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Jon Hess
(503) 731-1307

Employee since: 2009

Senior Fisheries Geneticist

Fishery Science Department
Portland Main Office


My research focuses on applying two main analytical approaches, genetic stock identification and parentage based tagging, to inform the management of hatchery- and natural-origin populations of Chinook salmon and steelhead in the Columbia River Basin. In addition, I am pursuing a wide range of population genomics research topics related to understanding the genetic basis of fitness traits in salmonids and Pacific lamprey. I am a father of two lovely girls and enjoy biking with them to school, watching them explore their worlds, and adventuring as a family in the Pacific Northwest which balances the scientific portion of my life.


  • Ph.D., Population biology, Washington University St. Louis, 2004
  • B.S., Biology, Denison University, 1998

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