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An additional modifier was attributed to all polygons (except Land) to describe the percentage of hardbottom within that polygon. Several of the detailed structure types are heterogeneous in nature (e.g., Aggregated Patch Reefs, Pavement w/ Sand Channels, Spur and Groove), and the purpose of this modifier was to provide additional information about these structure types. It is expected that this will be useful in field survey planning when knowledge of the likelihood of encountering reef/hardbottom in an area is desired, or in estimating the actual amount of hardbottom in a polygon or mapped area. |