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Retrospective evaluation of preseason forecasting models for sockeye and chum salmon

Abstract Using comprehensive data sets for chum salmon Oncorhynchus keta (40 stocks) and sockeye salmon O. nerka (37 stocks) throughout their North American ranges, we compared the retrospective performance of 11 models in preseason forecasting of adult abundance. Chum and sockeye salmon have more complicated age structures than pink salmon O. gorbuscha, which we investigated […]


Skeena Sockeye In-river Run Reconstruction Analysis Model and Preliminary Analysis Results for 1982-2009

Note: This analysis has since been updated, and the most recent version is available here. Summary “The Fraser, Skeena and Nass watersheds are the three largest sockeye producing watersheds in British Columbia. Exploitation rate estimates for the Nass and Skeena Sockeye stock aggregates are estimated annually using the Northern Boundary Sockeye Run Reconstruction (NBSRR) Model […]


Reference points for coho salmon (Oncorhynchus kisutch) harvest rates and escapement goals based on freshwater production

Abstract We describe a simple scheme for the management of coho salmon (Oncorhynchus kisutch) population aggregates that uses reference points derived from an empirical analysis of freshwater production data. We fit a rectilinear “hockey stick” model to 14 historical data sets of female spawner abundance and resulting smolt production and found that at low spawner […]