1. Variability of Regeneration Mechanisms in Echinoderms

   • I. Yu. Dolmatov

   REVIEW 15 January 2021 Pages: 391 - 404

   

2. Colonial Nesting Birds of Peter the Great Bay, Sea of Japan (Pelecaniformes, Ciconiiformes)

   • I. M. Tiunov
   • I. O. Katin

   ORIGINAL PAPERS 15 January 2021 Pages: 405 - 411

   

3. The Spring-Run Ecotype of the Steelhead Trout Parasalmo (Oncorhynchus) mykiss (Walbaum, 1792) (Salmonidae, Salmoniformes) in the Kamchatka Peninsula

   • K. V. Kuzishchin
   • M. A. Gruzdeva
   • D. S. Pavlov

   ORIGINAL PAPERS 15 January 2021 Pages: 412 - 420

   

4. Characterization of Two Substocks of Penaeus kerathurus (Forskål, 1775) Using the Life-History Parameters

   • H. Jaziri
   • W. Khoufi
   • S. Ben Meriem

   ORIGINAL PAPERS 15 January 2021 Pages: 421 - 430

   

5. Otolith Shape Analysis and its Utilily for Identification of Two Smelt Species, Hypomesus japonicus and H. nipponensis (Osteichthyes, Osmeridae) from the Northwestern Sea of Japan with Inferences in Stock Discrimination of H. japonicus

   • Q. T. Vu
   • Yu. Ph. Kartavtsev

   ORIGINAL PAPERS 15 January 2021 Pages: 431 - 440

   

6. Helminths of the Black-Legged Kittiwake (Rissa tridactyla Linnaeus, 1758) and the Brünnich’s Guillemot (Uria lomvia Linnaeus, 1758) in Russkaya Gavan Bay, Severny Island, Novaya Zemlya Archipelago

   • V. V. Kuklin
   • M. M. Kuklina
   • A. V. Ezhov

   ORIGINAL PAPERS 15 January 2021 Pages: 441 - 451

7. Long -Term Changes in the Fish Fauna of the Karkinitsky Gulf of the Black Sea

   • R. E. Belogurova
   • E. P. Karpova
   • E. R. Ablyazov

   ORIGINAL PAPERS 15 January 2021 Pages: 452 - 460

   

8. Proteinases with Gelatinase Activity and their Role in Ambulacrum Regeneration in Holothurians Eupentacta fraudatrix (D’yakonov and Baranova, 1958) and Cucumaria japonica (Semper, 1868) (Echinodermata: Holothuroidea)

   • A. P. Shulga
   • N. E. Lamash

   ORIGINAL PAPERS 15 January 2021 Pages: 461 - 471

   

9. An Inventory of Benthic Flora in the Intertidal and Upper Subtidal Zones of Troitsa Bay (Peter the Great Bay, Sea of Japan)

   • O. S. Belous
   • T. V. Titlyanova
   • E. A. Titlyanov

   ORIGINAL PAPERS 15 January 2021 Pages: 472 - 484

   

10. An Inventory and Seasonal Changes in the Recent Benthic Flora of Coral Reefs of Wuzhizhou Island, Haitang Bay, South China Sea (China)

    • X. B. Li
    • E. A. Titlyanov
    • H. Huang

    ORIGINAL PAPERS 15 January 2021 Pages: 485 - 492

    

11. Effect of Nano-Fe as Feed Supplement on Growth Performance, Survival Rate, Blood Parameters and Immune Functions of the Stellate Sturgeon (Acipenser stellatus)

    • Pouya Ebrahimi
    • Reza Changizi
    • Saber Vatandoust

    ORIGINAL PAPERS 15 January 2021 Pages: 493 - 500

    

12. The First Record of a Spawning Ground of the Mud Skate Bathyraja taranetzi (Dolganov, 1983) and the Okhotsk Skate B. violacea (Suvorov, 1935) in Pacific Waters off the Northern Kuril Islands

    • A. A. Balanov
    • V. V. Panchenko
    • A. B. Savin

    BRIEF NOTES 15 January 2021 Pages: 501 - 505