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Research Document - 1999/084

In-season Forecast for Atlantic Salmon (Salmo salar L.) Returning to Campbellton River in 1998.

By D.G. Reddin

Abstract

This document summarizes techniques used for in-season forecasts of Atlantic salmon returning to Campbellton River in 1998. Three techniques were examined: proportional, simple regression and regression with environmental correction. Data is limited to six years, 1993-98, of complete adult counts at a counting fence. The low degrees of freedom may have contributed to the high correlations. Regression with environmental correction gave the most accurate forecasts with a standard error of less than 10% of the forecasted value. While thermal habitat was used as an environmental variable in the regression model to good effect, there are other climate data that could also be used.

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