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Lepeophtheirus salmonis known as the salmon louse, is an ectoparasitic copepod from the Caligidae family, raising concerns due to its impact on wild juvenile Pacific salmon, particularly from salmon farming. Its life cycle includes both free-swimming and attached stages, with nauplius and infective copepod stages drifting in plankton before attaching to a host salmon and causing multiples diseases like skin lesions,ulceration,retarded growth and chronic infection leads to loss of fin. Growth is mainly influenced by temperature and salinity. This parasite significantly impacts the aquaculture industry, a great loss of economy in aquaculture per year globally. Some strategies are made to minimize economic losses all over the world.