Menu

Javascript is not activated in your browser. This website needs javascript activated to work properly.
You are here

Oceans, lakes and streams

 

Sampling at sea. Photo: Helena Filipsson.
Photo: Helena Filipsson

To understand present- and past aquatic environments we can use the sediment as an environmental archive. In aquatic environments you will find a range of different organisms. For instance one important group single celled organisms are foraminifera, they exist in all marine environments and have often a shell of calcium carbonate. The calcite shells make the foraminifera excellent environmental records as shell is preserved in the sediment and we can use the shell to perform various geochemical analyses.

Another important group is the diatoms which are siliceous phytoplankton at the base of the food web. Diatoms exist both in fresh and marine environments and can tell us about changes in pH, nutrients, light conditions, temperature etc.

 

 

LUCCI - Lund University Centre for studies of Carbon Cycle and Climate Interactions

Department of Physical Geography and Ecosystem Science

Lund University

Sölvegatan 12

S-223 62 Lund, Sweden