Here are a couple of Dolomedes species:
True wolf spiders (Lycosidae) are a bit furrier and have the eyes arranged in a distinctive pattern: the four anterior eyes are in a straight row, while the larger posterior eyes are arranged in a quadrangle. Dolomedes and other pisaurids have two slightly curved rows of four eyes each (you can see it pretty well in the second picture).
Sorry for the tangent, I'll let you get back to fish now!
The second photo looks similar to a common one I was catching, except that the brown on the ones I caught was darker - almost a black, and the white abdominal band was more.. ventral, I guess, closer to the top of the abdomen and less around the side.
And that first photo looks a lot like the very common spiders we find all over Georgia, many of which were in (well, around and near, anyway) the creek as well.