Submerged Aquatic Vegetation (SAV) Salinity Zones in the Chesapeake Bay
- Published:
- April 21, 2014
- Categorized in:
- Map
Underwater grasses, also known as submerged aquatic vegetation or SAV, grow in four different salinity zones: tidal fresh, which represents freshwater areas; oligohaline, which represents salinities of 0.5-5 ppt; mesohaline, which represents salinities of 5-18 ppt; and polyhaline, which represents salinities of 18-30 ppt. Because different species of SAV are generally found in waters of a specific salinity range, tracking changes in SAV abundance by salinity zone can help track changes in the abundance of different SAV species. To view and interact with this map through ArcGIS Online, visit ChesapeakeData.