Here you can find a list of all ARCTOS members and PhD students. In the drop-down menu you can either select the member status or the institution the member belongs to.

Photo of Alexey Pavlov

Alexey Pavlov

Adviser and Manager

Research interests:
  • Interdisciplinary Arctic research
  • Ocean and sea-ice optics
  • Physical oceanography
  • Linkages between physical, biogeochemical and biological processes in the Arctic Ocean
  • Arctic Ocean, Svalbard, Fram Strait, White Sea
  • Science communication and outreach, particularly via social media.
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Akvaplan-niva and Arctic Frontiers Science Work address Akvaplan-niva AS Fram Centre Tromsø 9296 Norway Work Phone: +47 77 60 84 13 Website: ORCID Website: Researchgate Website: Google Scholar

Research interests:

  • Interdisciplinary Arctic research
  • Ocean and sea-ice optics
  • Physical oceanography
  • Linkages between physical, biogeochemical and biological processes in the Arctic Ocean
  • Arctic Ocean, Svalbard, Fram Strait, White Sea
  • Science communication and outreach, particularly via social media.

Running national and international projects:

  • FreshFate: Freshwater inputs to Svalbard’s coastal waters: Fluxes, fate, and implications for coastal Ecosystems (Fram Centre, 2019-2021)
  • DarkFjords: Monitoring Darkening of Svalbard Fjords from space (Svalbard Miljøvernfond, 2019-2020)

Completed national and international projects:

  • ICE-ARC: Ice, Climate, Economicis – Arctic Research on Change (EU FP7, 2014-2017)
  • STASIS: Solar Transmittance in the Arctic as a Seasonally Ice-covered Sea (Research Council of Norway, 2013-2017)
  • CDOM-Heat: Source and transformation of Chromophoric Dissolved Organic Matter and its role in surface ocean heating and carbon cycling in Nordic Seas and European Arctic (Norway Grants, 2013-2016)
  • N-ICE 2015 – Norwegian young sea ICE cruise

Commissions of trust:

  • Executive Committee member, Arctic in Rapid Transition (ART) network of the International Arctic Science Committee (IASC), since 2013
  • Reviewer of peer-reviewed journals: Journal of Geophysical Research: Oceans, Continental Shelf Research, Journal of Marine Systems, Marine Chemistry, Bulletin of the American Meteorological Society, Ocean Science, Polar Science, Water, Oceanologia
  • Reviewer of scientific proposals: National Science Foundation (NSF, USA), National Fund for Scientific and Technological Development (FONDECYT, Chile)

Relevant scientific publications:

