Tadpole Madtom (Noturus gyrinus). Clam River (tributary of St. Croix River), Burnett County, WI. Captured in dip-net. Aug. 7, 2016. Shot in photo tank with 90mm macro. (Photo altered, cleaned and adjusted in Photoshop to blur background, remove suspended sand, etc. Color pretty much unaltered. I used a sanded piece of plexiglass as a background. It looked uniformly frosted to the naked eye, but macro view shows individual scratches. Back to the drawing board on that.)
