TY  - GEN
AB  - An individual-based model (IBM) was developed to explore juvenile Chinook salmon (Oncorhynchus tshawytscha) migration patterns in the Columbia River estuary. The model used outputs from the hydrodynamic model SELFE as a virtual environment. There were several submodels, including a movement model that simulated Lagrangian transport and active swimming and a bioenergetics model that computed growth. A predation model was also developed to explore potential impacts of avian predators on survival. Migration was simulated for yearling and subyearling Chinook salmon, and swimming behaviors were developed based on assumptions regarding habitat usage. Yearling Chinook salmon behaviors optimized efficient migration, while subyearling Chinook salmon behaviors prioritized growth. Passive drift and random walk behaviors for both life-history types served as null models to compare the more sophisticated behaviors against.
AU  - Morrice, Katherine J.
DA  - 2020
DO  - 10.6083/x059c786m
DO  - DOI
ID  - 8056
KW  - Estuaries
KW  - Rivers
KW  - Hydrodynamics
KW  - Salmon
KW  - Ecosystem
KW  - Decision Making
L1  - https://digitalcollections.ohsu.edu/record/8056/files/Morrice.Katherine.2020.pdf
L2  - https://digitalcollections.ohsu.edu/record/8056/files/Morrice.Katherine.2020.pdf
L4  - https://digitalcollections.ohsu.edu/record/8056/files/Morrice.Katherine.2020.pdf
LK  - https://digitalcollections.ohsu.edu/record/8056/files/Morrice.Katherine.2020.pdf
N2  - An individual-based model (IBM) was developed to explore juvenile Chinook salmon (Oncorhynchus tshawytscha) migration patterns in the Columbia River estuary. The model used outputs from the hydrodynamic model SELFE as a virtual environment. There were several submodels, including a movement model that simulated Lagrangian transport and active swimming and a bioenergetics model that computed growth. A predation model was also developed to explore potential impacts of avian predators on survival. Migration was simulated for yearling and subyearling Chinook salmon, and swimming behaviors were developed based on assumptions regarding habitat usage. Yearling Chinook salmon behaviors optimized efficient migration, while subyearling Chinook salmon behaviors prioritized growth. Passive drift and random walk behaviors for both life-history types served as null models to compare the more sophisticated behaviors against.
PB  - Oregon Health and Science University
PY  - 2020
T1  - An individual-based model to evaluate juvenile chinook salmon migration in the Columbia river estuary
TI  - An individual-based model to evaluate juvenile chinook salmon migration in the Columbia river estuary
UR  - https://digitalcollections.ohsu.edu/record/8056/files/Morrice.Katherine.2020.pdf
Y1  - 2020
ER  -