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