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- 19001
- 19741
- Anisakis1
- Atlantic salmon1
- Crepidostomum metoecus Braun1
- Cystidicoloides ephemeridarum1
- Czech Republic released since 1998: Gyrodactylus truttae Gläser1
- Diplostomum spathaceum (Rudolphi, 1819) metacercariae1
- Elbe River basin1
- Raphidascaris acus (Bloch, 1799) adults and encapsulated larvae1
- Salmo salar1
- Salmo trutta fario[remove]1
- brown trout1
- helminths1
- reintroduction1