Average macrofaunal abundance and biomass and the contribution of each taxonomical group (cru: crustacean, pol: polychaetes, mol: molluscs, ech: echinoderms and oth: others) for each station.

<p>Values averaged over independent replicates: bars denote standard error. A: abundance (individuals m⁻²), in brackets the number of taxa, B: biomass(µg m⁻², the values have been calculated with the gravimetric method).