Originally Posted by Don Broeren
Looks like a pretty soft bottom, probably sand, quite a few fish from 15-40 ft, my guess would be shad but they could really be anything. Were you watching your jigs on the sonar? If so, were the fish responding to your jig at all?
True, Shad or Carp would be my guess. As Don said, the thinner bottom line suggests a softer bottom. The blue stuff that goes up to 10 feet off bottom, could be small bait fish. Did you see that at other locations? If you didn't, then the blue might be small shad, and then the arches could be wipers...
Or, the blue stuff could be run off water that is a little colder (more dense) than the surface water, carrying runoff sediment. Most of the arches are above the blue... hummm.
It would take a lot of images to really build a better picture, in the end its usually just a guess. well, unless you have a camera like Zman.