Sea urchin bio-erosion of Clathromorphum nereostratum skeleton at central and western Aleutian Islands, Alaska from visual surveys, July 2014

Characterization of the degree to which sea urchins have excavated (bio-eroded) the calcium carbonate skeleton of Clathromorphum nereostratum, a long-lived reef-building coralline alga that forms the structural base of the kelp forest. Estimates were derived from field measurements, photoquadrat surveys, and collections, all performed via SCUBA.

海胆对Clathromorphum nereostratum碳酸钙骨骼的挖掘（生物侵蚀）程度表征，该藻是构成海藻林结构基础的长寿造礁珊瑚藻。相关估算数据来源于通过水肺潜水（SCUBA）开展的实地测量、照片样方调查及样本采集。