| Biotic Setting | Benthic/Attached Biota |
| Biotic Class | Scrub-Shrub Wetland |
| Biotic Subclass | Tidal Scrub-Shrub Wetland |
| Biotic Group | Brackish Tidal Scrub-Shrub Freshwater Tidal Scrub-Shrub Saltwater Tidal Scrub-Shrub Tidal Mangrove Shrubland |
| Definition | Estuarine or tidal riverine areas dominated by shrub vegetation that has less than 10% tree cover. (The cutoff value is the standard employed by FGDC-STD-005-2008 for defining the Shrubland and Grassland Formation Class [FGDC 2008]). |