1. Can Fucoidans of Brown Algae Be Considered as Antioxidants?

   • T. I. Imbs
   • S. P. Ermakova

   REVIEW 27 July 2021 Pages: 157 - 161

2. Osmotic and Ionic Regulation in the Far Eastern Big-Scaled Redfin Tribolodon hakonensis Günther, 1877 (Cypriniformes: Cyprinidae) in the Sea and in Rivers

   • V. I. Martemyanov
   • N. E. Lamash
   • A. M. Andreeva

   ORIGINAL PAPERS 27 July 2021 Pages: 162 - 168

3. Lipid Composition and Oxidation Processes in the Blood and Internal Organs of the Antarctic Toothfish Dissostichus mawsoni Norman, 1937 (Nototheniidae)

   • D. V. Mikryakov
   • I. I. Gordeev
   • V. R. Mikryakov

   ORIGINAL PAPERS 27 July 2021 Pages: 169 - 175

4. Otolith Shape Analysis of the Mediterranean Horse Mackerel, Trachurus mediterraneus (Steindachner, 1868) (Perciformes: Carangidae) from the Coastal Waters of Sevastopol and Balaklava (the Black Sea)

   • M. V. Chesalin

   ORIGINAL PAPERS 27 July 2021 Pages: 176 - 184

   

5. The Integrated Response of Biomarkers in the Assessment of the Quality of the Marine Environment Based on the Example of the Bivalve Mollusk Mytilus trossulus (Gould, 1850)

   • A. A. Istomina
   • A. A. Mazur
   • L. F. Kolosova

   ORIGINAL PAPERS 27 July 2021 Pages: 185 - 192

   

6. A Genetic Analysis of the Limpet Lottia cf. borealis (Patellogastropoda: Lottiidae) from the Far Eastern Seas of Russia

   • S. N. Sharina
   • V. V. Malyar
   • A. V. Chernyshev

   ORIGINAL PAPERS 27 July 2021 Pages: 193 - 203

   

7. The Cell Ultrastructure and Autotrophic Function of the Raphidophyte Alga Heterosigma akashiwo (Y. Hada) Y. Hada ex Y. Hara and M. Chihara, 1987 under Copper Exposure

   • Zh. V. Markina

   ORIGINAL PAPERS 27 July 2021 Pages: 204 - 209

   

8. Physiological and Proteomic Alterations in Macrocystis pyrifera under Chromium(VI) Stress

   • Lu Wang
   • Dong Dong Yu
   • Ying Xia Li

   ORIGINAL PAPERS 27 July 2021 Pages: 210 - 218

   

9. New and Little-Known Species of Macroalgae from the Far Eastern Seas of Russia

   • O. S. Belous
   • A. V. Skriptsova
   • T. V. Titlyanova

   ORIGINAL PAPERS 27 July 2021 Pages: 219 - 225

   

10. Description of a New Quadrigyrid Species from Periophthalmus waltoni Koumans, 1941 in Iran

    • Saeed Yaghfoori
    • Mehdi Ghanbarifardi
    • Fatemeh Bossaghzadeh

    ORIGINAL PAPERS 27 July 2021 Pages: 226 - 231

    

11. Taxonomic Diversity of Culturable Hydrocarbon-Oxidizing Bacteria in the Sea of Japan

    • E. A. Bogatyrenko
    • A. V. Kim
    • A. K. Okulov

    ORIGINAL PAPERS 27 July 2021 Pages: 232 - 239