Discocotyle sagittata (Leuckart, 1842) Diesing, 1850

Discocotyle sagittata View in CoL

The only helminth species with a direct life cycle, D. sagittata , was common on the trout gills in 2011, with an increase in both prevalence and mean and median intensity with increasing age of the trout ( Table 3 View Table 3 ). The positive linear regressions between age-classes/length classes and relative density, were both significant (age: R 2 =0.89, df=6, F=40.78, p<0.01; length: R 2 =0.67, df=5, F=8.36, p<0.05) ( Figure 6 View Figure 6 ).