Salinity is a measure of the concentration of salts in water. Salinity is important for the physiology of plants and animals as well as chemical processes.
The figure at bottom left shows an example of the maximum extent of surface salinity in the estuary (Baptista et al. 2001).
The figure at bottom right shows a generalized distribution of the major benthic infaunal assemblages associated with various salinity zones in the estuary (Jones et al. 1990).
Stressors that affect salinity:
- Extreme climatic events
- Flow regulation
- Shoreline armoring
- Volcanic activity
- Wastewater discharges
- Water diversion
Ecosystem structures that are affected by salinity:
- Scrub-shrub forest emergent marsh
- Mud / sand flats
- Submerged aquatic vegetation
- Shallow slope
- Deep channel
Interactions and equations:
- Salinity vs. sub-aquatic vegetation density
- Salinity vs. crab density