Fig. 1 in Alpine bullhead (Cottus poecilopus Heckel): a potential refuge for Gyrodactylus salaris Malmberg, 1957 (Monogenea)

Fig. 1. Effect of temperature on infection with Gyrodactylus salaris Malmberg, 1957 on alpine bullhead, Cottus poecilopus Heckel, from the River Nitelva, southeastern Norway. A – mean infection intensity and duration; B – the relationship between initial infection load (Day 0) and infection duration. Open circles = low temperature (6.5 ± 0.5 °C; n = 18); closed circles = high temperature (11.5 ± 0.3 °C; n = 9); vertical bars and values = range (minimum, maximum) and prevalence (%).