What am I looking at?

I have seen this same type of screen at a couple of lakes. This is in the bottom of a clear dredge cut.

Attachment 137062

The straight lines are what I am talking about.
Thanks for any ideas.

Ken

could be your lure going down and up

I didn't have a lure in the water at that time.

I know, if I want to see the bottom, all I need is Structure scan. It's just not in the budget right now.

Fish coming off the bottom.

Well that is one I hadn't thought of.

Air bubbles from the lake turning over.

Did you drop your anchor? I see mine when I drop it and raise it.

I believe is fish coming up as well.

I’m with Redge: air bubbles coming up from the bottom.

HB Greg, why do bubbles show up like that? Is it the gas? It's water, why does it show a return? Sorry don't mean to hijack the thread but it does pertain to the thread.