Research projects

Better manure-management

Manure management

This project will investigate how different manure management scenarios could affect the Baltic Sea environment and provide a useful basis for decisions.  Improved manure management could reduce nutrient pressure on the Baltic Sea.



The Baltic Sea Centre takes part in the project Plant-Fish, which aims to examine whether and how the vegetation and predatory fish benefit each other through positive feedback mechanisms.

Blåstång är en viktig art i Östersjön. Foto: Joakim Hansen

Depth distribution of Baltic bladderwrack

The goal with this project is to investigate how the depth distribution of bladderwrack has changed in the last decade in the Baltic Sea, and to examine reasons for these possible changes.

BNI logga


BalticAPP is a BONUS project that will study both the supply and demand of marine ecosystem services across the entire Baltic Sea region in a spatially and temporally detailed manner.

indikator för grunda Östersjövikar

Indicators for shallow bays

The Baltic Sea Centre has developed a new indicator that can be used to determine the ecological status of shallow Baltic Sea bays based on the bottom vegetation.

Grund vik i Östersjön


The aim of this project is to develop methods to describe the value and magnitude of ecosystem services in the coastal zones, to enable their integration in political decisions and in the end contribute to a sustainable management of the coastal zone.

EMMA karta

Coastal exploitation and marine habitats

In this project we investigate how human activities affect marine habitats in the coastal environment and what type of habitats that are most affected. The goal is also to transmit this knowledge to society and decision makers.

DEMO 1, a workshop on fisheries management


The goal of the DEMO-project is to develop and evaluate an integrated advice for the three main commercial fish stocks in the Baltic Sea, i.e. cod, herring and sprat.

BNI logga


MareFrame seeks to remove barriers preventing a more widespread use of an ecosystem-based approach to fisheries management (EAFM).


Mikroplast i hygienartiklar


Except from pollution by organic substances and heavy metals, there is one more source of pollution that probably is underestimated; anthropogenic particles. Baltic Eye is focusing on this, by for example establishing a Baltic Sea network to solve the problems related to pollution by microplastics.

Det är många faktorer som är med i modellen BALSEM-POP


The largely recognized BALTSEM model is used to assess nutrient/carbon cycles and eutrophication in the Baltic Sea. It has, within this project, been expanded to also include organic contaminant environmental transport and fate.


Seabased measures

This project aims at synthesising existing knowledge and describe potential, risks and relevant scales for measures to reduce eutrophication to the Baltic Sea. Baltic Eye will, in collaboration with international experts, suggest a framework for the scientific questions to address.


Long-time data from Landsort

By analysing data from the monitoring station BY31, this project will investigate the factors that affect the phytoplankton production.

Cyanobacterial bloom

The phosphorous regulation by cyanos

This project will evaluate which conclusions could be drawn from existing data about the connections between access of phosphate and the cyanobacterial blooms.

Asköforskning vid B1

Nutrients in the Bothnian Sea

The oxygen levels in the deep waters of the Bothnian Sea are not as alarming as in the Baltic Proper, but a gradual decrease in the levels is occuring even there. This project will evaluate how this change will effect the nutrient balance.



BACC II offers new and updated scientific findings in regional climate research for the Baltic Sea basin. We participate in the project that consists of researchers from 141 countries, and have especially contributed to this book with the chapter on 'Environmental Impacts—Freshwater Biogeochemistry' (p. 307-336).

BONUS logo


The modelling capacity of the decision support system Nest, will in this BONUS-project, be combined with knowledge about genetic information that is linked to various ecosystem processes, such as denitrification.



BNIs main role within COCOA is to provide a database with basic information of all coastal areas in the Baltic, and help quantifying processes that transform and accumulate nutrients.

BNI logga

Baltic Nest Institute

Our researchers and technicians within Baltic Nest Institute (BNI) continuously develop and improve the model-tool that is used as basis for the eutrophication parts of the Baltic Sea Action Plan (BSAP).


Scientific leader at the Stockholm University Baltic Sea Centre

Researchers, engineers and experts