Fish Monitoring

Beginning in the summer of 2014 we have been documenting fish presence in tributaries of the mainstem Columbia within the Columbia River Gorge, using underwater video. The intent is to highlight the importance of these cold water habitats to juvenile salmon during the summer months, when mainstem Columbia River temperatures exceed the preferred range for these species. Since these streams are being utilized by fish, they are important for protection as well as restoration in areas where this might be applicable. We plan to expand coverage into the mainstem Columbia as well as downstream tributaries as time and resources allow.

To view video segments for different stream locations, please visit our Fish Observation map page