Definition of "sungranny"

That seems almost impossible to those us who grew up on sungranny fishing that resulted in […]

1970 June 21, The Corbin Sunday Times, page 4

He remembered turning over the flat rocks in the shallows to catch crawdads, remembered the sungrannies and redeyes around the ends of trees fallen into the river.

1994, John Ed Pearce, Days of Darkness: The Feuds of Eastern Kentucky, Lexington, KY: University Press of Kentucky, page 151