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.
Karley Campbell
Associate Professor
- sea ice
- algae
- bacteria
- production
- phycology
- climate change. …
Research interests:
- sea ice
- algae
- bacteria
- production
- phycology
- climate change.
Life in the oceans is supported by an abundance of microscopic algae and bacteria that synthesize organic compounds and recycle them within the lower trophic levels, respectively. The activity of these microorganisms also influences the movement of carbon dioxide (CO2) between oceans and the atmosphere [1], which is an important function given the rising CO2 emissions that are currently driving a warming trend of the global climate [2]. In particular, the polar regions are warming faster than anywhere else on Earth, and the resulting impact on cryosphere systems is substantial [3; 4]. Changes in sea ice volume, seasonality and coverage in the Arctic Ocean are particularly concerning for specialized algae and bacteria that inhabit sea ice [5; 6]. The uncertain response of these vulnerable sea ice algae and bacteria to environmental change has been the focus of my research. This has involved method development to quantify abundance and productivity, field-based process studies to assess biological-physical coupling, and stressor experiments on ice algae cultures to target species-specific responses. I am also interested in the composition of microbial communities and how this varies with growth conditions characteristic of different ice habitats. This involves taxonomic identification of sea ice algae, as well as collaborations (eg Sanchez-Baracaldo laboratory Bristol, UK) to complete metagenomic analyses.
References: [1] Falkowski et al. 1998, Science, 200-206; [2] Graverson et al., 2008, Nature Lett. 53-57; [3] Hansen et al., 2010, Reviews Geophys. RG4004; [4] Screen and Simmonds, 2010, Nature Lett. 1334-1337; [5] Vihma et al., 2014, Surv. Geophys. 1175-1214; [6] Leu et al., 2015, Prog. Oceanogr. 151-170.
Ongoing projects:
- Diatom-ARCTIC: Diatom Autoecological Responses to Changes in Ice Cover, University of Bristol, UK, Co-Investigator
- SIMEP: Southampton Island Marine Ecosystem Project, University of Manitoba, Canada, Collaborator
- Multidisciplinary Arctic Program, Department of Fisheries and Oceans Canada, Collaborator
Lionel Camus
Senior Scientist
- Biomarkers
- Polar and deep marine ecosystems
- Biological effects of oil and gas industries
- Developing and implementing digital technologies in marine sciences. …
Research interests:
- Biomarkers
- Polar and deep marine ecosystems
- Biological effects of oil and gas industries
- Developing and implementing digital technologies in marine sciences.
Pernilla Carlsson
Scientist
Research interests:
I am an environmental/analytical chemist with a background in marine chemistry as well. My main areas of research interest are bioaccumulation of environmental pollutants in Arctic marine and limnic food webs. Another area of interest is how climate change affects environmental processes that are important for understanding the fate and occurrence of contaminants in the Arctic. I have used enantiomer selective analyses to understand more about transfer and fate of pesticides in Arctic waters.
I am involved in assessments and reports for Arctic Monitoring Assessment Programme (AMAP) as well, focusing on emerging contaminants and combined effects of climate change and persistent organic pollutants (POPs).
Scientific diving is a tool I use as much as possible in my research. Certain experiments and sampling cannot be achieved without diving. Other techniques for sampling organic pollutants are passive sampling (water) that is a very useful way of taking samples in the Arctic.
Running projects:
FlammePlank, Svalbard environmental fund project on occurrence of new flame retardants in Svalbard.
Scientific publications:
- Carlsson, P., Pawlak, J., Wilson, S., Christensen, J.H., Borgå, K., Aspmo Pfaffhuber, K., Odland, J.Ø., Kallenborn, R., Reiersen, L-O. Influence of Climate Change on Transport, Levels, and Effects of Contaminants in Northern Areas. Nordic Council of Ministers (NCM) and AMAP. –planned 2016
- Carlsson, P., Crosse, J.D., Halsall, C., Evenset, A., Heimstad, E.S., Harju, M., 2016a. Perfluoroalkylated substances (PFASs) and legacy persistent organic pollutants (POPs) in halibut and shrimp from coastal areas in the far north of Norway: Small survey of important dietary foodstuffs for coastal communities. Marine Pollution Bulletin.
- Carlsson, P., Literák, J., Dušek, L., Hofman, J., Bucheli, T.D., Klánová, J., 2016b. Temporal and spatial variability of enantiomeric fractions (EFs) of chiral organochlorines in relation to soil properties. J. Soils Sediments, 1-9.
- Carlsson, P., Warner, N.A., Hallanger, I.G., Herzke, D., Kallenborn, R., 2014. Spatial and temporal distribution of chiral pesticides in Calanus spp. from three Arctic fjords. Environ Pollut 192, 154-161.
- Carlsson, P., Herzke, D., Kallenborn, R., 2014. Polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and perfluorinated alkylated substances (PFASs) in traditional sea-food items from western Greenland. Environmental Science and Pollution Research 21, 4741-4750.