  1. Pavlov, A.K., Leu, E., et al. (2019). The underwater light climate in Kongsfjorden and its ecological implications. In: Hop H, Wiencke C (eds) The ecosystem of Kongsfjorden, Svalbard. Advances in Polar Ecology 2, Springer Verlag.
  2. Werner, K., Zaika, Y., Pavlov, A.K., et al. (2019). Project and Community Management in Polar Sciences–Challenges and Opportunities. Advances in Geosciences, 46, pp.25-43.
  3. Olsen, L. M., Duarte, P., … Pavlov, A.K. … & Wagner, P. M. (2019). A red tide in the pack ice of the Arctic Ocean. Scientific reports, 9(1), 9536.
  4. Halbach, L., Assmy, P., … Pavlov, A.K., et al. (2019). Tidewater glaciers and bedrock characteristics control the phytoplankton growth environment in an Arctic fjord. Frontiers in Marine Science, 6, p.254.
  5. Kauko, H.M., Pavlov, A.K., et al. (2019). Photoacclimation state of an Arctic under‐ice phytoplankton bloom. Journal of Geophysical Research: Oceans, doi: 10.1029/2018JC014777.
  6. Kowalczuk, P., Sagan, S., … and Pavlov, A.K. (2019). Bio‐optical Properties of Surface Waters in the Atlantic Water Inflow Region off Spitsbergen (Arctic Ocean). Journal of Geophysical Research: Oceans, doi:10.1029/2018JC014529.
  7. Pavlov, A.K., et al (2018). @oceanseaicenpi: communicating polar science via social media. Fram Forum, 136-138.
  8. Pavlov, A.K., Meyer, A., et al. (2018). Does your lab use social media?: Sharing three years of experience in science communication. Bulletin of the American Meteorological Society, 99(6), pp.1135-1146.
  9. Meyer, A., Pavlov, A.K., et al. (2018). Science outreach using social media: Oceanography from the lab to the public. Oceanography, 31(2), pp.11-15.
  10. Kauko, H.M., Olsen, L.M., … Pavlov, A.K., et al. (2018). Algal colonization of young Arctic sea ice in spring. Frontiers in Marine Science, 5(199).
  11. Makarewicz, A., Kowalczuk, P., Sagan, S., Granskog, M.A., Pavlov, A.K., et al. (2018). Characteristics of chromophoric and fluorescent dissolved organic matter in the Nordic Seas. Ocean Science, 14(3), pp.543-562.
  12. Pavlov, A.K., Taskjelle, T., et al. (2017). Altered inherent optical properties and estimates of the underwater light field during an Arctic under ice bloom of Phaeocystis pouchetii. JGR – Oceans, doi:10.1002/2016JC012471
  13. Kauko, H.M., Taskjelle, T., Pavlov, A.K., et al. (2017). Windows in Arctic sea ice: light transmission and ice algal optical properties in a refrozen lead. JGR – Biogeosciences, doi:10.1002/2016JG003626
  14. Taskjelle, T., Granskog, M.A., Pavlov, A.K., Hudson, S.R., Hamre, B. (2017). Effects of an Arctic under-ice bloom on solar radiant heating of the water column. JGR – Oceans, doi:10.1002/2016JC012187
  15. Kowalczuk, P., Meler, J., Kauko, H., Pavlov, A.K., et al. (2017). Bio‐optical properties of Arctic drift ice and surface waters north of Svalbard from winter to spring. JGR – Oceans, doi:10.1002/2016JC012589
  16. Assmy, P., Fernández-Méndez, M., … Pavlov, A.K., et al. (2017). Leads in Arctic pack ice enable early phytoplankton blooms below snow-covered sea ice. Scientific reports, doi:10.1038/srep40850
  17. Olsen, L.M., Laney, S.R., … Pavlov, A.K., et al. (2017). The seeding of ice‐algal blooms in Arctic pack ice: the multiyear ice seed repository hypothesis. JGR – Biogeosciences, doi:10.1002/2016JG003668
  18. Pavlov, A.K., Stedmon, C.A., et al. (2016). Linkages between the circulation and distribution of dissolved organic matter in the White Sea, Arctic Ocean. Continental Shelf Research, doi:10.1016/j.csr.2016.03.004.
  19. Werner, K., Fritz, M., … Pavlov, A.K., et al. (2016). Arctic in Rapid Transition: Priorities for the future of marine and coastal research in the Arctic. Polar Science, doi:10.1016/j.polar.2016.04.005.
  20. Wang, C., Granskog, M.A., … Pavlov, A.K., et al. (2016). Atmospheric conditions in the central Arctic Ocean through the melt seasons of 2012 and 2013: Impact on surface conditions and solar energy deposition into the ice-ocean system. JGR – Atmospheres, doi:10.1002/2015JD023712.
  21. Pavlov, A.K., M.A. Granskog, et al. (2015). Contrasting optical properties of surface waters across the Fram Strait and its potential biological implications, Journal of Marine Systems, doi:10.1016/j.jmarsys.2014.11.001.
  22. Granskog, M. A., Pavlov, A. K., et al. (2015). Effect of sea‐ice melt on inherent optical properties and vertical distribution of solar radiant heating in Arctic surface waters. JGR – Oceans, doi:10.1002/2015JC011087.
  23. Kędra, M., Pavlov, A.K., Wegner, C. and Forest, A. (2015). Foreword to the thematic cluster: the Arctic in Rapid Transition-marine ecosystems. Polar Research, doi:10.3402/polar.v34.30684.
  24. Findlay, H.S., Gibson, G., … Pavlov, A.K., et al. (2015). Responses in Arctic marine carbon cycle processes: conceptual scenarios and implications for ecosystem function, Polar Research, doi:10.3402/polar.v34.24252.
  25. Pavlov, A.K., Silyakova, A., et al. (2014). Marine CDOM accumulation during a coastal Arctic mesocosm experiment: No response to elevated pCO2 levels. JGR – Biogeosciences, doi:10.1002/2013JG002587.
  26. Manno, C., and Pavlov, A.K. (2014). Living planktonic foraminifera in the Fram Strait (Arctic): absence of diel vertical migration during the midnight sun, Hydrobiologia. 721(1), 285-295.
  27. Ivanov, B., Sviashchennikov, P., Zhuravskiy, D., Pavlov, A.K., Førland, E., Isaksen, K. (2014). Sea ice metadata for Billefjorden and Grønfjorden, Svalbard. Czech Polar Reports 2(4): 129–139, doi:10.5817/CPR2014-2-13
  28. Ivanov, B.V., P. N. Sviashchennikov, D. M. Zhuravskiy, K. Pavlov, and E. J. Forland (2014). Metadata for a long-term climate series from the Russian meteorological station “Pyramiden” (1948-1957) at Svalbard, Czech Polar Reports, 4 (1): 57-62, doi: 10.5817/CPR2014-1-6.
  29. Pavlov, A.K., Tverberg, V., et al. (2013). Warming of Atlantic Water in two west Spitsbergen fjords over the last century (1912-2009). Polar Research, 32, doi:10.3402/polar.v32i0.11206.
  30. Forest, A., Kedra, M., and Pavlov, A. (2013). Bridging Time Scales, Disciplines, and Generations to Better Understand the Arctic Marine Ecosystem. Eos, Transactions American Geophysical Union, 94(11), 107-107.
  31. Granskog, M. A., Stedmon, … Pavlov, A.K., et al. (2012). Characteristics of colored dissolved organic matter (CDOM) in the Arctic outflow in the Fram Strait: Assessing the changes and fate of terrigenous CDOM in the Arctic Ocean. JGR – Oceans, 117(C12).
  32. Zhuravskiy, D., Ivanov, B., and Pavlov, A.K. (2012). Ice conditions at Gronfjorden Bay, Svalbard, from 1974 to 2008. Polar Geography, 35(2), 169-176.

