Argulus

ALSO KNOWN AS: Fish lice / Fish louse, Carp lice

Argulus species are ectoparasitic copepods that attach to the skin and gills of fish, feeding on mucus and blood. Heavy infestations can cause irritation, reduced growth, and secondary bacterial infections.

Distribution: Found worldwide in freshwater and marine environments

Detection Methods: Gross pathology / gross clinical signs

Hosts: Freshwater and marine fish, including carp and salmonids

Target tissue: Skin, gills