It's a colourful world we are living in (2019)



Disturbances in natural plankton communities and in the Planktotrons: setting up the experiment (2018)




Investigating Phytoplankton and Phytobenthos interactions: Sediment and tide in the Planktotrons (2017)

A Coastal Ocean Darkening experiment





The first experiment with a natural marine plankton community in 2016 




 Planktotronic sunrise:


An experiment with natural freshwater phytoplankton communities from Belgium in 2015:




Our first experiment in the PLANKTOTRONS started in November 2014:







Description of the Facility: 

12 indoor mesocosms with 600 l volume (height 120 cm, diameter 80 cm) for marine or freshwater experiments and natural or artificial communities.

3 temperature zones: upper half, lower half, and bottom. Temperature range from 5-25°C for constant temperature (higher for heat wave simulations)

Light: LED-lights simulate daylight with different intensities

Build-in rotor prevents wall growth

Six ports at different levels of the water column for direct sampling

Planktotrons can be connected for metacommunity approaches

Sediment inclusion possible 



Prof. Dr. Helmut Hillebrand,  Dr. Maren Striebel

Carl-von-Ossietzky University Oldenburg

Institute for Chemistry and Biology of the Marine Environment (ICBM)

Schleusenstr. 1

26382 Wilhelmshaven