Arctic under multiple stressors - Combined effects of ocean acidification, temperature and light on Arctic phytoplankton assemblages (AMUST)

The aim of our research is to measure, understand and predict phytoplankton responses to multiple stressors, e.g. Ocean Acidification, warming and chnages in light availability, by focusing on the Arctic Ocean as one of the most sensitive areas on Earth.

Great to see you here!

Did you know that there are {{related}} projects registered now with keywords matching your project, and {{close}} projects with fieldwork within 10km of your fieldwork site?

check them out here!

Thank you for adding your research project to the growing pool of knowledge about the research going on in Svalbard and its surrounding waters!

As we would like you to know a bit about what is going on in Svalbard in your discipline and fieldwork surroundings, we have selected some projects that should be interesting for you to have a look at. There are {{related}} projects registered in RiS that match with your keywords, and below you will find links to the 3 that have the most relevant match.

As we all work to reduce our environmental footprint, we want to give you an easy way to find projects that have fieldwork close to you, so you can contact the project owner and coordinate your logistics whenever possible. This could also help you save some expensive costs ;) There are {{close}} projects registered in RiS that have registered their fieldwork sites within 10 km from you, and below you will find links to the 3 closest fieldwork locations.


Related Projects


Close projects

Your fieldworks Fieldworks close to yours
RiS map service is temporarily down
× <

Project date



Project status

{{statustext}} When your project description has been processed and your project added to RiS, the booking and application functions will be available. Remember that you need to register fieldwork periods to access these functions.

Project type

  • field work


  • marine biology
  • oceanography

Project Keywords

  • biosphere / ecological dynamics / ecosystem functions
  • biosphere / aquatic ecosystems / plankton
  • oceans / marine biology / marine microbiota
  • oceans / ocean chemistry / carbon dioxide

Fieldwork information

Click on map point to view details for the point.

RiS map service is temporarily down
Points close to each other:
{{point.posId}}. {{point.startDate}} – {{point.endDate}}: {{point.location}}

Type Period From To Coordinates Station Location
{{fieldwork.type}} {{fieldwork.mapType}} {{fieldwork.period}} {{fieldwork.startDate}} {{fieldwork.endDate}} E{{fieldwork.utm33East}}, N{{fieldwork.utm33North}}
{{ | number : 6}}°N, {{fieldwork.long | number : 6}}°E
{{fieldwork.baseStation}} {{fieldwork.location}}


Due to the fundamental role of phytoplankton in global elemental cycles, climate change research has begun to study these organisms in the context of ocean acidification (OA), increased temperatures and changes in the surface ocean light regime. Until now, these stressors have mostly been assessed in isolation and only limited process-understanding was gained. For regions most prone to the predicted changes, including the Arctic Ocean, knowledge about the effects of multiple stressors is lacking. The well studied spring bloom dynamics in the Kongsfjorden provide an ideal setting to investigate the single and combined effects of OA, temperature and light in incubation experiments with natural phytoplankton communities. Our work will examine how these variables interact to affect phytoplankton productivity and ecological dynamics. We propose to conduct in situ measurements and incubation experiments aimed at examining the response of phytoplankton assemblages from Kongsfjorden to a range of pCO2, temperatures and light regimes. In situ sampling will be used to characterize natural gradients in pCO2, light and temperature and to quantify phytoplankton biomass (Chl a) and productivity (O2 production, 14C uptake). Incubation experiments will be used to expose phytoplankton to different matrices of different CO2, temperature, and light levels. By varying these parameters independently, the combined as well as individual effects can be investigated. After incubating and monitoring the assemblages over several weeks, differences in phytoplankton biomass and species abundance, primary productivity, elemental composition and photophysiology will be determined.

Project members

Participating institutions

Project updates

No updates yet


No publications yet






No dataset yet