Members

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.

A B C D E F G H I K L M N O P R S V W Z
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Anna Vader

Researcher

Research interests:
  • Activity and biodiversity of arctic protists (mainly pico- and nano-eukaryotes)
  • Marine food chains (the use of molecular tools for prey studies of zooplankton)
  • RNA biology
Running national and international projects:
  • MicroFUN - Investigation of the the biodiversity and function of terrestrial and marine microbial eukaryotes in Svalbard
 Read More
UNIS – The University Centre in SvalbardArctic Biology Work address UNIS – The University Centre in Svalbard Post box 156 Longyearbyen 9171 Norway Work Phone: +47 79 02 33 59

Research interests:

  • Activity and biodiversity of arctic protists (mainly pico- and nano-eukaryotes)
  • Marine food chains (the use of molecular tools for prey studies of zooplankton)
  • RNA biology

Running national and international projects:

  • MicroFUN – Investigation of the the biodiversity and function of terrestrial and marine microbial eukaryotes in Svalbard

 

Photo of Øystein Varpe

Øystein Varpe

Professor

Research interests:
  • Evolutionary and Seasonal Ecology
  • Main aim: understand why we observe variation in life histories and behavior and how this variation influences interactions, populations and ecosystems.
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University of BergenDepartment of Biological Sciences Address Department of Biological Sciences (BIO) University of Bergen Post box 7803 Bergen 5020 Norway Cell Phone: + 47 97 76 26 45 Website: Seasonal Ecology Group

Research interests:

  • Evolutionary and Seasonal Ecology
  • Main aim: understand why we observe variation in life histories and behavior and how this variation influences interactions, populations and ecosystems.

I work in highly seasonal environments and study the scheduling of annual events and the trade-offs involved. Key traits: reproduction, energy storage, dormancy and migrations. What is the scope of state-dependent responses? What is the role of phenotypic plasticity versus evolution? Most of my work is on the ecology and evolution of birds, fish and zooplankton using mathematical models and statistical analyses of data. An important component of my work is to use the insights we gain to understand and predict how organisms respond to environmental variability and change, with pollution, harvesting and climate change as central stressors.

Student project opportunities:

If you find some of our research of interest and wish to do a student project (bachelor, master or PhD), please contact me for current opportunities or with own suggestions. Examples of past master students:

  • Marine Cusa (2016) The effect of seasonality on polar cod (Boreogadus saida) dietary habits and temporal feeding strategies in Svalbard waters.
  • Tom Jasper Langbehn (2015) Feeding success in an extreme-light environment: modelling seasonal prey encounter of Arctic fish.
  • Caitlin Frankish (2015) A meta-ecosystem model: seabirds as vectors
  • Samuel Louis Eglund Newby (2015) Feeding activity and diet of Arctic and boreal fish species during the polar night
  • Zofia Burr (2014) Breeding later at higher latitudes: explaining seabird reproductive timing in the northeastern Atlantic.
  • Jordan Grigor (2011) An investigation into strategies of protandrous emergence and arrival in Calanus spp.
  • Beke Regelin (2011) Purple sandpipers (Calidris maritima) feeding in an Arctic estuary: tidal cycle and seasonal dynamics in abundance.
  • Allison Bailey (2010) Lipids and diapause in Calanus spp. in a high-Arctic fjord: state-dependent strategies?
  • Anika Beiersdorf (2009) Foraging trip duration in relation to body mass: are little auks heavier following longer or shorter trips?

Please also visit the Seasonal Ecology Group – an umbrella for my work and supervision.

Running national and international projects (some expamples):

  • SEATIME – Timing of reproduction in seabirds: large-scale comparisons, and links to population dynamics, climate and lower trophic levels. (Fram Centre Flagship Project).
  • Numerical competence and student-active research (Thon stiftelsen)
  • Stochastic fluctuations and the evolution of zooplankton life histories in high latitude marine ecosystems (Polish Research Council)

Peer reviewed publications (see also Google Scholar or ResearchGate):

Selected popular science and outreach:

Links:

Fulbright Arctic Initiative Scholar 2015-2016

Video of talk on ecological consequences of sea ice changes in the Arctic.

Photo of Ireen Vieweg

Ireen Vieweg

Post-doctoral researcher

Research interests:
  • Marine Ecotoxicology in Polar regions
  • Polar cod ecology
  • Fish physiology.
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UiT The Arctic University of NorwayArctic and Marine Biology Work address Department of Arctic and Marine Biology Faculty of Biosciences, Fisheries and Economics UiT The Arctic University of Norway Tromsø 9037 Norway Work Phone: +47 77 62 33 01

Research interests:

  • Marine Ecotoxicology in Polar regions
  • Polar cod ecology
  • Fish physiology.

With my research, I would like to provide new knowledge on how anthropogenic activity in Arctic regions affect the fitness and survival of key species in this pristine marine ecosystem. Hence, my research combines the study of basic ecological traits of marine organisms with the performance of exposure experiments in order to evaluate the threat of contamination for marine organisms in the Arctic. As key species in the Arctic marine ecosystem, polar cod has been the focal species of my research during the last years. In my PhD thesis, I investigated the biological effects of crude oil on essential physiological processes related to the fitness of polar cod. This work was part of the project POLARISATION (Norwegian Research Council # 214184, http://site.uit.no/polarisation/) and supervised by Jasmine Nahrgang.

