Dr. Brian Yamamoto is an avid hunter and fisherman.  In 2009, he landed the "unofficial" all tackle world record brown trout on the Rio Grande in Argentina.  Using a two handed spey rod and steelhead muddler minnow fly, he caught and released the estimated 41.5 pound sea run brown trout.  The fish appeared in 5 fishing magazines including Fish and Fly, Field and Stream,  Trout, and Fly Fisherman.