Hood Canal summer chum salmon

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Chronology

  • 1980-1994 - Populations severely depressed
  • 1999 - HCSR chum salmon listed under the ESA
  • 2004-06 - Hatchery supplementation winds down as part of recovery planning.
  • 2012-17 - Populations rebound with reduction of hatchery production and curtailment of harvest
  • 2018-19 - Returns crash, attributed to "The Blob" and ocean conditions.

Notes

  • File:Tuohy et al. 2018 chum non-natal habitat use.pdf - provides a summary and assessment of nearshore use differentiating between summer and fall chum.
    • Summer chum show high use of embayment habitats, as much as in river deltas
    • Prioritizing restoration sites in proximity to natal streams may not provide greater benefit for summer chum in Hood Canal, given rapid distribution and broad use of nearshore habitat.

Chart using WDFW SCORE data showing record of summmer chum salmon escapement in three rivers.