Most freshwater, warm-water fish species take advantage of summertime weed growth and shallow water structure to feed. I talk to many anglers that fish off shorelines and think that all the water is the same depth with little structure, especially when the water is turbid with little visibility.
In the screen-grab above you can see the rock-piles just off the main shoreline structure and a school of small fish above them. When I spot detail like this I fish it carefully and usually end up hooking fish!!
Because of the high-resolution of the Raymarine CHIRP DownVision I can clearly see the detail in shallow or deep water and even though I may fish the same shorlines that other anglers fished ahead of me, I have the confidence that I will see important bottom details that they may have missed and indeed catch fish!