Fig. 1From: Do Lanice conchilega (sandmason) aggregations classify as reefs? Quantifying habitat modifying effectsPictures of the low intertidal zone of the beach reserve Bay of Heist. Lanice conchilega aggregations of approximately 1–12 m2 alternate with tube-free areas in this intertidal zone, generating a surface structure of gentle mounds and shallow depressionsBack to article page