a placeable villager that doesn't move. He offers rewards for different size of fish caught.
Fish caught by players has varying weights.
He also keeps track of the player that has caught the biggest fish!
Fish can also be utilized in the crafting window to provide more fish.
So if you catch a fish that is 15lbs, it will provide 3 raw fish into your inventory. 10lbs fish will provide 2 raw fish etc.