Outreach and science communication:

Photo of Vanessa Pitusi

Vanessa Pitusi

PhD Candidate

PhD project title: Biodiversity of sympagic meiofauna in Svalbard.…Read More
UNIS – The University Centre in SvalbardArctic Biology Work address UNIS – The University Centre in Svalbard Post box 156 Longyearbyen 9171 Svalbard

PhD project title:

Biodiversity of sympagic meiofauna in Svalbard.

PhD project description:

To study the biodiversity of sympagic meiofauna in sea ice in Svalbard using an integrative taxonomy based approach, and to determine the role of sea ice for this fauna.

Start date: 01.05.2021
Planned submission date: 30.04.2023


Janne Søreide (UNIS, Svalbard)
Kim Præbel (UiT, Tromsø, Norway)
Oleksandr Holovachov (Swedish Museum of Natural History)

Scientific publications:

  1. Pitusi, V., Søreide, J.E., Hassett, B.T. et al.The occurrence of Nematoda in coastal sea ice on Svalbard (European Arctic) determined with the 18S small subunit rRNA gene. Polar Biol 44, 1153–1162 (2021).
  2. Søreide JE, Pitusi V, Vader A et al (2021) Environmental status of Svalbard coastal waters: coastscapes and focal ecosystem components (SvalCoast). In: Moreno-Ibáñez et al (eds) SESS report 2020, Svalbard Integrated Arctic Earth Observing System, Longyearbyen, pp 142–175. Accessed 15 Jan 2021
  3. Andreasen, M.H., Søreide, J., Øvreås, L., Pitusi, V., Marquardt, M. (in progess). First insight into the coastal sea ice fauna in Eastern Svalbard. Frontiers in Marine Science.
  4. Marquardt, M., Majaneva, S., Pitusi, V. et al. Polar Biology (2017). – Pan-Arctic distribution of the hydrozoan Sympagohydra tuuli? First record in sea ice from Svalbard (European Arctic).

