Contents

Oceanology

Vol. 64, No. 4, 2024

MARINE BIOLOGY

Phytoplankton of the Ob Estuary (Kara Sea) in the Season Preceding Winter

I. N. Sukhanova, M. V. Flint, A. V. Fedorov, A. A. Nedospasov, and S. G. Poyarkov p. 493  abstract

Features of the Distribution of Black Sea Ichthyoplankton in Conditions of Activation of Atmospheric Processes in the Summer Hydrological Season of 2021

T. N. Klimova, A. A. Subbotin, I. V. Vdodovich, Yu. A. Zagorodnyaya, and D. A. Zabrodin p. 501  abstract

Decadal Changes in Nematoda and Harpacticoida Taxocenes in Blagopoluchiya Bay (the Kara Sea)

D. V. Kondar, P. V. Lepikhina, L. A. Garlitska, A. A. Udalov, M. V. Chikina, and V. O. Mokievsky p. 514  abstract

Preliminary Data on the Depth Effect on the Nematode Community in the East Siberian Sea

D. A. Portnova, and L. A. Garlitska p. 525  abstract

Meiobenthos of the Côn Đảo Islands (Vietnam): Differences in the Structure of Taxocenes of Reef Flats and Mangroves

V. O. Mokievsky, A. V. Tchesunov, D. V. Kondar, L. A. Garlitskaya, D. T. Nguyen, and T. X. P. Nguyen p. 532  abstract

Injuries as an Indicator of the Population Density and Fishing Intensity of Snow Crab (Chionoecetis opilio) in the Barents Sea

S. V. Bakanev p. 543  abstract

Development of Fecundity of Red King Crab during Its Acclimatization in the Barents Sea

S. V. Bakanev, and T. V. Shamray p. 555  abstract

Monitoring of a Seasonal Local Aggregation of Beluga Whales Delphinapterus leucas Based on Presumed Identification “Contact Calls”: a Pilot Study

E. M. Panova, and A. V. Agafonov p. 566  abstract

MARINE GEOLOGY

First Finding of Vivianite in Kara Sea Bottom Sediments

N. V. Kozina, L. Ye. Reykhard, M. D. Kravchishina, A. S. Filippov, O. M. Dara, Ye. A. Novichkova, L. A. Lozinskaya, and S. V. Slomnyuk p. 576  abstract

Changes in the Composition of Upper Pleistocene Sediments in the Center of an Active Hydrothermal System (Middle Valley, Juan De Fuca Ridge, Pacific Ocean)

V. B. Kurnosov, Yu. I. Konovalov, and K. R. Galin p. 584  abstract

Rhythmic Patterns of a Sandy Coast and Self-Organization of the Relief

I. O. Leont’yev p. 598  abstract

Tyushevskaya Marine Paleobasin (Eastern Kamchatka): Composition and Development Features

N. V. Tsukanov p. 609  abstract

RESEARCH METHODS AND INSTRUMENTS

Use of Sonar Systems to Detect Areas of Gas Discharge of the Seabed

V. I. Kaevitser, V. M. Smirnov, and I. V. Smolyaninov p. 623  abstract

RESEARCH METHODS AND INSTRUMENTS

Modified Gravity Corer: Advantages and Offshore Testing

A. N. Kolesnik, O. N. Kolesnik, S. A. Selyutin, A. A. Bosin, and A. S. Astakhov p. 629  abstract

INFORMATION

Research of the Lagoon Estuaries of Vaygach Island in the 2023 Summer Low Water Period

I. V. Miskevich, D. S. Moseev, A. S. Lokhov, and E. I. Kotova p. 638  abstract

Gas-Geochemical Studies of the Outer Water Area of Peter the Great Bay (Sea of Japan) on the R/V Professor Gagarinskiy, Cruise 83

A. V. Yatsuk, M. A. Bovsun, R. B. Shakirov, A. V. Storozhenko, V. V. Kalinchuk, D. S. Makseev, I. G. Yugai, E. V. Lifansky, P. D. Zherdev, R. A. Grigorov, D. A. Shvalov, K. I. Aksentov, A. Y. Lazaryuk, and E. I. Yaroshchuk p. 641  abstract

Cruise 93 of the R/V Akademik Mstislav Keldysh: Geosystems of the Western Eurasian Arctic Shelves in the Season of Active Autumn–Winter Convection and Polar Night

M. D. Kravchishina, A. A. Klyuvitkin, A. N. Novigatsky, A. G. Matul, V. V. Ivanov, D. A. Pestunov, Y. A. Shtabkin, B. V. Baranov, S. V. Galkin, A. K. Ambrosimov, N. V. Kozina, O. N. Lukianova, and I. A. Nemirovakaya p. 644  abstract