It seems like the same story wherever I go. When talking to Resort owners they always comment that the most fish are caught by people off their docks. I've wondered about this and how it could be so. After some observation at one of the Fisherman's Cove Resort docks at Curlew Lake, Republic, WA I have come to a conclusion. It's so.
Most people bottom fish for Trout off these docks with something like Power Bait or Fire Bait with a sinker on their line followed by some leader and the baited hook. And since these baits float, the idea is to use enough leader for the bait to float just clear of the weeds on the bottom. Have you observed though what happens when one throws a piece of said bait in the water? It starts to "milk" releasing a visible cloud that spreads through the water surrounding the bait...a cloud of scent concentrated and spreading through the area and when one has a number of anglers on the dock using these baits, that scent cloud is going to linger in the area while at the same time spread out over a larger area and bingo! More fish are attracted to the area and the potential for catching goes up.
That is my theory...and I'm sticking to it.