Several data files were uploaded for this project: **AtlanticSalmonMeanForkLength.rds**: This data file includes mean annual values in fork length (mm) for 1SW and 2SW Atlantic salmon for 19 rivers throughout Eastern Canada. These data were used as the response variable for the Dynamic Factor Analysis (DFA). **CapelinBiomass.rds**: This data file contains the biomass of Capelin from Fisheries and Oceans Canada. These data were used to calculate an index of food availability. **covariates1SW.rds** & **covariates2SW.rds**: This data file contains all the final covariates for the Dynamic Factor Analysis for 1SW and 2SW salmon. **CPR zooplankton taxa lengths.xlsx**: This data file contains the lengths of several zooplankton taxa compiled from several sources (also listed in the file). These data were used to calculate biomass indices for zooplankton. **FisheryExploitationRates.rds**: This data file contaings the catch rates of Atlantic salmon from Fisheries and Oceans Canada. These data were used to calculate exploitation rates for small and large salmon in North American Commission (NAC) marine fisheries. **ICES 2023_Table 3.3.4.4_PFA_NEAC.xlsx**: This data file contains the pre-fishery abundance (PFA) for non-maturing Atlantic Salmon from the Northeast Atlantic Commission (NEAC). These data were used to calculate indices for density dependence. **ICES 2023_Table 4.3.6.1_PFA_NAC.xlsx**: This data file contains the pre-fishery abundance (PFA) for marture and non-maturing Atlantic Salmon from the North American Commission (NAC). These data were used to calculate indices for density dependence. ----------------- **References** ICES, 2023. Working Group on North Atlantic Salmon (WGNAS). ICES Sci. Rep. 5, 478 pp. https://doi.org/10.17895/ices.pub.2274371