Jeremy, you're right and it is more easily seen in the squashed jpeg/sharpening algorithm I use. I missed it, but will try Slobodan's trick of applying negative clarity to see if I can eliminate it. BTW, I wasn't trying to lighten it, I was trying to keep it from being softened by the noise reduction filter I used on the water.
MODIFICATION: Yes, the Blagojevic effect works! Minus 100 clarity with the adjustment brush tool, but it took two of them.