Are these air bubbles? They're all at the same upward angle. Any ideas on the stacked arcs on the left side?


Here's a downview/traditional combo of the stack:


Pretty sure these are crappie on a hump. My friend and I caught a few:


Another hump in the area:


These can't all be fish, can they?


I'm still pretty new at this, thanks for any help you can provide!