Fig. 1

Fitting of Bayesian growth models to observed data for G. salaris infections on Atlantic salmon. a-c. A The Bayesian exponential growth model. a Sample fish infection data from Imsa dataset, fitted with the exponential model b Residuals from the Imsa dataset (18 fish) after fitting the exponential growth model, plotted against age of infection c the same residuals fitted against size of infection. d-f. The Bayesian time-dependent growth model. d sample fish infection data from Imsa dataset, fitted with the time-dependent model e Residuals from the Imsa dataset after fitting the time-dependent growth model, plotted against age of infection f the same residuals fitted against size of infection. g-i. The Bayesian density-dependent growth model. g Sample fish infection data from Imsa dataset, fitted with the density-dependent model. h Residuals from the Imsa dataset after fitting the density-dependent growth model, plotted against age of infection (i) the same residuals fitted against size of infection. Three very large residuals (>2) excluded from (h) and (i)