Image: Marlene Johansson
Image: Marlene Johansson
Research project Historically, phosphorus has been pointed out as the limiting nutrient in large parts of the Gulf of Bothnia. However, recent data indicate elevated phosphorus concentrations and increasing nitrogen limitation. This project addresses how the nutrient concentrations vary over time and space and how the phytoplankton composition changes with varying environmental conditions.
Assessment of the eutrophication status in the Gulf of Bothnia is difficult due to limited knowledge of the nutrient conditions and the phytoplankton responses to changes in the environment. Historically, phosphorus has been pointed out as the limiting nutrient in large parts of the Gulf of Bothnia. Recent data indicate elevated phosphorus concentrations, and that nitrogen limitation increases. Application of the present EU WFD system often provides contrasting status classification in the Gulf of Bothnia. Thus, there is a great need to investigate how the nutrient concentrations vary over time and space and how the phytoplankton composition changes with varying environmental conditions.
Within the project the nutrient dynamics and effects of anthropogenic activity on limiting nutrient and eutrophication in the Gulf of Bothnia are elucidated.
Information in published reports and scientific papers is analyzed, and data from monitoring and recipient control programs (SRK) is compiled. We also include data from various research projects in the syntheses. The project is performed in close collaboration with Kustgrupp Nord, representing all County Administrative Boards along the Gulf of Bothnia. The results are usable in achieving efficient marine management.
Here we list the publications produced within the project.
Master thesis 2023
Tracking wastewater emissions in rivers entering Gulf of Bothnia
Helen Chimwewe Shaine Mkandawire
Master thesis 2022
Limiting substance in the Bothnian Sea: A changing marine system
Nadja Johansson
