Fig. 3 in Tropical polychaete community and reef dynamics: insights from a Malayan Sabellaria (Annelida: Sabellariidae) reef

Fig. 3. Diagram illustrating the observed conditions of the polychaete communities. December 2010/January 2011: a = reef barriers; b = detail of a clump of Sabellaria sp. 1 (scale bar = 5 cm). August 2012: c = exposed shell bed, with erosive ridges perpendicular to the shore line with small (longest dimension: 5–20 cm) and scattered clumps of Sabellaria sp. 1; d = detail of a polychaete clump, on top of the shell lag (scale object's diameter = 5 cm). November 2012: e = polychaete reef, with larger and more tightly packed clumps than in c; f = detail of a clump mainly formed by tubes of spionids (scale bar = 3 cm). April 2013: g = the shore covered by a mud layer; h = detail of a patch of coarse sediments, heavily colonised by terebellid worms (scale bar = 10 cm); hatched lines: water's edge during spring low tide