Abstract
In such a large region as the Far North-East of Russia, there is still no purposeful ichthyopathological study of fish diseases, which has epizootic and epidemiological significance. The material for the study was commercial fish caught in different seasons of 1995-2021. As a result of the research, individuals of natural populations and in aquaculture with clinical signs of infectious and parasitic diseases were found, and cultures of virulent strains of microorganisms were isolated. According to the results of the parasitological study, larvae of nematodes of the family Anisakidae and plerocercoids of cestodes Diphyllobothriidae, which have important epidemiological and epizootic significance, were registered. Based on long-term ichthyopathological studies, a retrospective review of own data was carried out. The analysis of infectious diseases of mature individuals of anadromous Pacific salmon of the genus Oncorhynchus, as well as long-term parasitological monitoring in a comparative aspect of the invasion of commercial fish by helminths dangerous to human and animal health, is presented.
Highlights
The fishing industry has played a central role in the region's economy at all times
Fishery pools abound in a variety of valuable fish species, such as chum salmon, coho salmon, sockeye salmon, pink salmon, halibut (Hippoglossus hippoglossus), halibut (Reinhardtius hippoglossoides), smelt, and greenling
It is difficult to overestimate the importance of fish and fish products in maintaining the food security of our country in general and the Magadan region in particular
Summary
The fishing industry has played a central role in the region's economy at all times. Fishery pools abound in a variety of valuable fish species, such as chum salmon, coho salmon, sockeye salmon, pink salmon, halibut (Hippoglossus hippoglossus), halibut (Reinhardtius hippoglossoides), smelt, and greenling. Sea fish has always been considered as an item of healthy nutrition with digestible protein and microelements in it. It is difficult to overestimate the importance of fish and fish products in maintaining the food security of our country in general and the Magadan region in particular. Halibut, cod, pollock, Pacific migratory salmon, flounder, and saffron cod have the largest share in the catch structure of fishing enterprises of the Magadan Region. Fish processing factories fully provide the population of the region with various and high-quality food products, and the regions of our country and abroad
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