1984 Yakima Basin Bull Trout Survey

Various streams in the upper Yakima Basin have been surveyed for the presence of bull trout Bull trout (Salvelinus confluentus) and numbers of redds since 1984. A wide variety of habitat and behavioral information has been observed and recorded from each day's survey. These were  recorded in a variety of formats ranging from informal one page summary reports to daily notes recorded in a field notebook. Habitat information such as water temperatures, water flow, as well as significant geomorphic changes such as landslides are documented. These notes represent a rich resource for documenting habitat fluctuations over a wide time span in the Yakima Basin.

PDFs of each year's field notes or summary tables are available from the Washington Department of Fish & Wildlife (Fish Management Division).  For further information contact WDFW district fish biologist Eric Anderson 509-457-9301 or Greg Lippert (Information Tech Specialist) 360-902-2798.