Vol. 19, No. 2, 2026

Inland Water Biology

AQUATIC FLORA AND FAUNA

Lychaete herpestica (Cladophoraceae): a New Alien Species in the Black Sea

S. Ye. Sadogurskiy, T. V. Belich, and S. A. Sadogurskaya p. 261 abstract

Current State and Dynamics of Flora of the Left-Bank Lakes of the Nekrasovskaya Floodplain (Yaroslavl Oblast)

E. A. Belyakov and E. V. Garin p. 269 abstract

Fluke Sphaerostoma globiporum (Trematoda: Opecoelidae) in the Angara River (Eastern Siberia), Outside the Main Area of the Species

A. E. Zhokhov and K. V. Polyaeva p. 280 abstract

First Records of Microvelia buenoi (Heteroptera: Veliidae) from the Polar Urals

A. N. Zinovyeva and E. V. Kanyukova p. 286 abstract

The Genus Stratiotes L. (Hydrocharitaceae): from Many to One

A. N. Efremov, C. Toma, and V. S. Grishina p. 294 abstract

BIOLOGY, MORPHOLOGY, AND SYSTEMATICS OF AQUATIC ORGANISMS

New Species of Freshwater Bryozoans Plumatella tazovae (Phylactolaemata) from Western Siberia (Russia)

V. I. Gontar and T. A. Sharapova p. 312 abstract

Minisigma vietnamicum gen. nov., sp. n. and Hofmaenneria longisetosa sp. n. (Nematoda, Chromadorea) from Coral Reefs in Vietnam

V. G. Gagarin and Nguyen Dinh Tu p. 321 abstract

AQUATIC MICROBIOLOGY

Chemical and Microbiological Studies of the Water Area of Kazantyp (Sea of Azov) in Summer

E. A. Tikhonova, O. V. Soloveva, Yu. S. Klycheva, N. V. Burdiyan, Yu. V. Doroshenko, S. V. Alyomov, and E. V. Guseva p. 330 abstract

AQUATIC MYCOLOGY

Distribution and Role of Fungi and Fungus-Like Organisms in Zooplankton of Freshwater Ecosystems: Review

L. V. Voronin and S. M. Zhdanova p. 346 abstract

New Findings of Cultured Micromycetes in the Deep-Sea Sediments of the Black Sea

N. I. Kopytina, E. A. Bocharova, and L. V. Gulina p. 354 abstract

PHYTOPLANKTON, PHYTOBENTHOS, PHYTOPERIPHYTON

Diatoms of the Periphyton of Various Lakes of the Karelian Isthmus (Leningrad Oblast)

S. I. Genkal and E. V. Stanislavskaya p. 360 abstract

Benthic Diatom Assemblages, Distribution Pattern and Response to Environmental Variables in the Belan River of the Neolithic Period the Vindhyan Region, India

Asheesh Shivam Mishra and Shweta Tiwari p. 368 abstract

ZOOPLANKTON, ZOOBENTHOS, ZOOPERIPHYTON

Structure of Zooplankton Communities in the Lakes of the Volzhsko-Kamsky Reserve Affected by Emergency Discharges

M. V. Kosova, O. Yu. Derevenskaya, and E. N. Unkovskaya p. 380 abstract

Features of the Macrozoobenthos Structure in Rivers of the Southern Part of the Olonets Isthmus

I. A. Baryshev p. 395 abstract

State of the Population of the Caspian Long-Toed Crayfish Pontastacus eichwaldi (Astacidae) in Coastal Waters of the Eastern Shelf of the Middle Caspian Sea in the Zone of Intensive Upwelling

V. B. Ushivtsev, O. V. Stepanian, and M. L. Galaktionova p. 403 abstract

Reconstructing the Zooplankton Composition of a Former Oligotrophic Lake

A. G. Rogozin p. 412 abstract

ICHTHYOLOGY

Alien Fish Species in Volga and Kama Rivers: Species Composition, Identification Peculiarities and Dispersal Patterns

D. P. Karabanov, Yu. V. Gerasimov, D. D. Pavlov, Yu. V. Kodukhova, and A. A. Kotov p. 424 abstract

Features of the Growth of the Garfish Belone belone euxini (Belonidae) off the Black Sea Coast of Southeastern Crimea (Northeastern Part of the Black Sea)

M. A. Beletskaya, V. I. Maltsev, and T. N. Petrova p. 452 abstract

Long-Term Dynamics of Age and Size Traits in the Russian Sturgeon Acipenser gueldenstaedtii Brandt et Ratzeburg, 1833 in the Caspian Sea

