Stock Assessments for British Columbia Herring in 1986 and Forecasts of the Potential Catch in 1987

Stock Assessments for British Columbia Herring in 1986 and Forecasts of the Potential Catch in 1987

Microform - 1987
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Report presenting the 1986 herring stock assessment in British Columbia waters, with forecasts for 1987. Methods used include an escapement model analysis and an age-structured model analysis. The escapement model was modified to introduce age structure information and explicitly separate growth and recruitment. The age-structured model was modified to incorporate an availability term to estimate partial recruitment. Diving spawn survey data were incorporated into the escapement model wherever available. Forecasts of pre-fishery biomass were obtained by weighting the estimates from the two models.
Publisher: Nanaimo, B.C. : Dept. of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, 1987
Description: 63 p
Branch Call Number: MF BC-DOC 88-00939

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