Spread of seafish invasions in the northen sea of okhotsk as a factor of human infection

E.A Vitomskova,V.I Zhuleva,E Renev,R Changzhong,G Batalova,V Romanyuk,Y Shavrokov

doi:10.1051/bioconf/20213607009

Abstract

The results of the analysis are presented in the comparative aspect of the long-term - 1989 - 2021. - dynamics of infection of commercial fish with parasites common to humans and animals, and determination of their role in the spread of invasions among the population of the region. During this period, in marine fish – herring Clupea pallasii Valenciennes, 1847 (Clupeiformes: Clupeidae), saffron cod Eleginus gracilis, flounder Acanthopsetta nadeshnyi and smelt Osmerus mordax dentex Steindachner, 1870 – 5 types of helminthes potentially dangerous for humans have been identified, which can cause such dangerous diseases like anisacidosis, diphyllobothriasis and corynosomiasis. All fish species show high rates of invasion. Herring is infested by 97.4%, saffron cod - 55.2%, flounder - 67.5%, smelt - 58.4%. Ichthyopathological examinations isolated Anisakis simplex, Pseudoterranova decipiens, Pyramicocephalus phocarum, Diphyllobothrium sobolevi, Corynosoma strumosum. Individuals with combined invasion were registered: saffron cod Anisakis simplex, Pyramicocephalus phocarum, Corynosoma strumosum; smelt Anisakis simplex (Pseudoterranova decipiens), Diphyllobothrium sobolevi, Corynosoma strumosum. The most dangerous for humans are flounder and smelt due to the localization of helminths in the muscles.

Highlights

Fishing takes one of the main places in the economy of the Far Eastern region of Russia, including its northern part within the boundaries of the Sea of Okhotsk basin
Only one species of helminths – Anisakis simplex was found in Pacific herring
All fish species have a high degree of invasion (E.I.,%): herring - 91.2%, saffron cod - 55.2%, flounder - 60,%, smelt - 58.4%

Summary

Introduction

Fishing takes one of the main places in the economy of the Far Eastern region of Russia, including its northern part within the boundaries of the Sea of Okhotsk basin. Fish of various breeds are caught on an industrial scale and by the local population for personal consumption all year round. Fish has long been an important source of meeting the needs of the population in protein food and other elements of water origin, which are absent in livestock products, and affordable food in the conditions of the Magadan region. The consumption of fish must meet certain safety criteria. The issue of ensuring the quality and safety of fish products for human health in terms of parasitic purity has a certain novelty and undoubted relevance. Determination of the impact of fish diseases on the health of the population with the determination of the risk of exposure and risk management in the aspect of its minimization is of a practical nature, has economic and social significance

Objectives

Methods

Results

Conclusion