Scientific publications:

  1. Vieweg, I., Benedetti, M., Lanzoni, I., Regoli, F., Nahrgang, J. (2017). Antioxidant defenses in polar cod (Boreogadus saida) and responsiveness toward dietary crude oil exposure. Marine Environmental Research 130: 48-59. doi: 10.1016/j.marenvres.2017.06.005.
  2. Bender, M.L., Frantzen, M., Vieweg, I., Falk- Petersen, I.B., Johnsen, H.K., Rudolfsen, G., Tollefsen, K.E. Dubourg, P., Nahrgang, J. (2016). Effects of chronic dietary petroleum exposure on reproductive development in polar cod (Boreogadus saida). Aquatic Toxicology 180, 196-208. doi: 10.1016/j.aquatox.2016.10.005.
  3. Nahrgang, J. M., Varpe, Ø, Korshunova, E., Murzina, S., Hallanger, I.G., Vieweg, I., Berge, J. (2014). Gender specific reproductive strategies of an Arctic key species (Boreogadus saida) and implication of climate change. PLOS ONE 9 (5), 1-11, doi: 10.1371/journal.pone.0098452.
  4. Vieweg, I., Hop, H., Brey, T., Huber, S., Ambrose, W.G., Locke, W.L.V., Gabrielsen, G.W. (2012).Persistent organic pollutants in four bivalve species from Svalbard waters. Environmental Pollution. 161: 134 – 142. doi: 10.1016/j.envpol.2011.10.018.

Popular science and outreach:

Photo of Mikko Vihtakari

Mikko Vihtakari

Post-doctoral researcher

Marine biologist specialized in climate-ecosystem interactions in the Arctic, numerical ecology and statistical programming.…Read More
Institute of Marine Research Work address Institute of Marine Research Fram Centre Tromsø

Marine biologist specialized in climate-ecosystem interactions in the Arctic, numerical ecology and statistical programming.

Research interests:

  • Climate change effects on Arctic marine ecosystems
  • General marine ecology
  • Numerical ecology
  • Statistics
  • Ecological modelling
  • Greenland halibut
  • Sclerochronology
  • Inorganic geochemistry
  • Scientific diving

 

Current projects:

  • Greenland halibut population structure and migrations in the North Atlantic

Relevant scientific publications and reports:

Popular science and outreach:

Photo of Daniel Ludwig Vogedes

Daniel Ludwig Vogedes

Technician

Research interests:
  • Zooplankton ecology
  • Polar Night biology
  • Underwater observatories.
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UiT The Arctic University of NorwayArctic and Marine Biology Work address Department of Arctic and Marine Biology Faculty of Biosciences, Fisheries and Economics UiT The Arctic University of Norway Tromsø 9037 Norway Work Phone: +47 77 64 91 71 Website: Marine Night project

Research interests:

  • Zooplankton ecology
  • Polar Night biology
  • Underwater observatories.

Running national and international projects:

Contributing logistical support to:

Completed national and international projects:

Contributed logistical support to:

Relevant scientific publications:

  1. Berge, Jørgen; Daase, Malin; Renaud, Paul; Ambrose, William G. Jr.; Darnis, Gérald; Last, Kim S; Leu, Eva; Cohen, Jonathan H.; Johnsen, Geir; Moline, Mark A.; Cottier, Finlo; Varpe, Øystein; Shunatova, Natalia; Balazy, Piotr; Morata, Nathalie; Massabuau, Jean Charles; Falk-Petersen, Stig; Kosobokova, Ksenia; Hoppe, Clara JM; Weslawski, Jan Marcin; Kuklinski, Piotr; Legezynska, Joanna; Nikishina, Daria; Cusa, Marine; Kedra, Monika; Wlodarska-Kowalczuk, Maria; Vogedes, Daniel Ludwig; Camus, Lionel; Tran, Damien; Michaud, Emma; Gabrielsen, Tove M.; Granovitch, Andrei; Gonchar, Anya; Krapp, Rupert; Callesen, Trine A. Unexpected Levels of Biological Activity during the Polar Night Offer New Perspectives on a Warming Arctic. Current Biology 2015 ;Volume 25. p. 1-7 doi:10.1016/j.cub.2015.08.024
  2. Vogedes, Daniel Ludwig. Calanus spp. in the Arctic ecosystem: A story on predation, distribution and methodology. 2014. PhD thesis. http://munin.uit.no/handle/10037/6807
  3. Vogedes, Daniel Ludwig; Eiane, Ketil; Båtnes, Anna Solvang; Berge, Jørgen. Variability in Calanus spp. abundance on fine- to mesoscales in an Arctic fjord: implications for little auk feeding. Marine Biology Research 2014; Volum 10 (5). ISSN 1745-1000.s 437 – 448.s doi: 10.1080/17451000.2013.815781.
  4. Gabrielsen, Tove M; Merkel, Benjamin; Søreide, Janne; Johansson-Karlsson, Emma; Bailey, Allison; Vogedes, Daniel Ludwig; Nygård, Henrik Andreas; Varpe, Øystein; Berge, Jørgen. Potential misidentifications of two climate indicator species of the marine arctic ecosystem: Calanus glacialis and C. finmarchicus. Polar Biology 2012; Volum 35 (11). ISSN 0722-4060.s 1621 – 1628.s doi: 10.1007/s00300-012-1202-7.
  5. Vogedes, Daniel; Varpe, Øystein; Søreide, Janne; Graeve, M; Berge, Jørgen; Falk-Petersen, Stig. Lipid sac area as a proxy for individual lipid content of arctic calanoid copepods. Journal of Plankton Research 2010; Volum 32 (10). ISSN 0142-7873.s 1471 – 1477.s doi: 10.1093/plankt/fbq068.
  6. Berge, Jørgen; Cottier, Finlo; Last, Kim S.; Varpe, Øystein; Leu, Eva; Søreide, Janne; Eiane, Ketil; Falk-Petersen, S.; Willis, Kate; Nygård, Henrik; Vogedes, Daniel; Griffiths, Collin; Johnsen, Geir; Lorentzen, Dag Arne; Brierley, A.S.. Diel vertical migration of Arctic zooplankton during the polar night. Biology Letters 2009; Volum 5 (1). ISSN 1744-9561.s 69 – 72.s doi: 10.1098/rsbl.2008.0484.
  7. Daase, Malin; Eiane, Ketil; Aksnes, D.L.; Vogedes, Daniel. Vertical distribution of Calanus spp. and Metridia longa at four Arctic locations. Marine Biology Research 2008; Volum 4 (3). ISSN 1745-1000.s 193 – 207.s doi: 10.1080/17451000801907948.
  8. Steen, H.; Vogedes, Daniel; Broms, F.; Falk-Petersen, S.; Berge, Jørgen. Little auks (Alle alle) breeding in a High Arctic fjord system: bimodal foraging strategies as a response to poor food quality?. Polar Research 2007; Volum 26 (2). ISSN 0800-0395.s 118 – 125.s doi: 10.1111/j.1751-8369.2007.00022.x.

