Looks like you did, and you certainly found some good sized schools of Shad (if those are not massive schools of "fish"). Determining the species can be a bit tricky, though.

I'm wondering, though, why you chose b/w (inverse greyscale) for your image color palette ?? White specks (fish/shad) over a white bottom contour are going to be hard to see (if not impossible to see) under certain conditions. Most seem to prefer the brown tones.

I'm running a Lowrance DI ... and after checking out several of its color palettes, settled on the blue gradient. It just seemed easier on the eyes, while still giving a good image.

... cp