the building was great. Glad it is part of my memory of things I got to do in my life time.

I'm guessing it's a gruelling job, and that's why it's mostly young people in that screenshot; who will do it for a bit, then move on.

Once worked in an oil cannery and it was a dirty dirty job

I can see my friends performing this...

I worked in a cannery and I was a slimed and then a grader. My family commercial fished in Bristol Bay and had a cabin there. Long long hours but an amazing experience.