Popular science and outreach:

 

Photo of Tobias Vonnahme

Tobias Vonnahme

PhD candidate

PhD project title: Microbial carbon cycling in the seasonal ice zone: linking observations and experiments to dynamic modelling Project description: The carbon cycle in the seasonal ice zone is highly dynamic over the year and and in a changing climate.…Read More
UiT The Arctic University of NorwayArctic and Marine Biology Work address Department of Arctic and Marine Biology Faculty of Biosciences, Fisheries and Economics UiT The Arctic University of Norway Tromsø 9037 Norway Work Phone: +47 77 64 48 28 Website: UiT profile Website: Arctic SIZE project Website: google scholar profile

PhD project title:

Microbial carbon cycling in the seasonal ice zone: linking observations and experiments to dynamic modelling

Project description:

The carbon cycle in the seasonal ice zone is highly dynamic over the year and and in a changing climate. Light limitations in the polar night, ice formation and melt, and nutrient limitations are some of these dynamic factors. Dynamic ecosystem models are still neglecting these dynamics and the physiological mechanisms of algae and bacteria to deal with it. The aim of my PhD is to study Three important processes in the microbial carbon cycle in the seasonal ice zone which are poorly characterized in current ecosystem models; 1) heterotrophic carbon uptake in microalgae as response to light and nutrient limitation, also as potential survial strategy in the polar night; 2) The role of bacteria as competitors or commensalists via nutrient recycling under different light and nutrient conditions; 3) The role of tidewater outlet glaciers on microbial communities and their function in the ecosystem.  I will quantify the role of the Three processes in the carbon cycle and show their importance in dynamic ecosystem models. The results will help to understand the importance of key processs and to improve predictions on the effect of climate change on the  carbon cycle.

Start date: March 2017
Planned submission date: March 2020

Supervisors:

Rolf Gradinger (UiT – The Arctic University of Norway, Tromsø, Norway)

Dick van Oevelen (NIOZ – Royal Netherlands Institute for Sea Research, Netherlands)

Tron Frede Thingstad (UiB – The University of Bergen, Norway),

Geir Johnsen (NTNU – Norwegian University of Science and Technology, Trondheim, Norway)

Relevant scientific publications:

  1. Vonnahme, T. R., Devetter, M., Žárský, J. D., Šabacká, M., & Elster, J. (2016). Controls on microalgal community structures in cryoconite holes upon high-Arctic glaciers, Svalbard. Biogeosciences, 13(3), 659-674. doi:10.5194/bg-13-659-2016
  2. Zawierucha, K., Ostrowska, M., Vonnahme, T.R., Devetter, A.M., Nawrot, P., Lehmann, S., Kolicka, M. (2016). Diversity and distribution of Tardigrada in Arctic cryoconite holes, Journal of Limnology. doi: 10.4081/jlimnol.2016.1453
  3. Zawierucha, K., Vonnahme, T.R., Devetter, M., Kolicka, M., Ostrowska, M., Chmielewski, S., Kosicki, J.Z. (2016). Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities, Polish Polar Research, 37(2), 325-334. doi: 10.1515/popore-2016-0009l
  4. Vonnahme, T. (2014). Microbial community structure in cryoconite holes in high Arctic glaciers on Svalbard, Bachelor thesis
  5. Vonnahme, T.R. (2016). Microbial diversity and function of deep sea manganese nodule ecosystems, Master thesis

Popular outreach (excl. conferences):

  • Arctic Frontiers 2018, Tromsø, Norway, Pecha Kucha Talk: Modelling climate change in the Arctic
Photo of Paul Wassmann

Paul Wassmann

Professor

Research interests:
  • Arctic marine system ecology
  • Vertical flux and flux regulation
  • Flux of carbon in marine ecosystems as a function of trophic state and climate change
  • Physical-biological coupled 3-D models of pelagic primary production as well as new and export production
  • Dynamics of Phaeocystis-dominated ecosystems.
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UiT The Arctic University of NorwayArctic and Marine Biology Work address Department of Arctic and Marine Biology Faculty of Biosciences, Fisheries and Economics UiT The Arctic University of Norway Tromsø 9037 Norway Work Phone: +47 77 64 44 59

Research interests:

  • Arctic marine system ecology
  • Vertical flux and flux regulation
  • Flux of carbon in marine ecosystems as a function of trophic state and climate change
  • Physical-biological coupled 3-D models of pelagic primary production as well as new and export production
  • Dynamics of Phaeocystis-dominated ecosystems.

