My uncle, and an ex used to like fishing. I can take it or leave it. Does seem boring. Not sure if it would put me off a guy if I was single though. DH is an amateur fishkeeper, which is a different kettle of fish (pun intended).
The reason I ask is because there is that 'girls is players too' Tinder advert that keeps coming up. The 'lucky' man's profile says "the only fish you'll see in my hand is sushi" before he's selected. Also I have seen comments on discussions about off-putting men on OLD. One thing that apparently puts people off is men holding fish.