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Conduct captive brood stock gene rescue program for Elwha River odd-year class pink three complete brood cycles for the fish (brood years 2011, 2013, and 2015) to avoid loss of fish due to spawning ground siltation during the removal of the Elwha dams. For each juvenile-to-adult group Manchester will receive juveniles in the winter of their first year of life (2012 for the 2011 brood, 2014 for 2013 brood, and 2016 for the 2015 brood). These will be reared in our seawater facility until they are two-year-old adults, and returned to the LEKT Elwha Hatchery for spawning in the fall of their 2nd year of life (2013 for the 2011 brood, 2015 for 2013 brood, and 2017 for the 2015 brood). Raw data on rearing density, loading density, water temperature, ration, and feed size may be available. Raw data on administration of therapeutic drugs may be available.