Fig. 1From: Does rock type account for variation in mussel attachment strength? A test with Brachidontes rodriguezii in the southwestern AtlanticStudy sites. Substrate types are loess cemented by calcium carbonate (soft rock, open circles), orthoquartzite (hard rock, filled circles), natural loess platforms and orthoquartzite blocks introduced to form groins or revetments (half-filled circles)Back to article page