Cereghino 2023 DRAFT hood canal summer chum escapement history
- Last Ten Products
- Small, D., P. Smith, I. Keren, T. Quinn, P. Schlenger 2024 Fine scale movement of juvenile salmon to inform tidal fish passage restoration in Puget Sound
- Greene & Chamberlin 2024 multi-scale benefits of delta restoration for salmon
- Seedlot Selection Tool
- Bioregional Funding Facilities Funding Resources
- Cereghino 2024 draft riverscape agroforestry principles
- FEMA 2023 Flood Risk Mapping Guidance
- Cereghino 2024 Salish sea platform short intro
- Islands in the Salish Sea
- USDA Plants Database
- ESA 2024 bellingham culvert prioritization
- Product Categories
- Google scholar search
- Linked To This Product
- Wiki Rules
- Wiki text does not reflect the policy or opinion of any agency or organization
- Please adhere to our Social Contract and Style Guide
- Complain here, and be nice.
This chart is an ad hoc product based on SCORE data from WDFW showing the period of record for salmon escapement (returns) for four rivers in Hood Canal: Quilcene Rivers, Duckabush River and Dosewallips River. "H" indicates hatchery supplementation while "N" and all blue-green portions of the graph reflect natural spawners. The graph is a stacked area graph, to show the cumulative population across the four rivers, and the proportion of escapement associated with each river. Listing of Hood Canal summer chum salmon under the Endangered Species Act in 1999 resulted in recovery planning, discontinuing of hatchery production, control on harvest, followed by a rebound of the population in 2012-2017. In 2018 the population crashed, which has been attributed to ocean conditions (The Blob) which degraded the population. So while management appears to have helped the population, Hood Canal summer run chum salmon appear vulnerable to ocean conditions. Since then 2022 numbers improved, and 2023 has been projected to be even better, but the instability of the population remains troubling.
