ORTHOMYXO- AND PARAMYXOVIRUSES IN MARINE MAMMALS by Marina G. Gulyaeva, Alexander Yu. Alekseev, Kirill A. Sharshov, Gayirbeg M. Abdurakhmanov, Alimurad A. Gadzhiev, Madina G. Daudova, Madina Z. Magomedova, Alexander M. Shestopalov

“…Abstract. Aim. Marine mammals play the role of "sentries", standing guard over the health and functioning of marine ecosystems. …”
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Satellite traceology: experience of using in the interests of mammalogy for protection of ice-associated marine mammals by Vladimir V. Melentyev, Vladimir I. Chernook, Konstantin V. Melentyev, Alexandr A. Startsev, Tatiyana A. Zakharova

“…Some incidents potentially dangerous for marine mammals are considered for the Gulf of Finland (Baltic Sea). …”
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Marine mammals in macro-ecosystems of Far Eastern seas and adjacent waters of the North Pacific by Vyacheslav P. Shuntov, Oleg A. Ivanov

“…Against the background of these estimates and comparing the volume of food consumption by marine mammals concluded that marine mammals in the Far Eastern Russian waters noticeable in food webs, but their role does not rise to a level sufficient for the regulation of the powerful sea and ocean makroekosistem.…”
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Bycatch of marine mammals in the Northwest Atlantic during commercial fishery (based on literature materials and observations by the Polar branch of VNIRO in 2013–2020) by Mishin T. V.

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FEATURES OF MICROELEMENT STRUCTURE OF BODIES AND FABRICS OF THE CASPIAN SEAL by L. Y. Nozdrina, V. F. Zaitsev, E. I. Melyakina

“…Caspian seal - this is the only marine mammal in the Caspian Sea, a unique endemic species, which is listed in the Red Book of World Conservation Union as a species under threat. …”
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THE CONTENT OF SOME MICROELEMENTS IN THE GASTROINTESTINAL TRACT OF AQUATIC MAMMALS AND HUMANS by A. S. Tanasova, T. S. Ershova, I. V. Zaitsev, V. F. Zaitsev

“…To a lesser extent in the digestive tract of humans accumulate cobalt, and the seal cadmium, which is probably related to the quality of habitat of the marine mammal.Conclusions. Thus, the obtained data on the accumulation of zinc, nickel, cadmium, chromium, manganese and cobalt in tissues of the stomach and intestines of humans and Caspian seals testify about the peculiarities of the distribution of metals in the body, characterized by uneven and depend on the species, functional characteristics of organs, their cumulative activity and chemical properties of the metal itself.…”
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On conditionally pathogenic microflora of caspian seal ( <i>Phoca caspica</i>) by Victoria V. Volodina, Svetlana A. D’Jakova, Ekaterina Ruban, Dina I. Shokasheva

“…Caspian seal was subjected in the 2000s to complex combined infection caused by viruses and pathogenic bacteria that led to mass mortality of this species, the only marine mammal in the Caspian Sea. So, bacteriological monitoring and detection of pathogenic microorganisms in internals and tissues of the seal were conducted in the 2007-2014 and a broad spectrum of high-adaptive pathogenic microbial associations was found. …”
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THE STORY AND PHILOSOPHY OF LENIE ‘T HART by Lenie‘t Hart

“…Also, signed the Decree about carrying out in 2017 in the territory of the Republic of Dagestan Year of the Caspian Sea and other water bodies.The article presents the philosophy and way of life of the woman and scientist who has spent whole life working and doing everything for the conservation of marine mammals, including the Caspian Seal - Lenie ‘t Hart (Godlieb Leentje).…”
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On understanding the history and some current problems of traditional fishery for indigenous northern nations in Khabarovsk Region by Sergey F. Zolotukhin

“…Fish was not the main food for them, they hunted on marine mammals accidentally and were almost not familiar with the seafood, their trade was a simple exchange of goods. …”
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Long-term dynamics of biomass and dominant species of the bottom fish complex in Peter the Great Bay by P. V. Kalchugin

“…Other predators, as marine mammals, were not abundant in Peter the Great Bay. …”
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Application of tonal audiometry methods to assess the hearing of grey seals in air and water environments by Pakhomov M. V., Zaytsev A. A., Litvinov Yu. V., Troshichev A. R.

“…Anthropogenic noise load on the traditional habitats of marine mammals continues to increase due to the active development of the Arctic zone. …”
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Hexachlorocyclohexane and DDT in marine organisms from the Bering and the Okhotsk Seas by Vasily Yu. Tsygankov, Margarita D. Boyarova, Olga N. Lukyanova, Nadezhda K. Khristoforova

“…Isomers of HCH and DDT and their metabolites were detected in organs of some marine mammals ( Eschrichtius robustus, Odobenus rosmarus divergens ) from the Bering Sea; the maximum concentration was found in the walrus liver (90263 ng/g lipids). …”
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SEAL LOUSE (ECHINOPHTHIRIDAE) AS VECTORS FOR INVASIVE AND INFECTIOUS DISEASE AGENTS OF PINNIPEDS by Mikhail Yu. Shchelkanov, Igor O. Katin, Elena G. Burukhina, Irina V. Pochinok, Egor M. Shchelkanov, Yuriy G. Volkov, Alexander M. Shestopalov, Irina V. Galkina

“…It is necessary to include investigations of seal lice of pinnipeds into the programs of ecology-zoological and ecologyvirological monitoring of marine mammals.…”
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