Fig. 1. Brief scheme of the different steps during the experimental setup, including boxes installation, excavation of holes, inclusion/exclusion of crabs, and chamber insertion (upper panel). Bottom panels show a close view photographs of benthic
chambers into the experimental plots during incubation in NBC treatment at mudflat (left) and in B+C treatments at salt marsh (right) during flooded tide. Notice sampling ports located in chamber lids. Photo credits: E. Fanjul (left-bottom panel);
M. Escapa (right-bottom panel).
Table 1
Statistical summary of ANOVAs fromthe effect of bioturbation on organic matter quality at
mudflats and marshes.