EcoChange news

EcoChange digs deep into disrupted food web

2017-12-08
Climate change will make the marine food web less efficient, and toxic substances will increase in fish and other organisms. This became clear during the first phase of EcoChange, and now it´s time to dig deeper into these questions. “A large part of our work concerns what the effects of the loss in...

Uptake of mercury in focus

2017-11-03
Erik Björn, researcher at the department of Chemistry at Umeå University, has together with his research group performed several conspicuous studies on methylmercury in aquatic environments, and how climate change will affect the amounts of this toxin in the ecosystem. However, an important but stil...

EcoChange participates in worldwide contaminant monitoring

2017-10-23
Persistent organic pollutants, POPs, can be harmful to living organisms even in low concentrations. They are stable and persistent, and can be found far away from their sources. Until recently the systematic monitoring of these substances has been done mainly in air. Focus is now gradually moving to...

Mercury in the UMF mesocosms

2017-09-19
The twelve mesocosms at Umeå Marine Sciences Centre are running at full speed. During five weeks experiments are performed by a research team led by Erik Björn and Agneta Andersson, Umeå University. They are hoping to find out how humic substances influence the accumulation of methyl mercury in the ...

Pathogenic bacteria train their defence in lakes and oceans

2017-05-04
Peter Mathisen at Umeå University has found links between the aquatic environment and the spreading of diseases such as tularaemia. The results indicate that aquatic environments act as “gyms” for bacteria, where the presence of predators train their defence against being killed and eaten up. The re...

More river water decreases the coastal sea production

2017-02-01
When the discharge of river water into the sea increases, for example as an effect of climate change, the ratio between phytoplankton and bacteria production will change. Phytoplankton growth is disfavoured by both the organic carbon in the river water and the changes in depth of the upper layer of ...

BBC reports on climate research in Umeå

2017-01-31
The BBC has interviewed researcher Erik Björn owing to his internationally recognized new study that shows that climate change could lead to up to seven times more toxic mercury in fish.

Climate changes may lead to more poisonous mercury in plankton

2017-01-27
Global warming is expected to increase runoff and input of organic matter to aquatic ecosystems in large regions of the Northern hemisphere including the Baltic Sea. Research performed in Sweden is now indicating a sevenfold increase in poisonous methylmercury in zooplankton as a consequence. This i...

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