In situ benthic chamber & coupled IRGA

2012-06-26_Meta_saltmarsh7

in situ based on the method developed by Migné et al. (2002) by measuring CO2 fluxes at the sediment–air interface using a benthic chamber coupled to an infrared CO2 gas analyser (LiCor Li-800).

2012-06-26_Meta_saltmarsh3

Measurements performed under ambient light and in darkness assess, respectively, benthic community net primary productivity and benthic community respiration. This method is an easy, direct and effective way of obtaining a measure of ecosystem functioning, in this case CO2 fluxes at emersion, of different benthic sediment communities.