Marine ecology

Marine ecology field workThe 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

Research projects

The role of morphology and size in the response of the phytoplankton to hydrodynamics

Influence of climate change on the productivity in the Baltic Sea

MESOAQUA-RIVER. Influence of river inflow on coastal environments

Climate related drivers for biological oxygen consumption in the Sea

ECOCHANGE - Ecosystem dynamics in the Baltic Sea in a changing climate perspective

Eutrophication as a selection factor for the occurrence of predation-resistant and potentially pathogenic bacteria in aquatic systems

Water quality monitoring in the Bothnian Sea and the Bothnian Bay

WATERS - Waterbody Assessment Tools for Ecological Reference conditions and status in Sweden

Methyl mercury formation in aquatic systems with different pelagic food web structure and productivity

Influence of river inflow on plankton composition and production in the Baltic Proper, Bothnian Sea and Bothnian Bay

Coastal benthic and pelagic production in the northern Baltic Sea

MIC-MET. Pollutants and Microbial Metabolite Formation

 Effects of global change on phytoplankton communities in the northern and southern hemispheres

Selected publications

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.


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