Bacteriological water quality in the Lake Pontchartrain basin Louisiana following Hurricanes Katrina and Rita, September 2005

Data Series ◽  
10.3133/ds143 ◽  
2005 ◽  
Author(s):  
Donald M. Stoeckel ◽  
Rebecca N. Bushon ◽  
Dennis K. Demcheck ◽  
Stanley C. Skrobialowski ◽  
Christopher M. Kephart ◽  
...  
Keyword(s):  
Water Quality ◽  
Lake Pontchartrain ◽  
Hurricanes Katrina And Rita

scholarly journals Bacteriological water quality in and around Lake Pontchartrain following Hurricanes Katrina and Rita

Circular ◽  
2007 ◽  
pp. 239-244
Author(s):  
Dennis K. Demcheck ◽  
Donald M. Stoeckel ◽  
Rebecca N. Bushon ◽  
David S. Blehert ◽  
Daniel J. Hippe
Keyword(s):  
Water Quality ◽  
Lake Pontchartrain ◽  
Hurricanes Katrina And Rita

scholarly journals Temporal and Spatial Variability in Culturable Pathogenic Vibrio spp. in Lake Pontchartrain, Louisiana, following Hurricanes Katrina and Rita

2011 ◽  
Vol 77 (15) ◽  
pp. 5384-5393 ◽  
Author(s):  
Olivia D. Nigro ◽  
Aixin Hou ◽  
Gayatri Vithanage ◽  
Roger S. Fujioka ◽  
Grieg F. Steward
Keyword(s):  
Virulence Gene ◽  
Lake Pontchartrain ◽  
Data Set ◽  
Content Type ◽  
Pathogenic Vibrio ◽  
Temporal And Spatial Variability ◽  
Hurricanes Katrina And Rita ◽  
Pathogenic Vibrios ◽  
Vibrio Spp ◽  
Sampling Times

ABSTRACTWe investigated the abundance, distribution, and virulence gene content ofVibrio cholerae,V. parahaemolyticus, andV. vulnificusin the waters of southern Lake Pontchartrain in Louisiana on four occasions from October 2005 to September 2006, using selective cultivation and molecular assays. The three targeted pathogenic vibrios were generally below the detection level in January 2006, when the water was cold (13°C), and most abundant in September 2006, when the lake water was warmest (30°C). The maximum values for these species were higher than reported previously for the lake by severalfold to orders of magnitude. The only variable consistently correlated with total vibrio abundance within a single sampling was distance from shore (P= 0.000). Multiple linear regression of the entire data set revealed that distance from shore, temperature, and turbidity together explained 82.1% of the variability in total vibrio CFU. The log-transformed mean abundance ofV. vulnificusCFU in the lake was significantly correlated with temperature (P= 0.014), but not salinity (P= 0.625). Virulence-associated genes ofV. cholerae(ctx) andV. parahaemolyticus(trhandtdh) were not detected in any isolates of these species (n= 128 andn= 20, respectively). In contrast, 16S rRNA typing ofV. vulnificus(n= 298) revealed the presence of both environmental (type A) and clinical (type B) strains. The percentage of the B-typeV. vulnificuswas significantly higher in the lake in October 2005 (35.8% of the total) than at other sampling times (P≤ 0.004), consistent with the view that these strains represent distinct ecotypes.

STUDENT MONITORING OF WATER QUALITY IN THE LAKE PONTCHARTRAIN BASIN

2000 ◽  
Vol 2000 (2) ◽  
pp. 703-711
Author(s):  
A. Bourgeois ◽  
S. Cirillo ◽  
S. Gordon ◽  
D. Boudreaux
Keyword(s):  
Water Quality ◽  
Lake Pontchartrain

WATER QUALITY IMPACTS ON THE LAKE PONTCHARTRAIN ESTUARINE SYSTEM

2000 ◽  
Vol 2000 (10) ◽  
pp. 402-425 ◽  
Author(s):  
Katy Haralampides ◽  
Ioannis Y. Georgiou ◽  
Alex J. McCorquodale
Keyword(s):  
Water Quality ◽  
Estuarine System ◽  
Lake Pontchartrain

Seasonal Analysis of Water Quality along the South Shore of Lake Pontchartrain

2001 ◽  
Author(s):  
Susanne Carnelos ◽  
Donald E. Barbe' ◽  
J. Alex McCorquodale
Keyword(s):  
Water Quality ◽  
Lake Pontchartrain ◽  
The South ◽  
South Shore ◽  
Seasonal Analysis
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