Figure 2
From: Methane fluxes from coastal sediments are enhanced by macrofauna
Production of methane (a) and nitrous oxide (b) from incubation of glass bottles with animals (P, polychaetes; B, bivalves) and either anoxic (anox) or oxic (ox) water. Different letters indicate significant differences among treatments (Table 1). Vertical columns represent average fluxes, while error bars represent s.e.m. (n = 5 per treatment).
