Last updated: July 9, 2021
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Restoring Coho and Steelhead Habitat at Point Reyes National Seashore
NPS
June 30, 2021 - Riparian ecosystems have a vital role in performing functions that are essential for coho salmon and steelhead trout and other native wildlife. Often referred to as the “green ribbon of life,” the riparian zone is the vegetation connecting aquatic ecosystems and drier land above. Riparian forests act as nature’s filtering system, working to keep out pollutants from urban runoff. The forest also reduces erosion because trees and root systems hold soil in place to help stabilize banks. Endangered salmon reap numerous benefits from a well-forested riparian zone. Trees along the creeksides cool water temperature by providing shade. Fallen trees contribute large woody debris which form new pools and provide shelter for juvenile coho and steelhead. A properly functioning riparian ecosystem is necessary for stream health and ultimately assists these fish species in spawning and survival.
The San Francisco Bay Area I&M Network salmonid monitoring team is currently performing vegetation assessments on the riparian zones within the Lagunitas Watershed. This includes following up on restoration projects from the past decades in Olema creek and its tributaries. Previous restoration sites focused on native species plantings, invasive plant removal, cattle exclusion fencing, and erosion control. During each site assessment, the crew evaluates progress within the riparian zone and determines if further action such as native plantings and invasive plant removal are necessary to improve conditions. Photo documentation of these sites offers useful insight into how riparian cover has changed in conjunction with erosion control measures.
Each year, Watershed Stewards Program (WSP) corps members also organize a Watershed Awareness Volunteer Event (WAVE) to help restore the riparian corridor. For this year’s WAVE, Samantha Kuglen organized an event with the California Conservation Corps to uproot invasive French broom (Genista monspessulana) at Randall Trailhead in Point Reyes National Seashore. French broom is an invasive plant that can be found throughout the seashore. Removal of French broom and other invasive plants will provide space for the recruitment and propagation of native species.
A program of the California Conservation Corps, WSP is one of the most productive programs for future employment in the environmental field. WSP is administered by CaliforniaVolunteers, the Office of the Governor and sponsored by AmeriCorps and the California Department of Fish and Wildlife.