ASSESSMENT OF PARASITE INFECTIONS IN SALMONID FISH: CASE STUDY OF CAGE FARMS IN MURMANSK OBLAST

The paper describes the results of ichthyopathological assessment of fish in marine cage complexes of the Murmansk region. Based on external examination and dissection of fish, conclusions were drawn about the degree of salmonid fish invasion by parasites and about some morphological features of healthy and sick fish; cases of tumors in salmonid fish were detected.