Running national and international projects:

  • Statoil ARCTOS LoVe Marine Ecosystem Project
  • Research Centre for Arctic Petroleum Exploration (ARCEx)
  • World leading research group on the productive marginal ice zone
  • Nansen legacy
  • Environmental Waste Management (EWMA)
  • Bridging productivity regimes in the Arctic Ocean (CarbonBridge)

Completed national and international projects.

  • PRO MARE
  • Skadelige alger
  • MARE NOR
  • NAPP
  • ALV
  • MACESIZ
  • CABANERA
  • Integrated Arctic Ocean Observatory System (iAOOS) – Norway: Closing the loop
  • MERCLIM Marine Ecosystem Response to a changing CLIMate
  • Eutrophication and sedimentation in the Gulf of Riga
  • CONFLUX – Vertical flux regulation in the upper twilight zone
  • EU projects: PALOMA, MTP, MATER, ESCAPE, BASIS, BALANCE, OMEX I, OMEX II, BIOHAB, FAMIZ, CYCLOPS, GLIMPS, IASON, EURO-Oceans, CLAMER, Arctic Tipping Points (ATP)

Relevant scientific publications (last five years):

  1. JM Holding, CM Duarte, M Sanz-Martín, E Mesa, JM Arrieta, M Chierici, IE Hendriks, LS García-Corral, A Regaudie-de-Gioux, A Delgado, M Reigstad, P Wassmann, S Agustí (2015) Temperature dependence of CO2-enhanced primary production in the European Arctic Ocean. Nature Climate Change
  2. P Wassmann (2015) Overarching perspectives of contemporary and future ecosystems in the Arctic Ocean. Progress in Oceanography
  3. P Wassmann, KN Kosobokova, D Slagstad, KF Drinkwater, RR Hopcroft, SE Moore, I Ellingsen, RJ Nelson, E Carmack, E Popova, J Berge (2015) The contiguous domains of Arctic Ocean advection: trails of life and death. Progress in Oceanography
  4. Levin, Lisa A.; Liu, Kon-Kee; Emeis, Kay-Christian; Breitburg, Denise L; Cloern, James; Deutsch, Curtis; Giani, Michele; Goffart, Anne; Hofmann, Eileen E.; Lachkar, Zouhair; Limburg, Karin E; Liu, Su-Mei; Montes, Enrique; Naqvi, Wajih; Ragueneau, Olivier; Rabouille, Christophe; Sarkar, Santosh K.; Swaney, Dennis P.; Wassmann, Paul; Wishner, Karen F. Comparative biogeochemistry–ecosystem–human interactions on dynamic continental margins. Journal of Marine Systems 2014; Volum 141. ISSN 0924-7963.s 3 – 17.s doi: 10.1016/j.jmarsys.2014.04.016.
  5. Garcia-Corral, Lara S; Agusti, Susana; Regaudie-de-Gioux, Aurore; Iuculano, Francesca; Carrillo-de-Albornoz, Paloma; Wassmann, Paul; Duarte, Carlos M.. Ultraviolet radiation enhances Arctic net plankton community production. Geophysical Research Letters 2014; Volum 41 (6). ISSN 0094-8276.s 5960 – 5967.s doi: 10.1002/2014GL060553.
  6. Coello-Camba, Alexandra; Agusti, Susana; Vaqué, Dolors; Holding, Johnna; Arrieta, Jesus M.; Wassmann, Paul; Duarte, Carlos M.. Experimental Assessment of Temperature Thresholds for Arctic Phytoplankton Communities. Estuaries and Coasts 2014. ISSN 1559-2723.s doi: 10.1007/s12237-014-9849-7.
  7. Tamelander, Tobias; Reigstad, Marit; Olli, Kalle; Slagstad, Dag; Wassmann, Paul. New production regulates export stoichiometry in the ocean. PLoS ONE 2013; Volum 8 (1). ISSN 1932-6203.s doi: 10.1371/journal.pone.0054027.
  8. Polyakov, Igor V; Bhatt, Uma; Walsh, John E.; Abrahamsen, Einar Povl; Pnyushkov, A.V.; Wassmann, Paul. Recent oceanic changes in the Arctic in the context of long-term observations. (fulltekst) Ecological Applications 2013; Volum 23 (8). ISSN 1051-0761.s 1745 – 1764.s doi: 10.1890/11-0902.1.
  9. Lara, Elena; Arrieta, Jesus M; Garcia-Zarandona, Inigo; Boras, Julia A; Duarte, Carlos M; Agusti, Susana; Wassmann, Paul; Vaque, Dolores. Experimental evaluation of the warming effect on viral, bacterial and protistan communities in two contrasting Arctic systems. Aquatic Microbial Ecology 2013; Volum 70 (1). ISSN 0948-3055.s 17 – 32.s doi: 10.3354/ame01636.
  10. Vaquer-Sunyer, Raquel; Duarte, Carlos M.; Regaudie-de-Gioux, A; Holding, Johnna; García-Corral, LS; Reigstad, Marit; Wassmann, Paul. Seasonal patterns in Arctic planktonic metabolism (Fram Strait – Svalbard region). Biogeosciences 2013; Volum 10. ISSN 1726-4170.s 1451 – 1469.s doi: 10.5194/bg-10-1451-2013.
