Use of the Leslie Matrix for Assessing Environmental Impact with an Example for a Fish Population

Abstract

The Leslie matrix model for discrete population theory is examined for the assessment of the effects of environmental alterations on a species population using an eigenvalue analysis. This analysis provides estimates of population growth rate and stable age distribution. A sensitivity analysis is conducted for changes in elements of the population matrix and the resultant effect on population growth rate and stable age distribution. An example of this technique is presented for the cunner (Tautogolabrus adspersus). This example considers the effect of entrainment of cunner eggs and larvae at the intakes of power stations.