Fraser River sockeye salmon: data synthesis and cumulative impacts

Figure A3.4-3. Querying data to prepare for brood year adjustment.These data were stored in a temporary table called OutputQuant. The stock and life stagevalues were used to join the OutputQuant table to the BroodYearAdjustment table(Figure A3.4-3).Figure A3.4-4 The query used to make the brood year adjustments.Observation years were adjusted to brood years based on stock, life stage and age-type.An example output from the brood year adjustment process is shown in Table A.3-4. Forthe 4 2 age type, the sockeye salmon from brood year 1985 would have experienced the1987 August mean sea surface temperature of 12.859 °C in Queen Charlotte Sound asthey migrated along the coast to their marine rearing areas. Two years later, the samesockeye salmon (brood year 1985) would have experienced the 1989 August mean seasurface temperature in Queen Charlotte sound of 14.83 °C if they migrated back to theirspawning areas via the northern diversion.179