Tóm tắt
Bioherms of Sabellaria cementarium Moore, 1906 were examined as the habitat of a diversified community in northern Puget Sound, Washington. Aggregations of around 3500 tubes/m2 were found 15–40 m below the surface, in the aphotic zone. A rich assemblage of macrobenthos finds refuge and food in this habitat, which favors most organisms (especially those leading a sedentary life). The community seems stable and is composed of a unique fauna, which differs greatly from the species collected from adjacent habitats with diverse substrates.