I. V. Konopleva and G. I. Ruban p. 460 abstract

PARASITOLOGY OF HYDROBIONTS

Metacercariae of Trematodes in the Snail Viviparus contectus (Millet, 1813) from the Rybinsk Reservoir

A. E. Zhokhov, E. A. Ageeva, and M. N. Pugacheva p. 471 abstract

Metacercaria Opisthorchiidae (Diginea, Opisthorchiidae) in Carp Fishes of the Voronezh Nature Reserve

B. V. Romashov and N. B. Romashova p. 480 abstract

Parasitic Mites and Commensal Ciliated Protozoa in Lamellidens marginalis: Prevalence, Mean Intensity and Morphological Characteristics

Sharmistha Kundu, Rajat Paul, and Jayati Ghosh p. 491 abstract

ECOLOGICAL PHYSIOLOGY AND BIOCHEMISTRY OF AQUATIC ORGANISMS

The Role of Free Amino Acids in Maintaining the Osmotic Homeostasis of Fishes

A. E. Filippova p. 501 abstract

Effect of Sublethal Concentrations of Dimethyl Disulfide on Hematological Parameters of Mature Danio rerio

E. A. Zabotkina, D. Yu. Trofimov, G. M. Chuiko, and M. V. Medyankina p. 515 abstract

Fluke Infestation and Physiological and Biochemical Parameters of Mollusks (Using the Example of a Pair of Paralecithodendrium chilostomum : Viviparus viviparus)

A. S. Sokolova, T. V. Frolova, and G. I. Izvekova p. 520 abstract

Influence of Electromagnetic Field and Thermal Stress on Physiological and Biochemical Parameters of Juvenile Prussian Carp Carassius gibelio with Different Mercury Content

A. A. Filippov, I. L. Golovanova, E. A. Kulivatskaya, V. A. Podgornaya, A. K. Smirnov, G. M. Chuiko, V. V. Krylov, D. E. Kotikov, and V. T. Komov p. 530 abstract

Influence of Heavy Metals on Cellular and Nuclear Abnormalities in the RBC of Fish Catla catla (Hamilton 1822) Cultivated in Small Water Bodies of Rice Paddy Fields in Western Ghats, India

M. V. Chethanakumara and S. V. Krishnamurthy p. 540 abstract

STRUCTURE AND FUNCTIONING OF AQUATIC ECOSYSTEMS

Application of Environmental DNA in Monitoring Diversity of Freshwater Ecosystems in China (A Systematic Review)

Sai Wang, Jian-Bin Wu, Hina Amin, Dong-Hai Wu, Tuan-Tuan Wang, Peng-Fei Xie, Chu-Jun Zou, Naimat Ullah, Hui-Long Ou, Jia Xie, Hai-Long Zhou, Xiao-Dong Mu, De-Jia Hou, Xi-Dong Mu, Yong-Duo Song, Li-Yong Miao, and Jia-Jiu Huang p. 553 abstract

Prediction and Risk Warning of BMWP Index of Tropical Rivers Based on Machine Learning

Sai Wang, Jian-Bin Wu, Guo-Ping Fu, Hong-Jin Zhang, Jing Wen, Tuan-Qi Guo, Yu-Jia Gao, Ming-Yang Wang, Xiao-Lu Chen, Tuan-Tuan Wang, Dong-Hai Wu, Peng-Fei Xie, Hui-Long Ou, Jia Xie, and Hina Amin p. 568 abstract

Comparative Catch Survey and Environmental DNA Survey of Invasive Largemouth Bass Micropterus nigricans in Dam Reservoir of Japan

F. Aranishi, T. Tanaka, and D. Khatun p. 584 abstract

STUDY METHODS

Biology, Ecology, and Collection, Processing, and Preservation Methods of Beetles of the Family Heteroceridae (Coleoptera)

A. S. Sazhnev p. 592 abstract

SHORT COMMUNICATIONS

The Effect of Tris(chloropropyl)phosphate (TCPP) on the Natural Population of the Aquatic Plant Lemna minor

S. A. Kurbatova, N. A. Berezina, and I. Yu. Yershov p. 603 abstract

New Data on the Aquatic Vascular Plant Flora of the Kolguev Island (Russian Arctic)

N. V. Zueva, A. M. Gubina, and A. A. Bobrov p. 607 abstract

Contents