Fig. 1

The movement of three different gyrodactylid parasites species/strains (Gt3, Gt and Gb) across eight host body parts (tail, lower body, anal fin, pelvic fins, dorsal fin, upper body, pectoral fins, head) of different fish stocks (OS, LA and UA stocks) at four time points. The degree of blackness indicates higher mean intensity (on log scale) over surviving fish