1. Phagotrophic protists (protozoa) in Antarctic terrestrial ecosystems: diversity, distribution, ecology, and best research practices

   • Andrew R. Thompson

   Review Open access 18 June 2021 Pages: 1467 - 1484

   

2. Sclerochronology in the Southern Ocean

   • Alejandro Roman Gonzalez

   Review Open access 01 July 2021 Pages: 1485 - 1515

   

3. Using correlative and mechanistic niche models to assess the sensitivity of the Antarctic echinoid Sterechinus neumayeri to climate change

   • Salomé Fabri-Ruiz
   • Charlène Guillaumot
   • Thomas Saucède

   Original Paper 17 June 2021 Pages: 1517 - 1539

   

4. Variability in tissue-specific trophic discrimination factors (∆¹³C and ∆¹⁵N) between Antarctic krill Euphausia superba and free-ranging Pygoscelis penguins

   • Filipe R. Ceia
   • Yves Cherel
   • José C. Xavier

   Original Paper 26 June 2021 Pages: 1541 - 1551

   

5. Maintenance of nest quality in Adélie penguins Pygoscelis adeliae: an additional benefit to life in the center

   • Virginia Morandini
   • Katie M. Dugger
   • Grant Ballard

   Original Paper 25 June 2021 Pages: 1553 - 1562

   

6. Pitfalls and advances in morphometric sexing: insights from the Adélie penguin Pygoscelis adeliae

   • Niccolò Fattorini
   • Silvia Olmastroni

   Original Paper Open access 21 June 2021 Pages: 1563 - 1573

   

7. New genetic evidences for distinct populations of the common minke whale (Balaenoptera acutorostrata) in the Southern Hemisphere

   • Lucas Milmann
   • Mioko Taguchi
   • Luis A. Pastene

   Original Paper 17 June 2021 Pages: 1575 - 1589

   

8. New insights into the autecology of the two sympatric fish species Notothenia coriiceps and N. rossii from western Antarctic Peninsula: A trophic biomarkers approach

   • Eugenia Moreira
   • Manuel Novillo
   • Marleen De Troch

   Original Paper 17 June 2021 Pages: 1591 - 1603

   

9. Year-round population dynamics of Limacina spp. early stages in a high-Arctic fjord (Adventfjorden, Svalbard)

   • Lauris Boissonnot
   • Peter Kohnert
   • Barbara Niehoff

   Original Paper 23 June 2021 Pages: 1605 - 1618

   

10. Seed trapping or a nurse effect? Disentangling the drivers of fine-scale plant species association patterns in a windy environment

    • Charne A. Gouws
    • Natalie S. Haussmann
    • Peter C. le Roux

    Original Paper 17 June 2021 Pages: 1619 - 1628

    

11. Midtrophic fish feeding modes at the poles: an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica)

    • Erica Carlig
    • Jørgen S. Christiansen
    • Laura Ghigliotti

    Original Paper Open access 20 June 2021 Pages: 1629 - 1642

    

12. Egg retention of high-latitude sockeye salmon (Oncorhynchus nerka) in the Pilgrim River, Alaska, during the Pacific marine heatwave of 2014–2016

    • Michael P. Carey
    • Vanessa R. von Biela
    • Christian E. Zimmerman

    Original Paper 18 June 2021 Pages: 1643 - 1654

    

13. Feeding ecology of the long finned pilot whale, Globicephala melas edwardii, in the southwestern Atlantic Ocean, determined by stable isotopes analysis

    • Yamila A. Becker
    • Nicolás E. Fioramonti
    • Luciana Riccialdelli

    Original Paper 25 June 2021 Pages: 1655 - 1667

    

14. Biodiversity and biogeography of hydroids across marine ecoregions and provinces of southern South America and Antarctica

    • Thaís P. Miranda
    • Marina O. Fernandez
    • Antonio C. Marques

    Original Paper 25 June 2021 Pages: 1669 - 1689

    

15. The last refugia for a polar relict pollinator: isolates of Bombus glacialis on Novaya Zemlya and Wrangel Island indicate its broader former range in the Pleistocene

    • Grigory S. Potapov
    • Mikhail V. Berezin
    • Ivan N. Bolotov

    Original Paper 30 June 2021 Pages: 1691 - 1709

    

16. Distinct genetic clustering in the weakly differentiated polar cod, Boreogadus saida Lepechin, 1774 from East Siberian Sea to Svalbard

    • María Quintela
    • Shripathi Bhat
    • Torild Johansen

    Original Paper Open access 03 July 2021 Pages: 1711 - 1724

    

17. Parental care and demography of a spawning population of the channichthyid Neopagetopsis ionah, Nybelin 1947 from the Weddell Sea

    • Emilio Riginella
    • Santiago E. A. Pineda-Metz
    • Mario La Mesa

    Original Paper 30 June 2021 Pages: 1725 - 1735

    

18. First confirmed stranding of a fin whale (Balaenoptera physalus) in Tierra del Fuego, Argentina

    • A. A. San Martín
    • M. N. Paso Viola
    • N. A. Dellabianca

    Short Note 15 June 2021 Pages: 1737 - 1744

    

19. Correction to: Do Skeletal Mg/Ca Ratios of Arctic Rhodoliths Reflect Atmospheric CO₂ Concentrations?

    • Sebastian Teichert
    • Nora Voigt
    • Max Wisshak

    Correction Open access 29 June 2021 Pages: 1745 - 1745

20. Correction to: Summer phyto‑ and bacterioplankton communities during low and high productivity scenarios in the Western Antarctic Peninsula

    • Sebastián Fuentes
    • José Ignacio Arroyo
    • Beatriz Díez

    Correction 07 July 2021 Pages: 1747 - 1747