  11. Holding, Johnna; Duarte, Carlos M.; Arrieta, Jesús M.; Vaquer-Suyner3, Riser; Coello-Camba, Alexandra; Wassmann, Paul; Agusti, Susana. Experimentally determined temperature thresholds for Arctic plankton community metabolism. Biogeosciences 2013; Volum 10 (1). ISSN 1726-4170.s 357 – 370.s doi: 10.5194/bg-10-357-2013.
  12. Wassmann, Paul; Lenton, Timothy. Arctic Tipping Points in an Earth System Perspective. Ambio 2012; Volum 41 (1). ISSN 0044-7447.s 1 – 9.s doi: 10.1007/s13280-011-0230-9.
  13. Duarte, Carlos M.; Agusti, Susana; Wassmann, Paul; Arrieta, Jesus; Alcaraz, Miguel; Coello, A; Marba, Nuria; Hendriks, Iris; Holding, Johnna; García-Zarandona, Inigo; Kritzberg, Emma; Vaqué, Dolors. Tipping Elements in the Arctic Marine Ecosystem. Ambio 2012; Volum 41 (1). ISSN 0044-7447.s 44 – 55.s doi: 10.1007/s13280-011-0224-7.
  14. Wassmann, Paul; Duarte, Carlos M.; Lenton, Timothy; Wadhams, Peter. Abrupt climate change in the Arctic. Nature Climate Change 2012; Volum 2. ISSN 1758-678X.s 60 – 62.s doi: 10.1038/nclimate1386.
  15. Slagstad, Dag; Ellingsen, Ingrid H.; Wassmann, Paul Friedrich. Evaluating primary and secondary production in an Arctic Ocean void of summer sea ice: An experimental simulation approach. Progress in Oceanography 2011; Volum 90 (1-4). ISSN 0079-6611.s 117 – 131.s doi: 10.1016/j.pocean.2011.02.009.
  16. Wassmann, Paul. Arctic marine ecosystems in an era of rapid climate change. Progress in Oceanography 2011; Volum 90 (1-4). ISSN 0079-6611.s 1 – 17.s doi: 10.1016/j.pocean.2011.02.002.
  17. Ellingsen, Ingrid H.; Slagstad, Dag; Broch, O.J.; Wassmann, Paul; Bellerby, Richard. Climate change effects on marine Arctic ecosytems. META 2011; Volum 4. ISSN 1890-2987.s 6 – 9.
  18. Wassmann, Paul; Reigstad, Marit. Future Arctic Ocean Seasonal Ice Zones and Implications for Pelagic-Benthic Coupling. Oceanography 2011; Volum 24 (3). ISSN 1042-8275.s 220 – 231.
  19. Wassmann, Paul Friedrich; Duarte, Carlos; Agusti, Susana; Sejr, Mikael K. Footprints of climate change in the Arctic marine ecosystem. Global Change Biology 2011; Volum 17 (2). ISSN 1354-1013.s 1235 – 1249.s doi: 10.1111/j.1365-2486.2010.02311.x.
  20. Reigstad, Marit; Carroll, Jolynn; Slagstad, Dag; Ellingsen, Ingrid H.; Wassmann, Paul. Intra-regional comparison of productivity, carbon flux and ecosystem composition within the northern Barents Sea. Progress in Oceanography 2011; Volum 90 (1-4). ISSN 0079-6611.s 33 – 46.s doi: 10.1016/j.pocean.2011.02.005.
  21. Wassmann, Paul Friedrich; Slagstad, Dag; Ellingsen, Ingrid H.. Primary production and climatic variability in the European sector of the Arctic Ocean prior to 2007: preliminary results. Polar Biology 2010; Volum 33 (12). ISSN 0722-4060.s 1641 – 1650.s doi: 10.1007/s00300-010-0839-3.
  22. Wexels Riser, Christian; Reigstad, Marit; Wassmann, Paul. Zooplankton-mediated carbon export: A seasonal study in a northern Norwegian fjord. Marine Biology Research 2010; Volum 6 (5). ISSN 1745-1000.s 461 – 471.s doi: 10.1080/17451000903437067.
  23. Vaquer-Sunyer, Raquel; Duarte, Carlos; Santiago, Rocío; Wassmann, Paul Friedrich; Reigstad, Marit. Experimental evaluation of planktonic respiration response to warming in the European Arctic Sector. Polar Biology 2010; Volum 33 (12). ISSN 0722-4060.s 1661 – 1671.s doi: 10.1007/s00300-010-0788-x.
  24. Kritzberg, Emma; Duarte, Carlos; Wassmann, Paul Friedrich. Changes in Arctic marine bacterial carbon metabolism in response to increasing temperature. Polar Biology 2010; Volum 33 (12). ISSN 0722-4060.s 1673 – 1682.s doi: 10.1007/s00300-010-0799-7.
  25. Forest, Alexandre; Wassmann, Paul Friedrich; Slagstad, Dag; Bauerfeind, Eduard; Nöthig, Eva-Maria; Klages, Michael. Relationships between primary production and vertical particle export at the Atlantic-Arctic boundary (Fram Strait, HAUSGARTEN). Polar Biology 2010; Volum 33 (12). ISSN 0722-4060.s 1733 – 1746.s doi: 10.1007/s00300-010-0855-3.

Popular science and outreach:

