snapshots with my new 997 + a question

[CrappieCrazed]

Here are a few shots I took of a few creek mouths stacked with fish, another is a pic of what looks like a bunch of tires on the river bottom. My question is for SI owners that know what they are looking at. The third picture is of a tree or branch but just below it there are a handful of bright white flecks almost drifting out of the screen. Are those fish. They look as if they are pretty decent size fish. The reason why I ask is because I know that Bluecats are very structure oriented and I fish for them a bunch on the river but I didnt bring poles this day. Just went out to play with my new toys. Anyways hope everyone enjoys the shots and answers would be appreciated on the 3rd pic! By the way, finding bait fish is simply amazing with si. I found shad all over the place and would have never known they were there with out si. This is important when your a catfisherman that needs to find bait fresh every time out!