The marine ecology group focuses on research about land-sea interaction and climate drivers of function and structure of the marine food web. One strategy is to investigate long term ecological time series and explain their variations on different spatial and temporal scales.
The water balance of the Baltic Sea creates a sharp physical-chemical-biological gradient from north to south, providing an opportunity to use the sea basins as full-scale experimental systems. Hypotheses are tested regarding controlling factors for primary production, respiration, fish abundance, fish migration, bacterial growth, food web efficiency , benthic organisms and algae. The time series analyses are complemented by experimental studies in a unique mesocosm facility, laboratory experiments with molecular methods and mathematical models.
Umeå Marine Sciences Centre with its ship and laboratory facilities is an important resource for the research.
Photo: Mikael Molin
Jonsson S, Andersson A, Nilsson MB, Skyllberg U, Lundberg E, Schaefer JK, Åkerblom S, Björn E. (2017) Terrestrial discharges mediate trophic shifts and enhance methylmercury accumulation in estuarine biota. Science Advances. 3(1). Article Number: e1601239, DOI: 10.1126/sciadv.1601239
Ahlgren, J., A. Grimvall, A. Omstedt, C. Rolff, and J. Wikner (2017) Temperature, DOC level and basin interactions explain the declining oxygen concentrations in the Bothnian Sea. J. of Mar. Systems 170: 22-30.
Båmstedt, U., and J. Wikner (2016) Mixing depth and allochthonous dissolved organic carbon: controlling factors of coastal trophic balance. Marine Ecology Progress Series 561: 17-29.
Ask J, Rowe O, Byström P, Andersson A (2016) Importance of shallow soft bottoms for coastal primary production in the Baltic Sea. Ambio DOI 10.1007/s13280-016-0778-5
Figueroa D, Rowe OF, Paczkowska J, Legrand C, Andersson A. (2016). Allochthonous Carbon—a Major Driver of Bacterioplankton Production in the Subarctic Northern Baltic Sea. Microbial Ecology, 71(4), 789-801
Rowe O, Guleikova L, Brugel S, Byström P, Andersson A. (2016) A potential barrier to the spread of the invasive cladoceran Cercopagis pengoi (Ostroumov 1891) in the northern Baltic Sea. Regional Studies in Marine Science 3: 8-17.
Andersson A, Meier HEM, Ripzsam M, Rowe OF, Wikner J, Haglund P, Eilola K, Legrand C, Figueroa D, Paczkowska J, Lindehoff E, Tysklind M, Elmgren R. (2015) Projected future climate change and Baltic Sea ecosystem management. Ambio 44: S345-S356.
Andersson A, Höglander S, Karlsson C, Huseby S. (2015) Key role of phosphorus and nitrogen for the cyanobacterial community composition in the northern Baltic Sea. Estuarine Coastal and Shelf Science 164: 161-171.