• System-wide Monitoring Program
  •   Phase 1 (Abiotic)
    • Water Quality
      • Site Selection
      • Hydrographic
      • Nutrients
    • Meteorological
      • Introduction
      • Site Selection
      • Methods
    •   Real Time data
      • CDMO
      • YSI
  •   Phase 2 (Biodiversity)
  •   Phase 3 (Land Use)
  • Fact Sheets
•   Current Projects
  • Ecology of Salt Panne Habitats
  • Winter Ecology of Marshbirds
  • Winter Ecology of Shorebirds
  • Diamondback Terrapin Population Surveys
  • ECSC Partnership
• Past Projects
• Graduate Research Fellowships

Phase 1 (Abiotic)

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Water Quality

Site Selection

Bayou Heron

[30° 25.068'N, 88° 24.324'W] The Bayou Heron site provides water quality data for the Bayou Heron sub-watershed. The water depth range is from .16 m to 1.69 m and the salinity range is from 0 ppt to 25.3 ppt. Salinity tends to decrease rapidly when rain events occur at the site or within the watershed. Because the sensor is located .25m from the bottom and there are no major sources of freshwater into this bayou, it has been concluded that some source of freshwater exist close to the bottom of the bayou. Hydrology studies are being designed to further understand this occurrence. This site tends to become hypoxic during warmer months (March - October). The bottom habitat is soft sediments.

Point Aux Chenes Bay

[30° 20.916'N, 88° 25.112'W] The Point Aux Chenes site is the most southern water quality site within the boundaries of Grand Bay NERR. It is located in Point Aux Chenes Bay and is highly influenced by the Mississippi Sound. The water depth range is from .3 m to 1.6 m and the salinity range is from 17.2 ppt to 32.1 ppt. The bottom habitat is soft sediments.

Bayou Cumbest

[30° 23.016'N, 88° 26.184'W] The Bayou Cumbest site monitors water quality for the Bayou Cumbest sub-watershed. The water depth range is from 0 m to 1.10 m and the salinity range is from 0.5 ppt to 27.8 ppt. The site is located in soft sediments with unconsolidated oyster shell reefs.

Bangs Lake

[30° 21.426'N, 88° 27.774'W] The Bangs Lake site monitors the water quality of the Bangs Lake sub-watershed. The water depth range is from 0 m to 1.37 m and the salinity range is from 9.6 ppt to 28.0 ppt. The site is located on a soft sediment bottom.