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Baltic Sea Day 2021


Date: Thursday 7 October 2021

Time: 09.00 – 16.30

Location: Vivi Täckholm lecture hall, NPQ-building, Svante Arrhenius väg 20 & online

Welcome to join this year's conference on Baltic Sea research at Stockholm University! Open the broadcast by clicking "play" below:

This Baltic Sea Day we will high-light Stockholm University’s ongoing research from seven departments on different anthropogenic pressures in the Baltic Sea, as well as methods and techniques that can be used in assessments and management support. Welcome to join us on 7 October.

Information for participants attending online:

The conference will be broadcast above. We highly encourage our remote audience to join the discussions, using, code #108954

Information for participants attending on campus:

How to find the Vivi Täckholm lecture hall (6089 Kb) .

You need to be registered for this event to participate on campus.


All abstracts and more information about the speakers and sessions are available here:

Abstract book (11640 Kb)


9:00-9.10 Welcome to the Baltic Sea Day!

  • Christoph Humborg, Scientific leader, Stockholm University Baltic Sea Centre

9:10-10:40 Biodiversity and ecosystem functioning

  • Monika Winder, Biotic interactions of Baltic Sea plankton communities identified by DNA metabarcoding and network analysis
  • John Taylor, Reevaluating the age-0 herring bioenergetics model
  • Henrik Svedäng, Understanding population separation mechanisms in the herring complex on the Swedish east coast
  • Johan Eklöf, Effects of seasonal fishery closures on shallow coastal fish and food webs
  • Anja Carlsson, Grey seal pupping in the Baltic

Coffee - Will be served in the NPQ-building 

11:00-12:10 Remote sensing techniques for water resource assessments

  • Farzad Vahidi Mayamey, Improving water extent monitoring of Swedish wetlands with open-source satellite data and Google Earth Engine
  • Noemi Marsico, Remote sensing application to evaluate the relationship between discharge and water quality on the Swedish Baltic Coast
  • Mehri Tabarmayeh, Predicting groundwater levels in Gotland island, Sweden, with time series modeling
  • Saeid Aminjafari, Water Level Changes in Small Lakes in Sweden Using High- Coherence Pixel Interferometry

Lunch - Will be served in the NPQ-building

13:00-14:25 Eutrophication management

  • Benoit Dessirier, Dynamics of nitrogen legacies in agricultural landscapes
  • Julián García, Assessing the retaining nutrient effectiveness of constructed wetlands as Nature-based Solutions in Sweden 
  • Guillaume Vigouroux, Investigating land-sea and hydroclimatic linkages for coastal eutrophication management in the Baltic Sea 
  • Samaneh Seifollahi-Aghmiuni, Systems thinking approach for integrated understanding of land-sea interactions in the Baltic region
  • Inga Koszalka, The surface drift and algae blooms in a changing Baltic Sea climate

Coffee - Will be served in the NPQ-building 

14:45-16:15 Multiple stressors and assessment tools

  • Clare Bradshaw, Suspension of sediment and release of nutrients by trawling on Baltic seabeds
  • Gastón Alurralde, Reproductive disorders and contaminant exposure drive isotopic variability in Monoporeia affinis 
  • Hoi Shing Lo, Plastic litter in macrophyte system: environmental fate and ecological implications
  • Thorsten Blenckner, Challenges to assess ocean health – examples from the Baltic Health Index
  • Navid Ghajarnia, Developing an Educational Negotiation Game for the Baltic Sea’s Environmental Problems

16:15 Closing remarks and welcome to Baltic Bar!
We are happy to finally re-open the Baltic Bar in the Department of Ecology, Environment and Plant Sciences' lunch room! Welcome to wind up an intense conference day with your colleagues. Beverages are available at cost price. 


About the Baltic Sea Day
2021 marks the start of the UN Decade of Ocean Science for Sustainable Development to support efforts to reverse the cycle of decline in ocean health. In addition, the global policy agendas are packed with discussions and negotiations on climate, biodiversity and ecosystem restoration – not least in the coming COP-meetings this fall and in the spring of 2022.

The awareness of the oceans’ role in these issues is increasing, thanks to advances in science and outreach efforts by the research community.

At Stockholm University researchers have studied the Baltic Sea and its challenges in diverse disciplines for more than six decades. The majority focus on scientific issues that are important for a better understanding and management of the Baltic Sea and its catchment area, and several research fields are considered world leading.

The Baltic Sea Day highlights frontier science on our unique sea by showcasing this broad set of expertise at the university. Organisers of the conference is the multi-disciplinary research network Baltic Sea Fellows

Questions? Please contact