Mean abundances (± 1 SD) for the four most abundant species in the intertidal sandy shores.

Abundances values are given for the rupture and control areas registered before (February 2010) and after (March 2010, September 2010 and March 2011) the Maule earthquake (27 February 2010). The listed species are the anomuran crab Emerita analoga (Ea, low intertidal), the cirolanid isopod Excirolana hirsuticauda (Eh, mid-intertidal), the talitrid amphipod Orchestoidea tuberculata (Ot, high intertidal), and the ophelid polychaete Euzonus heterocirrus (Eu, low/mid-intertidal).