Fish Traps

I'm looking into fish traps, and I'm curious as to where to place them? I have access to coastline with sand, as well as a river with both shallow and deep water. The wiki says, "Both the location and the bait seem to matter in how many and which fish you catch" - but doesn't go on to give any examples. The Haven and Hearth wiki gave a lot of examples as to which fish lived where and how to catch them, but there isn't much help in the Salem wiki.

Any advice on where to place my trap, and what to stock it with?
Also, should I place a claim over my trap(s)? Can you place a claim over water?
Thanks for all the advice!

Any advice on where to place my trap, and what to stock it with?
Also, should I place a claim over my trap(s)? Can you place a claim over water?
Thanks for all the advice!