Mudpuppy

Study aims to shed light on reclusive mudpuppy

(Iowa DNR)Guttenberg, Iowa — Kevin Hanson had to throttle back his heavy flat-bottomed aluminum boat as he began to break up a thin layer of ice that had formed overnight on the slack water in Pool 11 of the Upper Mississippi River. Hanson, fisheries technician with the Iowa Department of Natural Resources (DNR) Guttenberg station, was on his last run…