Fig. 2: Effect of dams on infection prevalence, parasite load and renal hyperplasia.
From: Dams threaten salmonids by triggering temperature-dependent proliferative kidney disease
A Parasite prevalence (% of individuals infected) up- and downstream of the dams. Note that all rivers with 100% total prevalence (up- and downstream of dams) are shown with black colour and all rivers with 0% total prevalence are coloured white (see legend). B Parasite load (copies of Tb per reaction) up- and downstream of dams (upper clip at 8.2e4 for graphing purposes; see max values in Supplementary Fig. 3). C Relative kidney thickness (K) in relation to body thickness (dorsal muscular thickness, B), evaluated at the average B. D Relative kidney thickness measured as K/B-ratio (kidney thickness divided by dorsal muscular thickness). For B–D data and results are presented both for all trout individuals and for infected individuals only (see legend for colour scheme explanation of model results and data distribution). Significant differences are marked with different letters above model estimates (A-B for models including all individuals; Y-Z for models including only infected individuals).
