Salvelinema walkeri
Salvelinema walkeri is a parasitic nematode commonly found in juvenile salmonids as they transition from freshwater to marine environments. The parasite inhabits the swim bladder, with several hundred worms potentially developing in a single host. While the exact impact on the fish is unknown, it may affect buoyancy.
Distribution: Freshwater and marine environments where salmonids occur
Hosts: Juvenile salmonids
Detection Methods: Gross pathology / gross clinical signs
Target tissue: Swim bladder