Robert J. Behnke
Robert J . Behnke ( December 30 , 1929 – September 13 , 2013 ) was an American fisheries biologist and conservationist who was recognized as a world authority on the classification of salmonid fishes . 
<triplet> Robert J. Behnke <subj> December 30, 1929 <obj> date of birth <subj> September 13, 2013 <obj> date of death