Having done both, I'd rather be a farmer than a fisherman in my community. Imagine catching fish with your bare hands or a flimsy net - yep, that hard.
My experience was on large highly mechanised trawlers in the North Sea - sleeping for two or three hours then gutting fish for a few hours then eat and sleep and repeat for best part of 5 days....
NB The "highly mechanised" part just adds to the fear factor - winches and other heavy equipment are scary enough at the best of times, but when the sea is rough, its dark they are (for me) terrifying.
Edit: Having done a bit of both (and a lot of family in both areas) I'd rather be a fisherman than a farmer and I really don't want to be a fisherman!