Effects of changes of environmental drivers on the structure and productivity of the microbial food web

Theme 1

EcoChange researchers Joanna Paczkowska, Owen Rowe and Daniela Figueroa sampling water for analyses of dissolved organic carbon in the northern parts of the Baltic Sea. Photo: Mikael Molin.

Questions addressed within theme 1:

  • How will an increased river run-off and load of dissolved organic carbon affect light climate and inorganic nutrients in the Baltic Sea? What are the consequences for microbial food web structure and productivity?
  • Will climate-induced changes in temperature, salinity and dissolved organic carbon favour mixotrophic phytoplankton species in the Gulf of Bothnia, while increasing nitrogen-fixing cyanobacteria in the Baltic Proper? And if the climate-induced changes are reverted to past levels, will cyanobacteria blooms decrease and plankton biodiversity be restored?
  • Will bacterioplankton communities respond to increased temperature or levels of dissolved organic carbon in the same manner in the Baltic Proper as in the Gulf of Bothnia? And will Baltic Proper bacterial communities exposed to elevated concentrations of dissolved organic carbon be able to revert to their original state if again exposed to past, lower, levels of dissolved organic carbon?

Page Editor: Kristina Viklund

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Theme 1

Theme Leader

Catherine Legrand
School of Natural Sciences
Linnaeus University 

Tel:  +46 480 447 309

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Theme 1 Co-workers

Catherine Legrand
Jarone Pinhassi
Markus Lindh
Carina Bunse
Emil Fridolfsson
Oscar Nordahl
Lovisa Svensson
Emmelie Nilsson
Kristofer Bergström
Mireia Bertos Fortis

Agneta Andersson
Owen Rowe
Daniela Figueroa
Liudmyla Guleikova
Joanna Paczkowska