[Thought]

You can use non-organic items as bait to fish, however, after you catch a fish with the non-organic bait, it gets dropped under the ship and you can pick it back up if you get in the right position. The only disadvantage is that you need to be quick to pick the non-organic bait back up (it hurts the boat).

This is, I guess, a sort of exploit, not too helpfull, but it is there.