Browsing NIVA Open Access Archive by Author "Berezina, Anfisa"

Now showing items 1-17 of 17

    • Arctic Inshore Biogeochemical Regime Influenced by Coastal Runoff and Glacial Melting (Case Study for the Templefjord, Spitsbergen) 

      Pogojeva, Maria; Polukhin, Alexander; Makkaveev, Petr; Staalstrøm, Andre; Berezina, Anfisa; Yakushev, Evgeniy (Peer reviewed; Journal article, 2022)
      Observations and predictions show that consequences of climate warming such as declining summer sea ice cover, melting glaciers, thawing permafrost, and increased river runoff to the Arctic Ocean will likely modify processes ...

    • Areal dekket av flytebrygger og utfyllinger i Indre Oslofjord 

      Staalstrøm, Andre; Berezina, Anfisa (NIVA-rapport;7815-2023, Research report, 2023)
      Siden 50-tallet har litt over to kvadratkilometer (2,04 km²) med gruntvannsareal gått tapt til flytende og faste brygger og utfyllinger. Det totale bunnarealet i Oslofjorden innenfor Filtvedt som er grunnere enn 10 m utgjør ...

    • Assessment of seasonal variability of input of microplastics from the Northern Dvina River to the Arctic Ocean 

      Zhdanov, Igor; Lokhov, Alexey; Belesov, Artem; Kozhevnikov, Alexander; Pakhomova, Svetlana; Berezina, Anfisa; Frolova, Natalia; Kotova, Ekaterina; Leshchev, Andrey; Wang, Xinhong; Zavialov, Peter; Yakushev, Evgeniy (Peer reviewed; Journal article, 2022)
      Northern Dvina River is one of the largest rivers in the European Arctic flowing into the White Sea through the populated regions with developed industry. Floating plastics include microplastics (0.5–5 mm) and mesoplastics ...

    • Biogeochemical structure of the Laptev Sea in 2015-2020 associated with the River Lena plume 

      Xie, Lina; Yakushev, Evgeniy; Semiletov, Igor; Grinko, Andrey; Gangnus, Ivan; Berezina, Anfisa; Osadchiev, Alexander; Zhdanov, Igor; Polukhin, Alexander; Moiseeva, Julia; Purgina, Darya; Pipko, Irina; Pugach, Svetlana; Dudarev, Oleg; Ge, Zhenming (Peer reviewed; Journal article, 2023)
      The discharge of rivers and the subsequent dispersion of their plumes play a pivotal role in the biogeochemical cycling of the Arctic Ocean. Based on the data collected during annual transects conducted in the autumn period ...

    • Differences in the Fate of Surface and Subsurface Microplastics: A Case Study in the Central Atlantic 

      Zhdanov, Igor; Pakhomova, Svetlana; Berezina, Anfisa; Silvestrova, Ksenia; Stepanova, Natalia; Yakushev, Evgeniy (Peer reviewed; Journal article, 2023)
      Plastic is recognized as a threat to marine ecosystems, and estimating the level of plastic and microplastics (MPs) pollution of the World Ocean is, nowadays, the goal of many studies. However, the use of different methods ...

    • Distribution of floating marine macro-litter in relation to oceanographic characteristics in the Russian Arctic Seas 

      Pogojeva, Maria; Zhdanov, Igor; Berezina, Anfisa; Lapenkov, Artem; Kosmach, Denis; Osadchiev, Alexander; Hanke, Georg; Semiletov, Igor; Yakushev, Evgeniy (Peer reviewed; Journal article, 2021)
      The main objectives of this work were the acquisition of new data on floating marine macro litter (FMML) and natural floating objects in the Arctic seas, an initial assessment of the level of pollution by FMML and an ...

    • Floating microplastics in Svalbard fjords: High spatial variability requires methodological consistency in estuarine systems 

      Pakhomova, Svetlana; Berezina, Anfisa; Zhdanov, Igor; Mekhova, Olga; Ilinskaya, Alisa; Golyakov, Alexey; Polivanova, Tatiana; Gebruk, Anna; Lusher, Amy Lorraine; Yakushev, Evgeniy (Peer reviewed; Journal article, 2024)
      Microplastic pollution was studied in surface waters of Isfjorden, Svalbard in July 2021 as a part of an international regional harmonisation exercise. Surface microplastics (0.5–5 mm) were sampled with a neuston net in ...

    • Floating Riverine Litter Flux to the White Sea: Seasonal Changes in Abundance and Composition 

      Mikusheva, Maria; Pogojeva, Maria; Kotova, Ekaterina; Kozhevnikov, Alexsander; Danilova, Eleonora; Berezina, Anfisa; Yakushev, Evgeniy (Peer reviewed; Journal article, 2023)
      Arctic rivers bring litter from their basins to the sea, but accurate data for the Arctic do not exist yet. This study presents the first assessment of floating macro litter input (>2.5 cm) from the Northern Dvina and Onega ...

