The Yakama Nation is working to restore natural production of Pacific lamprey to a level that will provide robust species abundance, significant ecological contributions and meaningful harvest within the Yakama Nations Ceded Lands and in the Usual and Accustomed areas.
A major limiting factor affecting the healthy function of the watershed/habitat is the presence of an unscreened surface water diversion located on South Fork Simcoe Creek. There has been a continuous effort since 2009 to identify three unscreened surface diversions that need to be screened. The Smartlowit diversion was screened in 2010. The feeder ditch on South Fork Simcoe Creek is the second to be screened of the three identified diversions.
Dramatic declines in the abundance of anadromous Pacific salmonids have occurred over the last century in the Columbia River basin. Population declines followed harvest, hydrosystem and watershed development, habitat loss and degradation, and reduced survival in freshwater, estuary, and marine environments. These declines are accompanied by greatly reduced levels of natural production due to an array of anthropogenic factors.