Caligus rogercresseyi is a member of a family of copepods (small crustaceans) within the order Siphonostomatoida, family Caligidae. Sea lice are marine ectoparasites (external parasites) that feed on
Caligus rogercresseyi has become an important model for the study of ectoparasitic infestations on salmon. The process of disease due to C. rogercresseyi on farmed Atlantic salmon (Salmo salar) in Chi