Assesment of Ecological State and Dynamics of Waters of the East Kamchatka Current Area and Other Locations of the Far Eastern Seas in the Cruise No. 68 of R/V Academic Oparin

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Abstract

During the cruise No. 68 of the R/V “Academic Oparin”, which was carried out from August 8 to September 18, 2023, research was continued in the area to the east of Kamchatka Peninsula to study the possible factors that caused the mass mortality of marine organisms in the Fall of 2020, study the structure of East Kamchatka Current, features of mesoscale eddies formed here, hydrochemical features of the Kamchatka Bay, as well as a research of gas-geochemical processes and assessment of environmental conditions in the area of oil and gas exploration on the shelf of Sakhalin Island, assessment of radionuclide content in the area of the cruise, marine optics research and hydro acoustic experiments.

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About the authors

V. B. Lobanov

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Author for correspondence.
Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

A. F. Sergeev

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

P. Yu. Semkin

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

N. B. Lukyanova

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

I. F. Alekseev

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

V. A. Goryachev

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

S. G. Sagalaev

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

S. P. Zakharkov

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

N. A. Lipinskaya

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

A. O. Kholmogorov

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

K. R. Baygubekov

Saint Petersburg State University

Email: lobanov@poi.dvo.ru
Russian Federation, Saint Petersburg

Yu. A. Barabanshchikov

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

D. S. Kalyuzhny

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences; Far Eastern Federal University

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok; Vladivostok

A. S. Kuznetsova

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences; Far Eastern Federal University

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok; Vladivostok

P. G. Kushnir

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

D. S. Makseev

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

E. A. Meshcheryakova

Lomonosov Moscow State University

Email: lobanov@poi.dvo.ru
Russian Federation, Moscow

N. A. Onishchenko

Lomonosov Moscow State University

Email: lobanov@poi.dvo.ru
Russian Federation, Moscow

I. E. Osipov

Far Eastern Federal University

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

A. A. Petrova

Arctic and Antarctic Research Institute

Email: lobanov@poi.dvo.ru
Russian Federation, Saint Petersburg

I. A. Prushkovskaya

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

V. V. Razzhivin

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

A. I. Razumov

Far Eastern Federal University

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

D. D. Sokolov

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences; Far Eastern Federal University

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok; Vladivostok

O. A. Ulanova

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

Yu. V. Fedorets

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

M. S. Fedorov

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences; Dalrybvtuz Far Eastern State Technical Fishery University

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok; Vladivostok

M. G. Shvetsova

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

E. M. Shkirnikova

Ilyichev Pacific Oceanological Institute of the Far Eastern Branch of the Russian Academy of Sciences

Email: lobanov@poi.dvo.ru
Russian Federation, Vladivostok

Supplementary files

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2. Fig. 1. Map of the work of the TOI FEB RAS expedition onboard the R/V Academic Oparin (cruise 68) in August-September 2023: 1 - position of oceanographic stations; 2 - position of ABS; 3 - ports of call and approach; 4 - places of boat operations; 5 - point of emission of acoustic signals. The inset (a) shows the distribution of the conditional specific density (kg/m3) on the section along the Kamchatka Trough through the anticyclonic vortex A and cyclonic vortices B and C. Box (b) shows the distribution of chlorophyll a fluorescence (mg/l) on a transect perpendicular to the trough through cyclonic vortex B.

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