Fraser River sockeye salmon: data synthesis and cumulative impacts

This assessment should be the contractor’s best guess at the LEVEL of a particular stressor, notthe actual IMPACT of that stressor on sockeye productivity. Contractors should provide theirqualitative ratings independent of the productivity data (i.e. do not assign ratings based onlooking at the productivity data, as that would make the ratings biased and unusable in ESSA’sanalyses). Stock X may have been subject to a low level of pollution prior to 1985, butincreased to a high level of pollution when a pulp mill was built. Similarchanges may have occurred at other times for other stocks. The “level” of salmon farms might reflect the total number or the totalproduction capacity over time and apply to all stocks migrating past each setof farms. Some metrics may have remained at relatively constant levels over thetimeframe indicated.If it is not possible to distinguish among multiple quantitative metrics in making qualitativejudgments for the entire period of record, contractors may choose to qualitatively evaluate only asingle overarching measure for their particular stressor.Template InstructionsGeneral• Examples are included. Overwrite these with your own input.• Many cells contain comments with additional guidance. Look for cells with red trianglesand hold your cursor over such a cell to read the comment.• Much of the template is protected. You should not need to edit protected cells.Opportunities for including descriptive comments are included throughout the template.• Many of the drop-down menus provide flexibility to add additional items as necessary.Additional items can be added by finding the relevant list on the “Lists” worksheet andentering new values.• IMPORTANT: “Year” refers to the year of data measurement, NOT the brood yearpotentially affected. Data will be adjusted later as necessary based on its associated lifehistory stage. Do not adjust metrics for brood year.268