In situ primary productivity measurements on rocky shores

These pictures show the adaptations made to the chambers described in Migné et al 2002 and Golléty et al 2008 to perform in situ measurements of CO2 fluxes on rocky shores as a function of light. In addition to the benthic chamber, a frame holding various light filters allows for the control of the amount of light reaching the chamber. Results from this work contribute to the first carbon budget of a canopy-dominated shore basedon in situ metabolism measurements performed at low tide (work in prep).