- Carlsson, P., Herzke, D., Kallenborn, R., 2014. Enantiomer-Selective and Quantitative Trace Analysis of Selected Persistent Organic Pollutants (POP) in Traditional Food from Western Greenland. Journal of Toxicology and Environmental Health, Part A 77, 616-627.
- Kallenborn, K., Halsall, C., Dellong, M., Carlsson, P. 2012. The influence of climate change on the global distribution and fate processes of anthropogenic persistent organic pollutants. Journal of Environmental Monitoring 14, 2854-2869.
- Carlsson, P., Cornelissen, G., Bøghild, C.E., Rysgaard, S., Mortensen, J. Kallenborn, R. 2012. Hydrology-linked spatial distribution of pesticides in a fjordsystem in Greenland. Journal of Environmental Monitoring 14 (5), 1437-1443.
Popular science and outreach:
- Fram-dagen Nov 2015; dykking for vitenskap
- Invited key note speaker at Arctic Frontiers, Tromsø, Norway 2014
- Invited for presentation at “Svalbardseminarene”, Longyearbyen, Svalbard, February 2014
- Qualification in local final of “Forsker Grand Prix”, Tromsø to participation in the nationalfinal in Oslo, September 2013
- Project leader for the Svalbard environmental fund project “POPjakt i skolen”, 2010-2012. An outreach project together with the school in Longyearbyen.
Cheshtaa Chitkara
PhD candidate
PhD project title:
Diversity and functions of Arctic marine microbial eukaryotes in a climate change perspective.
PhD project description:
To study the diversity and gene expressions of certain genes of protists around Svalbard and at the IsA time series station in Isfjorden, by estimating the change in their diversity with respect to changing environmental conditions.
Start date: Aug 1, 2019
Planned submission date: Aug 1, 2023
Supervisors:
Anna Vader (UNIS, Longyearbyen, Svalbard)
Tove M Gabrielsen (UiA, Kristiansand, Norway)
Scientific publications:
- Sen A., Himmler T., Hong W.L., Chitkara C., Lee R.W., Ferré B., Lepland A., Knies J. (2019) Atypical biological features of a new cold seep site on the Lofoten-Vesterålen continental margin (northern Norway). Scientific reports 9, article number 1762 (2019).
- Sen A., Chitkara C., Hong W.-L., Lepland A., Cochrane S., di Primio R., Brunstad H. (2019) Image based quantitative comparisons indicate heightened megabenthos diversity and abundance at a site of weak hydorcarbon seepage in the southwestern Barents Sea. PeerJ 7:e7398
Sabine Cochrane
Senior Scientist
- Taxonomy
- Marine ecology
- Biodiversity
- Polychaetes
Research interests:
- Taxonomy
- Marine ecology
- Biodiversity
- Polychaetes
Estelle Coguiec
PhD candidate
PhD project title:
Seasonality and activity of Arctic zooplankton.
PhD project description:
My PhD will consist in identifying seasonal and diel zooplankton behaviour in Arctic and sub-Arctic waters. The first chapter of my PhD will be about the seasonal light response of Calanus finmarchicus in a high latitude fjord. This response is studied by recording individual behaviour of C. finmarchicus in the laboratory under natural light cycle every month. In parallel, I use acoustic methods to determine the migration behaviour of zooplankton. The second chapter is a long time series of acoustic data from Rijpfjord, Svalbard. The aim is to know how zooplankton’s vertical migration change seasonally and through the year in a known environment. To be able to predict those behaviour under climate change. The third chapter as for purpose to use acoustic data from autonomous drifting observatories, to have a pan arctic image of zooplankton behaviour.
Start date: Nov 2018
Submission date: Oct 2022
Supervisors:
Jørgen Berge (UiT, Tromsø, Norway)
Malin Daase (UiT, Tromsø, Norway)
Laura Hobbs (University of Strathclyde, Glasgow, UK)
Helena Sofia Gomes Costa
PhD candidate
PhD project title:
The effects of pollutants and infectious disease on the health of the humpback whale.
PhD project description:
For my PhD I will be investigating which pathogens and pollutants the humpbacks whales of the Eastern North Atlantic population are exposed to, and studying the effects of this exposure on their health.
Start date: June 2021
Planned submission date: June 2024
Supervisors:
Courtney A. Waugh (Nord University, Steinskjer, Norway)
Jorge Fernandes (Nord University, Bodø, Norway)
Susan Bengston Nash (Griffith University, Australia)
Scientific publications:
- Costa H, Klein J, Breines EM, Nollens HH, Matassa K, Garron M, Duignan PJ, Schmitt T, Goldstein T and Tryland M (2021) A Comparison of Parapoxviruses in North American Pinnipeds. Front. Vet. Sci. 8:653094. doi: 10.3389/fvets.2021.653094