Figure 7.

Diagrams of apparatus Diagrams of the apparatus used to assess the concentration gradient in the canopy: sample collection tube system (7a) and to assess the nutrient fluxes: benthic chamber (7b) and benthic cylinder (7c).

Gobert et al. BMC Ecology 2002 2:9   doi:10.1186/1472-6785-2-9
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