Popular Science and Outreach:

27.05.2021: Teamwork makes dream work
22.05.2021: Hidden biodiversity inside of Svalbard’s sea ice
30.09.2020: Stepping back into the past – UNIS repeat a 30-year old beach study in Storfjorden
07.07.2020: 2020 – A good sea ice year in Svalbard?
22.05.2020: Biodiversity Day in Svalbard
09.07.2018: First record of the hydrozoan Sympagohydra tuuli in Svalbard sea ice
Denne lille rakkeren lever inne i sjøisen (

Photo of Benjamin Planque

Benjamin Planque

Senior scientist

Research interests:
  • fish ecology
  • climate impact on marine populations
  • fish stock assessment modelling
  • spatial ecology
  • foodweb modelling
  • marine ecosystem resilience
  • mesopelagic ecosystems.
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Institute of Marine ResearchDeep-water species and cartilaginous fish research group Work address Institute of Marine Research, Tromsø Fram Centre Hjalmar Johansens gate 14 Tromsø 9007 Norway Work Phone: + 47 77 60 97 22

Research interests:

  • fish ecology
  • climate impact on marine populations
  • fish stock assessment modelling
  • spatial ecology
  • foodweb modelling
  • marine ecosystem resilience
  • mesopelagic ecosystems.

International, national and institutional involvement:

I have been a member of GLOBEC (Global Ocean Ecosystem dynamics) Focus 1 Working Group on retrospective analysis and time series studies and I was involved in the GLOBEC-SPACC initiative (Small Pelagics and Climate Change).

I have been a member and chair of several expert groups at the International Council for the Exploration of the Sea (ICES). I am currently co-chairing the Working Group on International Deep Pelagic Surveys (WIDEEPS) and member of the Arctic Fisheries Working Group (AFWG).

I have been a member of the Sir Alister Hardy Foundation for Ocean Science (SAHFOS, UK) board of directors (2001-2005) and a member of the council as sponsoring governor of the foundation on behalf of fremer (2006-2007).

I have participated in the EU-projects TASC, SAP, UNCOVER, RECLAIM and DEEPFISHMAN.

I have been part of the Marine Ecology Progress Series board of review editors (1998-2005) and was associate editor for Fisheries Oceanography (2007-2010). I have refereed more than 250 manuscripts and proposals.

Selected publications:

  1. Siegelman-Charbit, L., and Planque, B. (2016). Abundant mesopelagic fauna at oceanic high latitudes. Marine Ecology Progress Series, 546: 277-282.
  2. Planque, B., U. Lindstrøm, and Subbey, S. 2014. Non-deterministic modelling of food-web dynamics. PLoS ONE, 9:e108243.
  3. Planque, B., R. Primicerio, K. Michalsen, et al. 2014. Who eats whom in the Barents Sea: a foodweb topology from plankton to whales. Ecology, 95:1430.
  4. Planque, B., Bellier, E., and Loots, C. 2011. Uncertainties in projecting spatial distributions of marine populations. ICES Journal of Marine Science, 68: 1045-1050.
  5. Planque, B., Loots, C., Lindstrøm, U., Petitgas, P., Vaz, S., 2011. Understanding what controls the spatial distribution of fish populations using a multi-model approach. Fisheries Oceanography, 20, 1-17.
  6. Planque, B., Fromentin, J.-M., Cury, P., Drinkwater, K.F., Jennings, S., Perry, R.I. and Kifani, S. 2010 How does fishing alter marine populations and ecosystems sensitivity to climate? Journal of Marine Systems, 79, 403-417

