Large predatory fish have become harder to find in the coastal bays of the Baltic Sea, now dominated by sticklebacks. Scientists are still looking for explanations and for if this could have unforeseen climate impacts.

In a new research school, PhD students from diverse disciplines get a unique opportunity to learn how transdisciplinary approaches and research communication can lead to sustainable management of coastal environments.

Is there a difference between healthy and degraded coastal bays in terms of greenhouse gas emissions and uptake? Come with us to Sandviken Bay, where the first of several days of a new sampling campaign took place.

The BALTSEM model is a well-used tool for studying the effects of nutrient inputs to the Baltic Sea. It has now been developed to include methane fluxes, which can provide important knowledge about climate impact.

Reducing nitrogen losses is important to meet environmental targets and bring the nitrogen cycle within sustainable planetary boundaries. More targeted measures are needed in areas where risk of leaching is high.

Next summer, the third UN global ocean conference will be held in France. The Baltic Sea Centre highlights the importance of themes and measures compiled in the new publication "Important measures for the Baltic Sea".

The Commission proposes to increase the quota for central Baltic herring by more than 100 percent next year. Quotas for sprat, salmon and the collapsed herring stock in the Western Baltic are also proposed to be reduced.

Sewage sludge contains high levels of phosphorus - a finite resource in demand by agriculture. Can sewage sludge be reused in a safe way, and does spreading it on fields increase the amount of microplastics?