On the 4 bigger fish, just judging the shadow, I would say that they weren't catfish or carp since they appear to be somewhere up in the water column. Maybe bass?
The ball of fish could be shad, but I would definately try fishing there and see what happens.
The second pic looks like a buncha fish on some brush on the left hand side. On down the pic looks like fish stacked on a little drop off. Is that the fish shadows off to the right? On the upper part of that ledge on the right looks like a couple of man-made objects. I would sure like to see those pics on a big screen.
You did good with the pics and sonar recording.
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