Citation profile: Number of publications: 56. Citations: 3192. H-index: 28 (source ISI Web of knowledge, August 2017)

Photo of Amanda Poste

Amanda Poste


Research interests:
  • Climate change impacts on freshwater and coastal ecosystems
  • Biogeochemistry
  • Food web ecology
  • Cycling and food web accumulation of contaminants
  • Land-ocean interactions
  • Cross-ecosystem approaches (from catchment to freshwater to coast).
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Norwegian Institute for Water Research (NIVA) Work address Norwegian Institute for Water Research Fram centre Hjalmar Johansens gate 14 Tromsø 9007 Norway Work Phone: +47 98 21 54 79 Website: Google Scholar Website: ResearchGate

Research interests:

  • Climate change impacts on freshwater and coastal ecosystems
  • Biogeochemistry
  • Food web ecology
  • Cycling and food web accumulation of contaminants
  • Land-ocean interactions
  • Cross-ecosystem approaches (from catchment to freshwater to coast).

I am an aquatic ecologist interested in taking integrative and interdisciplinary approaches in order to gain an understanding of the complex and diverse stressors that currently face freshwater and coastal environments.

Selected national and international projects:

  • TerrACE: Effects of terrestrial inputs on Arctic coastal ecosystems (NFR: 2017-2021)
  • FreshFate: Fluxes, fate and impacts of freshwater inputs to Svalbard’s coastal waters (Framsenter: 2019-2021)
  • LakeIce: High-latitude lake ecosystems under ice (Framsenter: 2020)
  • Climer: Drivers of mercury in freshwater fish in northern lake ecosystems (NFR: 2015-2018)

Scientific publications (Aug 2020):

