Black Crappie & White Crappie Cross Breeding at Weiss?

Has anyone else noticed that it appears that some of the crappie look as though they are cross breeding? Some of the fish have random spots but only have 6 dorsal spines and some have 7 or 8 dorsal spines with the White Crappie stripe patterns for their spots.

Any Biologists out there with any thoughts on this?

They do cross bred on Weiss and produce some beautiful fish. Happens on Neely Henry also.

The same is happening on Richard b. Russell, the way I see it.