One of the world’s lowest salinity marine waters, the Gulf of Bothnia, faces major challenges with an increased risk of algal blooms. The reason is that phosphorus levels in the shallow inland sea are rising. This means that the delicate balance between phosphorus and nitrogen is being disrupted, which in turn affects which organisms thrive in the sea. The new study, led by researchers at Umeå University, shows that a fundamental change in the marine environment is about to take place.