    • Forbedring av oksygenforhold ved kunstig omrøring i Oslofjorden 

      Staalstrøm, Andre; Walday, Mats; Yakushev, Evgeniy; Pakhomova, Svetlana; Berezina, Anfisa; Golmen, Lars (NIVA-rapport;7874-2023, Research report, 2023)
      Indre Oslofjorden har ca. 11,4 km² med havbunn hvor vannmassen over er periodevis eller permanent anoksisk. I denne rapporten blir effekt av nedpumping av overflatevann på oksygenforholdene modellert. Det blir dokumentert ...

    • Microplastic variability in subsurface water from the Arctic to Antarctica 

      Pakhomova, Svetlana; Berezina, Anfisa; Lusher, Amy L.; Zhdanov, Igor; Silvestrova, Ksenia; Zavialov, Peter; van Bavel, Bert; Yakushev, Evgeniy (Peer reviewed; Journal article, 2022)
      Comparative investigations of microplastic (MP) occurrence in the global ocean are often hampered by the application of different methods. In this study, the same sampling and analytical approach was applied during five ...

    • Microplastics distribution in the Eurasian Arctic is affected by Atlantic waters and Siberian rivers 

      Yakushev, Evgeniy; Gebruk, Anna; Osadchiev, Alexander; Pakhomova, Svetlana; Lusher, Amy; Berezina, Anfisa; van Bavel, Bert; Vorozheikina, Elena; Chernykh, Denis; Kolbasova, Glafira; Razgon, Ilia; Semiletov, Igor (Peer reviewed; Journal article, 2021)
      Plastic pollution is globally recognised as a threat to marine ecosystems, habitats, and wildlife, and it has now reached remote locations such as the Arctic Ocean. Nevertheless, the distribution of microplastics in the ...

    • Model-Based Analysis of the Oxygen Budget in the Black Sea Water Column 

      Novikov, Matvey; Pakhomova, Svetlana; Berezina, Anfisa; Yakushev, Evgeniy (Peer reviewed; Journal article, 2024)
      Climate change and anthropogenic impacts drastically affect the biogeochemical regime of the Black Sea, which contains the largest volume of sulphidic water in the world. The Sea’s oxygen inventory depends on vertical ...

    • Modelling the influence from biota and organic matter on the transport dynamics of microplastics in the water column and bottom sediments in the Oslo fjord 

      Berezina, Anfisa; Yakushev, Evgeniy; Savchuk, Oleg; Vogelsang, Christian; Staalstrom, André (Peer reviewed; Journal article, 2021)
      The fate of microplastics (MP) in seawater is heavily influenced by the biota: the density of MP particles can be changed due to biofouling, which affects sinking, or MP can be digested by zooplankton and transferred into ...

    • Overvåkning for Porsgrunn og Bamble kommune i 2023 

      Staalstrøm, Andre; Berezina, Anfisa (NIVA-rapport;7967-2024, Research report, 2024)
      Det er utført en resipientundersøkelse i Frierfjorden, Eidangerfjorden og Langesundsfjorden i forbindelse med utslipp av kommunalt avløpsvann. Samlet klassifisering for vannmassene i E-1.1 i Eidangerfjorden fikk god tilstand ...

    • Surface microplastics in the Kara Sea: from the Kara Gate to the 83°N 

      Berezina, Anfisa; Pakhomova, Svetlana; Zhdanov, Igor; Mekhova, Olga; Polivanova, Tatiana; Novikov, Matvei; Pogojeva, Maria; Osadchiev, Alexander; Stepanova, Natalia; Yakushev, Evgeniy (Peer reviewed; Journal article, 2023)
      Despite ongoing research into microplastics pollution in the Arctic Ocean, the region remains underexplored. In the Eurasian Arctic studies mainly focus on the Barents Sea, while there are only limited and variable data ...

    • Understanding the Biogeochemical Impacts of Fish Farms Using a Benthic-Pelagic Model 

      Yakushev, Evgeniy; Wallhead, Philip; Renaud, Paul Eric; Ilinskaya, Alisa; Protsenko, Elizaveta; Yakubov, Shamil; Pakhomova, Svetlana; Sweetman, Andrew K; Dunlop, Kathy; Berezina, Anfisa; Bellerby, Richard; Dale, Trine (Peer reviewed; Journal article, 2020)
      Sustainable development of the salmon farming industry requires knowledge of the biogeochemical impacts of fish farm emissions. To investigate the spatial and temporal scales of farm impacts on the water column and benthic ...

    • Årsovervåkning med FerryBox og satellittdata- Indre Oslofjord 2022 - Datarapport 

      Eikrem, Wenche; Valestrand, Louise; Harvey, E. Therese; Saesin, Pipatthra; Berezina, Anfisa; Tobiesen, August E.Dessen (NIVA-rapport;7859-2023, Research report, 2023)
      Denne rapporten presenterer resultatene fra årsovervåkningen utført for Fagrådet for vann- og avløpsteknisk samarbeid i indre Oslofjord i 2022 med bruk av NIVAs FerryBox system for måling og prøveinnsamling og fjernmålingsdata ...