DESCRIPTION
Sound Salmon Solutions (formerly Stilly-Snohomish Fisheries Enhancement Task Force) and partners worked with community members to restore salmon habitat along the South Fork and North Fork Stillaguamish River. With an average of 7% of the historic population returning each year, Stillaguamish River Chinook are highly threatened of becoming extinct. Currently, aquatic and riparian habitat in these waterways is degraded. Lack of tree cover and the spread of invasive weeds have contributed to high water temperatures, excessive sedimentation, reduced food supply, and loss of instream cover, all of which harm salmon. Knotweed, a non-native plant, is invading the project area, creating dense monocultures and crowding out native vegetation. Knotweed regenerates from severed roots and stems, spreading easily downstream with high flows. To help restore salmon habitat The Stillaguamish Knotweed Control and Riparian Restoration Project performed knotweed control and restored native vegetation.
Sound Salmon Solutions (SSS) and Snohomish County Noxious Weed Control Board (SCNWCB) worked with private and public landowners to control knotweed on their property and complete riparian plantings. By decreasing knotweed presence and increasing native vegetation along the North Fork and South Fork Stillaguamish SSS and SCNWCB improved salmon habitat by increasing shade, increasing leaf and wood input, and improving bank stability.