  1. McGovern, M.*; Pavlov, A.; Deininger, A.; Granskog, M.A.; Leu, E.; Søreide, J.E.; Poste, A.E. Terrestrial inputs drive seasonality in organic matter and nutrient biogeochemistry in a high Arctic fjord system. Frontiers in Marine Science, 2020, doi: 10.3389/fmars.2020.542563.
  2. McGovern, M.*; Poste, A.E.; Oug, E.; Renaud, P.E.; Trannum, H.C. Riverine impacts on benthic biodiversity and functional traits: A comparison of two sub-Arctic fjords. Estuarine, Costal and Shelf Science, 2020, 240, 106774.
  3. McGovern, M.*; Evenset, A.; Borgå, K.; de Wit, H.; Braaten, H.F.V.; Hessen, D.O.; Schultze, S.*; Ruus, A.; Poste, A.E. Implications of coastal darkening for contaminant transport, bioavailability, and trophic transfer in northern coastal waters. Viewpoint Article in Environmental Science and Technology, 2019, doi: 10.1021/acs.est.9b03093
  4. Poste, A.E.; Skaar Hoel, C.* (joint first authors); Andersen, T.; Arts, M.; Færøvig, P.-J., Borgå, K. Terrestrial organic matter increases zooplankton methylmercury accumulation in a brown water boreal lake. Science of the Total Environment, 2019, 674, 9–18.
  5. Braaten, H.F.V.; Åkerblom, S.; Kahilainen, K.K.; Rask, M.; Vuorenmaa, J.; Mannio, J.; Malinen, T.; Lydersen, E.; Poste, A.E.; Amundsen, P.-A.; Kashulin, N.; Kashulina, T.; Terentyev, P.; Christensen, G.; de Wit, H.A. Improved environmental status: 50 years of declining fish mercury levels in boreal and subarctic Fennoscandia. Environmental Science and Technology, 2019, 53, 1834-1843.
  6. Poste, A.E.; Pastukhov M.V.; Braaten H.F.V.; Ozersky, T.; Moore, M. Past and present mercury accumulation in the Lake Baikal seal: Temporal trends, effects of life history and toxicological implications. Environmental Toxicology and Chemistry, 2018, DOI: 10.1002/etc.4095.
  7. Braaten, H.F.V.; de Wit, H.A.; Larssen, T.; Poste, A.E. Mercury in fish from Norwegian lakes: The complex influence of aqueous organic carbon. Science of the Total Environment 2018, 627, 341–348.
  8. Everaert, G.; Ruus, A.; Hjermann, D.Ø.; Borgå, K.; Green, N.; Boitsov, S.; Jensen, H.; Poste, A.E. Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments. Environmental Science and Technology 2017, DOI: 10.1021/acs.est.7b02964.
  9. Ozersky, T.; Pastukhov, M.V.; Poste, A.E.; Deng, X.Y.; Moore, M.V. Long-term and ontogenetic patterns of heavy metal contamination in Lake Baikal seals (Pusa sibirica). Environmental Science and Technology 2017, DOI: 10.1021/acs.est.7b00995.
  10. Kishe-Machumu, M.; van Rijssel J.; Poste, A.E.; Hecky, R.E.; Witte, F. Stable isotope evidence from formalin-ethanol preserved specimens indicates dietary shifts and increasing diet overlap in Lake Victoria cichlids. Hydrobiologia 2016, DOI: 10.1007/s10750-016-2925-1
  11. Poste, A.E.; Muir, D.C.G.; Guildford, S.J.; Hecky, R.E. Bioaccumulation and biomagnification of mercury in African lakes: The importance of trophic status. Science of the Total Environment 2015, 506, 126–136.
  12. Poste, A.E.; Braaten, H.F. (joint first authors); de Wit, H.A.; Sørensen, K.; Larssen, T. Effects of photodemethylation on the methylmercury budget of boreal Norwegian lakes. Environmental Toxicology and Chemistry 2015, DOI: 10.1002/etc.2923
  13. Hanna, D.; Solomon, C.; Poste, A.E.; Buck, D.; Chapman, L. A review of mercury concentrations in freshwater fishes of Africa: Patterns and predictors. Environmental Toxicology and Chemistry 2015, 34, 215–223.
  14. Poste, A.E.; Grung, M.; Wright, R.F. Amines and amine-related compounds in surface waters: A review of sources, concentrations and aquatic toxicity. Science of the Total Environment 2014, 481, 274–279.
  15. Poste, A.E.; Hecky, R.E; Guildford, S.J. Phosphorus enrichment and carbon depletion contribute to high Microcystis biomass and microcystin concentrations in Ugandan lakes. Limnology and Oceanography 2013, 58, 1075-1088.
  16. Poste, A.E.; Ozersky, T. (joint first authors) Invasive dreissenid mussels and round gobies: a benthic pathway for the trophic transfer of microcystin. Environmental Toxicology and Chemistry 2013, 32, 2159–2164.
  17. Poste, A.E.; Muir, D.C.G.; Mbabazi, D.; Hecky, R.E. Food web structure and mercury trophodynamics in two contrasting embayments in northern Lake Victoria. Journal of Great Lakes Research 2012, 38, 699–707.
  18. Poste, A.E.; Muir, D.C.G.; Otu, M.K.; Hall, R.I.; Hecky, R.E. Past and present mercury flux to a West African crater lake (Lake Bosomtwe/Bosumtwi, Ghana). Science of the Total Environment 2012, 420, 340–344.
  19. Futter, M.N., Poste, A.E., Butterfield, D.; Dillon, P.J.; Whitehead, P.G.; Dastoor, A.P.; Lean, D.R.S. Using the INCA-Hg model of mercury cycling to simulate total and methyl mercury concentrations in forest streams and catchments. Science of the Total Environment 2012, 424, 219–231.
  20. Poste, A.E.; Hecky, R.E.; Guildford, S.J. Evaluating microcystin exposure risk through fish consumption. Environmental Science and Technology 2011, 45(13), 5806–5811.
  21. Poste, A.E.; Hecky, R.E.; Muir, D.C.G. Biomagnification of mercury in a West African crater lake (Lake Bosomtwe, Ghana). Verh. Internat. Verein. Limnol. 2008, 30(4), 647–650.