Life cycle models (LCMs) provide a useful framework for leveraging the fish population and habitat monitoring data collected by CHaMP and ISEMP, as well as other BPA-funded RM&E projects. It is a flexible population model framework capable of incorporating life-stage specific demographics, movement dynamics, fish-habitat relationships, and various restoration scenarios. The ISEMP life cycle model is an extension of the life stage specific Beverton-Holt model (Moussalli and Hilborn 1986) modified to explicitly link survival to habitat attributes (Sharma et al. 2005). We are currently building chinook LCMs in the Lemhi and Entiat and a steelhead model in the Middle Fork John Day.
ISEMP is connecting habitat capacity (quality and quantity) directly with the fish response through ecohydraulic models such as the Net Rate of Energy Intake (NREI) and Quantile Regression Forests (QRF) approaches.
2013: Project initiated.
Findings and Uses
The ISEMP LCM provides a useful framework for integrating these types of fine-scale data with a watershed-scale population model to support strategic restoration planning. ISEMP is connecting habitat capacity (quality and quantity) directly with the fish response through ecohydraulic models such as the Net Rate of Energy Intake (NREI) and Quantile Regression Forests (QRF) approaches.
Wall, C. E., N. Bouwes, J. M. Wheaton, S. N. Bennett, W. C. Saunders, P. A. McHugh, and C. E. Jordan. 2016. Design and monitoring of woody structures and their benefits to juvenile steelhead (Oncorhynchus mykiss) using a net rate of energy intake model. Canadian Journal of Fisheries and Aquatic Sciences:1-12.
Wall, C. E., N. Bouwes, J. M. Wheaton, W. C. Saunders, and S. N. Bennett. 2015. Net rate of energy intake predicts reach-level steelhead (Oncorhynchus mykiss) densities in diverse basins from a large monitoring program. Canadian Journal of Fisheries and Aquatic Sciences.
Wheaton, J. M., P. McHugh, N. Bouwes, C. Saunders, S. Bangen, P. Bailey, M. Nahorniak, E. Wall, and C. Jordan. 2017. Upscaling Site-Scale Ecohydraulic Models to Inform Salmonid Population-Level Life Cycle Modelling and Restoration Actions – Lessons from the Columbia River Basin. Earth Surface Processes and Landforms: n/a-n/a.