Winter-Run Chinook Salmon Recovery Scenarios: A 26-Year Population Model Analysis

A supplementary PDF file presents a population dynamics model evaluating recovery strategies for endangered Sacramento River winter-run Chinook salmon. The study, authored by Ann-Marie K. Osterback, couples habitat, hydrological, and population models to simulate scenarios from 1995 to 2020. It analyzes the synergistic effects of multiple management actions on population size.

Use Cases

• Evaluate the effectiveness of combined habitat restoration and flow modification strategies based on the coupled model framework described.
• Simulate population growth under different hatchery practice and harvest reduction scenarios using the life cycle model structure.
• Prioritize recovery actions for endangered salmonids based on the 26-year simulation results comparing singular and multi-action approaches.

Strengths

• Model results are based on a 26-year simulation period (1995–2020).
• The study evaluates a large suite of potential recovery scenarios, including both singular and combined actions.
• File is openly licensed under CC-BY-4.0.

Limitations

• The primary data file is a PDF (1.1 MB); underlying model data or code are not directly provided.
• Column-level documentation and sample data are unavailable; data structure must be inferred from the paper.
• Row count is unknown, which may limit suitability assessment for direct data analysis.

Provenance

Source

Ann-Marie K. Osterback, published on figshare.

Collection Method

Results from an updated Winter-run Chinook salmon life cycle model (WRLCM) coupling water-planning, hydrodynamic, habitat capacity, and survival models.

Time Range

Simulation period covers 1995–2020.

Freshness

Last updated 2026-04-14 05:38:57.

Geography

Focus is on Sacramento River winter-run Chinook salmon in California's Central Valley.