  1. Book: Arctic Tipping Points
  2. Book: Svalbard Life
  3. Book: Drainage basin nutrient inputs and eutrophication: an integrated approach
  4. Wassmann, P. (1981). Livet i Solar Lake, et lite soloppvarmet vann på Sinai-halvøya. Naturen 4-5: 147-151.
  5. Wassmann, P. (1982 a). Korallrev: Form og dannelse. Naturen 2: 55-60.
  6. Wassmann, P. (1982 b). Oaser i dyphavet: De siste årtiers største marinbiologiske oppdagelse? Naturen 5-6: 174-180.
  7. Wassmann, P. (1983). Poller: Særegne områder langs den Norske kyst. Naturen 5-6: 197-206.
  8. Wassmann, P. (1986 a). Organisk materiale i det marine miljø: Kilder. Naturen 1:8-15.
  9. Wassmann, P. (1986 b). Organisk materiale i det marine miljø: Sedimentering. Naturen 3: 108-112.
  10. Wassmann, P. (1986 c). Organisk materiale i det marine miljø. Stoffskifteprosesser og nedbrytning. Naturen 4: 148-155.
  11. Wassmann, P. & E. Sakshaug (1987). Barentshavets økologiske grunntrekk. Naturen 4:151-158
  12. Wassmann, P. (1988). Havets betydning for den globale karbonsysklus. Naturen 4: 133-138
  13. Wassmann, P. (1989). Bermudas hårfine økologiske balanse. Naturen 3:135-148
  14. Wassmann, P. (1990). Kultivering eller ødeleggelse av det marine miljø? Konsekvenser av økt tilførsel av næringssalter. Comments to a contriubtion of H. Gjøsaether. Norsk Fiskerikandidat Forening Årbok 1990.
  15. Wassmann, P. (1991). Klimaforandringer og vertikal fluks i havet. Kjemi; Spesialutgave “Global oppvarming og drivhuseffekt”: 39-40.
  16. Wassmann, P., Elverhøy, A. (1992). Sedimentering og nedbrytning av biogent matriale. In: Sakshaug et al. (eds.) Økosystem Barentshavet. 161-168.
  17. Wassmann, P., Andrushatis, A. (1993). Overgjødsling i Østersjøen og Rigabukten. Naturen 5: 205-213.
  18. Keck, A., Wassmann, P. (1993). Den sibiriske kontinentalsokkel og Polhavet. I. Klima, elver, is og fysisk oseanografi. Naturen 5: 227-234
  19. Keck, A., Wassmann, P. (1993). Den sibirske kontinentalsokkel og Polhavet. II. Betydning for den globale karbonkretsløp? Naturen 6: 264-272.
  20. Wassmann, P. (1994). Utslipp av biogene gasser gjennom havoverflaten. Naturen 5: 216-221.
  21. Wassmann, P., Merino. M. (1994). Det perfekte feriested: Fra høytflyvende drømmer til nedslående virklighet. Den karibiske perlen Cancún, Mexico. Naturen 3:105-111.
  22. Svendsen, H. & Wassmann, P. (1998). Strømmer og plankton i fjordene. In: Kystøkologi, den resursrike norskekysten. Universitetsforlaget, Oslo, pp. 79-101.
  23. Wassmann, P. & D. Slagstad (1998). Klimatisk påvirkning av produktivitet i Barentshavet: anvendelse av numerisk modellering. Naturen 1: 31-46.
  24. Wassmann, P. (1998). Oppstrømning og produktivitet langs den Atlantiske delen av den Iberiske halvøy. Naturen 5: 249-256.
  25. Stålnakcke, P. & P. Wassmann (2000). Rigabukten – renere enn vi trott. Forskning och Framsteg, 6: 34-39.
  26. Wassmann, P. & P. Stålnacke (2000). Forskning på främmande vilkor. Forskning och Framsteg. 6: 38-39.
  27. Stålnacke, P., Wassmann, P., Janssons, V. & Andrushaitis, A, (2000). The Gulf of Riga – cleaner than expected. WWF Baltic Bulletin 2/2000: 21-23.

 

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Ingrid Wiedmann

Post-doctoral researcher

Research interests: My present research activities focus on the vertical flux of organic biomass and sinking particles (> 50 μm) in high latitude regions (Barents Sea; Adventfjorden, Svalbard) and potential drivers of major sedimentation events such a turbulence, upward nitrate flux, phytoplankton and zooplankton composition, or glacial run-off.…Read More
UiT The Arctic University of NorwayArctic and Marine Biology Work address Department of Arctic and Marine Biology Faculty of Biosciences, Fisheries and Economics UiT The Arctic University of Norway Tromsø 9037 Norway Work Phone: +47 77 64 42 14 Website: ARCEx – Research Centre for Arctic Petroleum Exploration

Research interests:

My present research activities focus on the vertical flux of organic biomass and sinking particles (> 50 μm) in high latitude regions (Barents Sea; Adventfjorden, Svalbard) and potential drivers of major sedimentation events such a turbulence, upward nitrate flux, phytoplankton and zooplankton composition, or glacial run-off. This meets my research interests of field-based research with a major focus on physical-biological interactions.

Running national and international projects:

  • ARCEx – Research Centre for Arctic Petroleum Exploration
  • CarbonBridge – Bridging marine productivity regimes: How Atlantic advective inflow affects productivity, carbon cycling and export in a melting Arctic Ocean

Completed national and international projects:

  • CONFLUX – Fate of organic material in the ocean: Controlling mechanisms in vertical flux regulation

Relevant scientific publications:

  1. Wiedmann, I., Reigstad, M., Marquardt, M., Vader, A., Gabrielsen, T.M. Seasonality of vertical flux and sinking particle characteristics in an ice-free Arctic fjord – different from subarctic fjords? Journal of Marine Systems, accepted for publication.
  2. Wiedmann, I., Reigstad, M., Sundfjord, A., Basedow, S. Potential drivers of sinking particles’ size spectra and vertical flux of particulate organic carbon (POC): Turbulence, phytoplankton and zooplankton. Journal of Geophysical Research: Oceans, 119 (10), 6900-6917.

