Susa

Niiranen

PhD

Postdoctoral researcher

susa.niiranen@su.se

+46 8 674 75 63

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Staff profile

Susa Niiranen’s research focuses on change in marine ecosystems that is driven by multiple environmental and anthropogenic stressors

Profile summary

  • Marine ecosystems
  • Food web dynamics
  • Ecological modelling
  • Multiple drivers
  • Environmental change
  • Baltic Sea
  • Arctic marine systems

Niiranen looks at marine food web dynamics and how they respond to changes in multiple environmental and anthropogenic stressors. She uses modelling as her research tool and is currently working with a size-structured food web modelling approach in a Baltic Sea Bonus project BlueWebs. Her recent research also includes study of cross-scale dynamics in Arctic marine systems. Niiranen is a co-lead of the Marine Theme at the Stockholm Resilience Centre.

Niiranen has a PhD in marine ecology from the Department of Ecology, Environment and Plant Sciences (DEEP) at the Stockholm University. For her PhD research she studied how multiple interacting drivers affect the dynamics of Baltic Sea food web. She holds an MSc in hydrobiology from the University of Helsinki and worked at the former Finnish Institute of Marine Research and the Baltic Nest Institute before her becoming a post-doctoral researcher at the SRC. While at SRC, she has worked in projects GreenMAR, INSPIRE, and BlueWebs.

Niiranen participates actively in the work of the International Council of the Exploration of the Seas (ICES) expert groups such as the Working Group on the integrated assessment of the Baltic Sea (WGIAB) and Working Group on Comparative Analysis between European Atlantic and Mediterranean marine ecosystems (COMEDA).

Supervision:
Yosr Ammar, PhD candidate

Staff details

ORCID: 0000-0001-8405-8717

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Niiranen, Susa

Publications by Niiranen, Susa

Predator-prey body size relationships of cod in a low-diversity marine system

Niiranen S., Orio A., Bartolino V., Bergström U., et.al.

2019 - Journal / article

How predators select their prey largely defines ecosystem trophic structure, function and dynamics. In aquatic systems, organism body size is an important trait explaining predator-prey interactions. Here, we used a unique Atlantic cod Gadus morhua stomach content dataset with diet information from over 100000 individuals collected from the Baltic Sea in 1963-2014, to explore prey size distribution and predator-prey mass ra...

Linking demographic and food‐web models to understand management trade‐offs

Kadin, M., Frederiksen, M., Niiranen, S., Converse, S.J.

2019 - Journal / article

Alternatives in ecosystem‐based management often differ with respect to trade‐offs between ecosystem values. Ecosystem or food‐web models and demographic models are typically employed to evaluate alternatives, but the approaches are rarely integrated to uncover conflicts between values. We applied multistate models to a capture–recapture dataset on common guillemots Uria aalge breeding in the Baltic Sea to identify factors in...

Global ensemble projections reveal trophic amplification of ocean biomass declines with climate change

Lotze, H.K., Tittensor, D.P., Bryndum-Buchholz, A., Eddy, T.D. et. al.

2019 - Journal / article

While the physical dimensions of climate change are now routinely assessed through multimodel intercomparisons, projected impacts on the global ocean ecosystem generally rely on individual models with a specific set of assumptions. To address these single-model limitations, we present standardized ensemble projections from six global marine ecosystem models forced with two Earth system models and four emission scenarios with a...

A participatory scenario method to explore the future of marine social‐ecological systems

Planque B., Mullon C., Arneberg P., et.al.

2019 - Journal / article

Anticipating future changes in marine social‐ecological systems (MSES) several decades into the future is essential in the context of accelerating global change. This is challenging in situations where actors do not share common understandings, practices, or visions about the future. We introduce a dedicated scenario method for the development of MSES scenarios in a participatory context. The objective is to allow different ac...

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Niiranen, Susa

Stockholm Resilience Centre is a collaboration between Stockholm University and the Beijer Institute of Ecological Economics at the Royal Swedish Academy of Sciences

Stockholm Resilience Centre
Stockholm University, Kräftriket 2B
SE-10691
Phone: +46 8 674 70 70
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Organisation number: 202100-3062
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