Detection of Salmonella spp. from Mississippi Coastal Waters and Sediment

Author(s): Carr, M. ;  Ellender, R.;  Flood, C.

Traditionally, the examination of individual pathogens for assessment of water quality has not been employed. This is mainly due to the cost and time requirements required to perform the appropriate morphological and biochemical analysis for positive identification of these pathogens. However, the employment of molecular analysis techniques supplemented with traditional techniques allows for more rapid and accurate identification. The main goal of this research is to determine if the marker stn, which codes for an enterotoxin gene specific for salmonella, is present within Mississippi Gulf Coast waters and creek systems, which flow into the Gulf. This research also is aimed at determining if the salmonella marker is present within coastal sediments. Environmental factors such as salinity, temperature, tidal currents, and significant weather related events will be examined to understand the relationship to the presence of the salmonella marker. Examination of salinity’s effect on both laboratory grown and environmentally isolated Salmonella indicates a difference in the survivability of this pathogen within given concentrations of NaCl in situ. Analysis of Salmonella subspecies in coastal waters and sediments using both traditional and genetic analysis has demonstrated that this bacterium is frequently found in samples from fresh water creeks but is found infrequently in coastal waters. Further, sediment samples to date have not revealed the presence of Salmonella, implying that this environment is not conducive to the survivability of this animal pathogen.


Technical Presentations

  • Delta Water Quality
  • Delta Water and Agriculture
  • Wetlands
  • Water Quality
  • Sediments
  • Non-Point
  • Management and Sustainability
  • Wood Treatment
  • Modeling
  • Soil and Water Treatment


Responsible Site Design: Implementing Innovative Stormwater Management Strategies

The primary goal of the workshop is to create a dynamic learning experience that examines the role of stormwater management in the built environment. The workshop will focus on integrating ecologically sound water management approaches into site design. After the workshop, attendees will be familiar with the following concepts and technical issues:

  • Knowledge of the stormwater treatment chain
  • Knowledge of the impact of land use codes on stormwater management
  • Application of a design process that mitigates the effects of stormwater on-site
  • Knowledge of the relationship between land use codes and design for innovative stormwater management


For information contact:
Jessie Schmidt
Box 9680
Mississippi State, MS 39762