Adult Spawning Surveys

Spawning surveys are conducted for Chinook, coho, and chum salmon, steelhead, and lamprey. All surveys are coordinated with the Oregon Department of Fish and Wildlife (ODFW), Oregon Adult Salmonid Inventory & Sampling Project for consistency. Data collected includes the numbers of each species and redds. Bio-information includes length, sex, scale samples (to determine age), collect snouts on tagged (hatchery) fish, DNA (when requested), and other basin-specific projects. The surveys we do are:

  • Spring Chinook Float Surveys​​
  • Fall Chinook Walking Surveys
  • Fall Coho Walking Surveys
  • Winter Steelhead Float Surveys
  • Winter Steelhead Walking Surveys