Using restoration monitoring data to inform an H-integrated Chinook salmon recovery strategy
July 2023 - June 2026
- Washington State Estuary and Salmon Restoration Program
Estuarine habitat restoration plays a crucial role in providing quality nursery habitat for out-migrating juvenile salmon; however, habitat loss is just one of many cumulative stressors that are contributing to salmon decline (often referred to as the “four Hs”). Habitat managers can maximize restoration efficiency and effectiveness if they account for how restoration actions will interact with other factors, for example: How will hydropower-related modifications in sediment regimes impact the restoration area’s functional value as salmon habitat? Will the restoration area play a role in mitigating potentially negative effects of hatchery salmon? What effect could the restoration have on the number of returning adult salmon and commercial, recreational, and tribal harvest rates? Put simply, H-Integration is a concerted effort to account for all H-factors when pursuing the goal of a self-sustaining, harvestable salmon run. This goal of this project is to demonstrate how managers can use an H-integrated approach to maximize the efficiency and effectiveness of restoration. We believe that an H-Integrated approach can maximize the efficiency and effectiveness of ongoing and future restoration projects. This is because it allows managers to identify restoration actions that are most likely to mitigate negative interactions between different species and stocks of salmon, bolster harvest rates, and maintain habitat function in the face of climate change and shifts in hydropower-mediated sediment delivery regimes.