For some reason, (mostly) dudes seem to believe potential partners will be seduced by their fishing capabilities as demonstrated through that one photo. You know the one. Where the dude is wearing those universal fisherman's sunglasses, holding up a somewhat large fish, with the proudest "I'm a hunter" smile on his face. Someone who thought about this way too much did the research and found the fish to have on your profile, if you must have one, is a hogfish.
But really, just skip it. Fishing is fun but, I'm sorry, it's not that impressive you tricked a primitive species into biting a hook that looks EXACTLY like its normal prey. Like wow, you really outsmarted that fish, an animal notorious for its cleverness. Swoon.
There are so many cooler things about you. Show those off. We'll go fishing later.