 

Photo of Anette Wold

Anette Wold

Chief engineer

Research interests:
  • Plankton ecology with a main emphasis on phytoplankton and zooplankton
  • The impact of changing sea ice conditions and associated effects on phytoplankton and ice algal communities
  • Ecosystem structure and energy flow of Arctic marine food webs including fatty acid throphic markers and stable isotope studies.
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Norwegian Polar InstituteResearch department: ecotoxicology Work address Norwegian Polar Institute Fram Centre Tromsø 9296 Norway Work Phone: +47 77 75 05 46

Research interests:

  • Plankton ecology with a main emphasis on phytoplankton and zooplankton
  • The impact of changing sea ice conditions and associated effects on phytoplankton and ice algal communities
  • Ecosystem structure and energy flow of Arctic marine food webs including fatty acid throphic markers and stable isotope studies.

Running national and international projects:

  • The Nansen Legacy (2018-2022)
  • Arctic Ecosystem Monoitoring: Pelagic study in Kongsfjorden (2010->)
  • MOSJ: Pelagic study in Kongsfjorden (2009->)

Completed national and international projects:

  • N-ICE2015: Ecosystem dynamics in a high-Arctic pack ice environment (5 Jan 2015–30 Jun 2015)
  • CLEOPATRA II: Climate effects on planktonic food quality and trophic transfer in the Arctic marginal ice zone (1 Jul 2012–30 Jul 2015)

Relevant scientific publications:

  1. Hop H, Wold A, Vihtakari M, Daase M, Kwasniewski S, Gluchowska M, Lischka S, Buchholz F, Falk-Petersen S (accepted) Zooplankton in Kongsfjorden (1996-2016) in relation to climate change. Advances in Polar Ecology
  2. Darnis G, Wold A, Falk-Petersen S, Graeve M, Fortier L (2018) Could offspring predation offset the successful reproduction of the arctic copepod Calanus hyperboreus under reduced sea-ice cover conditions? Progress in Oceanography 170: 107:118. https://doi.org/10.1016/j.pocean.2018.11.004
  3. Fernández-Méndez M, Olsen LM, Kauko HM, Meyer A, Rösel A, Merkouriadi I, Mundy CJ, Ehn JK, Johansson MA, Wagner PM, Ervik Å, Sorrell BK, Duarte PM, Wold A, Hop H, Assmy P (2018) Algal hot spots in a changing Arctic Ocean: Sea-ice ridges and the snow-ice interface. Frontiers in Marine Science
  4. Brown TA, Assmy P, Hop H, Wold A, Belt S (2017) Transfer of ice algae carbon to ice associated amphipods in the high-Arctic pack ice environment. J. Plankton Res. 00(00): 1–11. doi:10.1093/plankt/fbx030
  5. Haug T, Falk-Petersen S, Greenacre M, Hop H, Lindstrøm U, Meier S, Nilssen KT, Wold A (2017). Trophic level and fatty acids in harp seals compares with common minke whales in the Barents Sea. Marin. Biol. Res. doi.org/10.1080/17451000.2017.1313988
  6. Darnis G, Hobbs L, Geoffroy M, Grenvald JC, Renaud PE, Berge J, Cottier F, Kristiansen S, Daase M, Søreide J, Wold A, Morata N, Gabrielsen T (2017). From polar night to midnight sun: Diel vertical migration, metabolism and biogeochemical role of zooplankton in a high Arctic fjord (Kongsfjorden, Svalbard). Limnol. Oceanogr., doi: 10.1002/lno.10519.
  7. Assmy P, Fernández-Méndez M, Duarte P, Meyer A, Randelhoff A, Mundy CJ, Olsen LM, Kauko HM, Bailey A, Chierici M, Cohen L, Doulgeris AP, Ehn JK, Fransson A, Gerland S, Hop H, Hudson SR, Hughes N, Itkin P, Johnsen G, King JA, Koch BP, Koenig Z, Kwasniewski S, Laney SR, Nicolaus M, Pavlov AK, Polashenski CM, Provost C, Rösel A, Sandbu M, Spreen G, Smedsrud LH, Sundfjord A, Taskjelle T, Tatarek A, Wiktor J, Wagner PM, Wold A, Steen H, Granskog MA (2017). Leads in Arctic pack ice enable early phytoplankton blooms below snow-covered sea ice. Scientific Reports 7:40850 DOI:10.1038/srep40850
  8. Fransson A, Chierici M, Hop H, Findlay HS, Kristiansen S, Wold A (2016) Late winter-to-summer change in ocean acidification state in Kongsfjorden, with implications for calcifying organisms. Polar Biology 39:1841:1857. DOI 10.1007/s00300-016-1955-5
  9. Dalpadado P, Hop H, Rønning J, Pavlov V, Sperfeld E, Buchholz F, Rey A, Wold A (2015) Distribution and abundance of euphausiids and pelagic amphipods in Kongsfjorden, Isfjorden and Rijpfjorden (Svalbard) and changes in their relative importance as key prey in a warming marine ecosystem. Polar Biol. DOI 10.1007/s00300-015-1874-x
  10. Mayzaud, P., Falk-Petersen, S., Noyon, M., Wold, A., Boutoute, M. 2015. Lipid composition of three co-existing Calanus species in the Arctic: impact of season, location and environment. Polar Biology, DOI:10.1007/s00300-015-1725-9
  11. Zarubin, M., Genin, A., Falk-Petersen, S., Wold, A., Farstey, V. 2014. Intraspecific differences in lipid content of Calanoid copepods across fine-scale depth ranges within the photic layer. Plos One 9(3). DOI:10.1371/journal.pone.0092935
  12. Blachowiak-Samolyk, K., Anna-Maria, K., Falk-Petersen, S., Wold, A., Hegseth, E.N., Wiktor, J. 2014. Winter Tales: The dark side of planktonic life. Polar Biology 38(1):23-36. DOI:10.1007/s00300-014-1597-4
  13. Daase, M., Falk-Petersen, S., Varpe, Ø., Darnis, G., Søreide, J.E., Wold, A., Leu, E., Berge, J., Philippe, B., Fortier, L. 2013. Timing of reproductive events in the marine copepod Calanus glacialis: a pan-Arctic perspective. Canadian Journal of Fisheries and Aquatic Sciences 70(6): 871–884. DOI:10.1139/cjfas-2012-0401
  14. Berge, J., Varpe, Ø., Moline, M.A., Wold, A., Renaud, P.E., Daase, M., Falk-Petersen, S. 2012. Retention of ice-associated amphipods: possible consequences for an ice-free Arctic Ocean. Biology Letters 8(6): 1012–1015.
    DOI:10.1098/rsbl.2012.0517
  15. Wold, A., Darnis, G., Soreide, J.E., Leu, E., Philippe, B., Fortier, L., Poulin, M., Kattner, G., Graeve, M., Falk-Petersen, S. 2011. Life strategy and diet of Calanus glacialis during the winter-spring transition in Amundsen Gulf, south-eastern Beaufort Sea. Polar Biology 34(12): 1929–1946. DOI:10.1007/s00300-011-1062-6
  16. Rabindranath, A., Daase, M., Falk-Petersen, S., Wold, A., Wallace, M.I., Berge, J., Brierley, A.S. 2011. Seasonal and diel vertical migration of zooplankton in the High Arctic during autumn midnight sun of 2008. Marine Biodiversity 41(3): 365–382. DOI:10.1007/s12526-010-0067-7
  17. Wold, A., Jæger, I., Hop, H., Gabrielsen, G.W., Falk-Petersen, S. 2011. Arctic seabird food chains explored by fatty acid composition and stable isotopes in Kongsfjorden, Svalbard. Polar Biology 34(8): 1147–1155.
    DOI:10.1007/s00300-011-0975-4
  18. Falk-Petersen, S., Leu, E., Berge, J., Kwasniewski, S., Nygard, H., Rostad, A., Keskinen, E., Thormar, J., Quillfeldt, C.H.v., Wold, A., Gulliksen, B. 2008. Vertical migration in high Arctic waters during autumn 2004. Deep Sea Research Part II: Topical Studies in Oceanography 55(20-21): 2275–2284.
    DOI:10.1016/j.dsr2.2008.05.010
  19. Falk-Petersen, S., Haug, T., Hop, H., Nilssen, K.T., Wold, A. 2008. Transfer of lipids from plankton to blubber of harp and hooded seals off East Greenland. Deep Sea Research Part II: Topical Studies in Oceanography 56(21-22): 2080–2086.
    DOI:10.1016/j.dsr2.2008.11.020
  20. Wold, A., Leu, E., Walkusz, W., Falk-Petersen, S. 2007. Lipids in copepodite stages of Calanus glacialis. Polar Biology 30(5): 655–658.
    DOI:10.1007/s00300-006-0233-3
  21. Cottier, F.R., Tarling, G.A., Wold, A., Falk-Petersen, S. 2006. Unsynchronized and synchronized vertical migration of zooplankton in a high arctic fjord. Limnology and Oceanography 51(6): 2586–2599.
  22. Willis, K., Cottier, F., Kwasniewski, S., Wold, A., Falk-Petersen, S. 2006. The influence of advection on zooplankton community composition in an Arctic fjord (Kongsfjorden, Svalbard). Journal of Marine Systems 61(1-2): 39–54.
    DOI:10.1016/j.jmarsys.2005.11.013
  23. Falk-Petersen, S., Haug, T., Nilssen, K.T., Wold, A., Dahl, T.M. 2004. Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea. Polar Research 23(1): 43–50. DOI:10.1111/j.1751-8369.2004.tb00128.x
  24. Wold, A., Norrbin, F. 2004. Vertical migration as a response to UVR stress in Calanus finmarchicus females and nauplii. Polar Research 23(1): 27–34.
    DOI:10.1111/j.1751-8369.2004.tb00126.x

