Contents

Contemporary Problems of Ecology

Vol. 19, No. 1, 2026

Alpha-Linolenic Land and Eicosapentaenoic Ocean: Possible Reasons for Distinctions in the Fatty Acid Composition of Major Producers

M. I. Gladyshev, V. E. Guseynova, and N. N. Sushchik p. 1  abstract

Influence of Humic Substances on Phytoplankton Primary Production and Community Structure: A Review

M. S. Golubkov p. 24  abstract

Distribution Patterns of Tubifex tubifex (Oligochaeta, Tubificinae) Genetic Lineages in Relation to Environmental Factors in the Vychegda River Basin

M. A. Baturina, M. A. Golubev, A. S. Bakashkina, Yu. V. Marchenko, and A. B. Novakovskiy p. 34  abstract

Ichthyoplankton Complexes of the Coastal Waters of Southeastern Crimea

T. N. Petrova, T. N. Klimova, and I. V. Popov p. 47  abstract

Regional Resilience of Coastal Plankton Communities to Global Warming

S. A. Piontkovski, Yu. A. Zagorodnyaya, and I. Yu. Prusova p. 59  abstract

Quantitative Characteristics and Age Structure of Apatania crymophila Larvae on Aquatic Moss of the Yenisei River Downstream of а High-Pressure Hydroelectric Plant

D. A. Konovalova, O. V. Anishchenko, and T. A. Zotina p. 74  abstract

Dynamics of the Reproduction and Population Structure of Northern Red-Backed Vole Myodes rutilus Pallas, 1779 in the Northern Taiga of Western Siberia

V. P. Starikov, A. Yu. Levykh, V. A. Petukhov, and K. A. Bernikov p. 85  abstract

Wound Infection of Mongolian Marmot (Marmota sibirica) Populations with Pseudotuberculosis as a Trigger for Speciation of the Plague Microbe Yersinia pestis

V. V. Suntsov p. 96  abstract

Study of the Bacterial Community of Nest Litter from the Burrows of Long-Tailed Gopher by Metagenomic Analysis

E. G. Tokmakova, N. F. Galatsevich, A. S. Ponomaryova, S. V. Erdyneev, A. A. Chalbakai, I. S. Akimova, and S. V. Balakhonov p. 105  abstract

Interannual Variability of Ecosystem Exchange of CO2 and H2O in the Middle Taiga Cowberry–Lichen Pine Forest in the European Northeast of Russia

S. V. Zagirova and M. N. Miglovets p. 112  abstract

Diversity of Microbial Communities in the Soils of Different Natural and Technogenic Ecosystems of the Meshchera Lowland

A. A. Shirokikh, N. A. Bokov, T. L. Egoshina, and I. G. Shirokikh p. 122  abstract

Biosorption of Rare-Earth Elements from Aqueous Solutions and Their Mineralization by Microscopic Fungi

L. P. Shumilova, V. I. Radomskaya, L. M. Pavlova, N. Yu. Leusova, and V. V. Ivanov p. 138  abstract

Oil Pollution Assessment of Coastal Marine Water Areas of the Kamchatka Peninsula Based on Microbial Indication

E. A. Bogatyrenko, A. V. Kim, D. V. Dashkov, T. I. Dunkai, and A. I. Voitovskaya p. 148  abstract

Behavior of Diesel Fuel Hydrocarbons in Soils of the Far North after Accidental Contamination

D. V. Fedorov, O. V. Serebrennikova, and E. A. Elchaninova p. 160  abstract