Tuesday, February 16, 2010

Study Finds High Early Marine Mortality in Steelhead Smolts


A study published recently by researchers at Oregon State University tagged outmigrating juvenile steelhead and found that nearly half of tagged individuals died during the transition to the marine environment. The early marine period has long been thought limit future returns, however research exploring early marine survival in salmonids is only now becoming commonplace. Next is understanding what causes elevated mortality, and how human activities may effect estuary and nearshore conditions encountered by juvenile steelhead and salmon. See the study at the Columbia Basin Bulletin:

http://www.cbbulletin.com/376646.aspx

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