 

Photo of Magdalena Wutkowska

Magdalena Wutkowska

PhD candidate

PhD project title: Arctic microbial diversity and functional importance in space and time.…Read More
UNIS – The University Centre in Svalbard Work address Department for Arctic Biology UNIS – The University Centre in Svalbard PO box 156 Longyearbyen 9171 Norway

PhD project title:

Arctic microbial diversity and functional importance in space and time.

PhD project description:

Exploring seasonal changes in functionality of microbial eukaryotes through comparative metatranscriptomics. Last years brought in a lot of understanding of marine microbial communities in High-Arctic marine habitats in Svalbard. The aim of this project is to build up additional layer of understanding by exploring functionality of microbial communities in a perspective of seasonal changes. To focus on the function of whole communities and its correlation with environmental parameters both meta-transcriptomics and comparative meta-transcriptomics approach will be implemented. This could reveal new insights into the biogeochemical significance of 0.45-10 um sized components of marine microbial eukaryotes. Previous analyses have already answered the questions of  ‘who is there?’ and ‘who is active?’, and in the current project it would be possible to assess what physiological processes occur at certain time points and who is responsible for this contribution. This project would involve development of a bioinformatics pipeline for the purpose of analyzing metatranscriptomics data sets. Specific questions to be answered are:

– How does the function of 0.45-10 um fraction of marine microbial communities assemblages change throughout a year?
– What are the main functions of 0.45-10 um fraction of marine microbial communities?
– Are there any correlations between physiological pathways and environmental factors?
– What is the biogeochemical importance and significance of picoeukaryotes in High Arctic waters

Start date: 11.01.2016
Planned submission date: 10.01.2020

Supervisors:

Pernille B. Eidesen
Tove M. Gabrielsen
Dorothee Ehrich