Navigation Links
Fecal microorganisms inhabit sandy beaches of Florida
Date:5/13/2008

Traditionally, the cleanliness of a beach is monitored by sampling the bathing water a few meters from shore. But since sand is an effective filter, it follows that fecal bacteria (those from sewage) may be concentrated in the sand as the tide flows and ebbs. Moreover, trapped bacteria are offered a large surface area for attachment, nourishment from nutrients in sand crevices, and protection from sunlight. These bacteria might be afforded greater survival opportunities and may even be nourished enough to replicate in the beach environment. Dr. Andrew Rogerson, formally of the Oceanographic Center of Nova Southeastern University, Florida, headed an Environmental Protection Agency study to determine the levels of fecal-derived bacteria in Florida beach sand and look for health implications. Early results showed that wet sand (in the intertidal zone) and dry sand above the intertidal zone had significantly more fecal bacteria than near-shore seawater. This lead to the question do indicator bacteria survive longer in sand relative to open water" A series of laboratory experiments were conducted to answer this question and the results are presented in the May-June issue of Journal of Environmental Quality.

All the feces-derived bacteria (i.e. traditional indicators of sewage contamination) were capable of enhanced survival in sand and, more importantly, were capable of growth in the sand leading to much higher numbers. Conversely, in seawater the bacteria steadily decreased in number over time. Results also showed a rapid drop off in bacterial numbers in bathing water sampled close to the sand compared with 5, 10 or 20 m from shore. This indicates that the shoreline water is affected by bacterial run-off from the sand.

This has implications for beach managers since the number of bacteria from feces (fecal bacteria) in the water is used to assess the presence of sewages. A high count of these indicator bacteria would require the beach to be closed,
'/>"/>

Contact: Sara Uttech
suttech@soils.org
608-268-4948
Soil Science Society of America
Source:Eurekalert

Page: 1 2

Related biology news :

1. Research team finds that microorganisms filter nitrogen from small streams
2. Palm Beach County wants to establish a Max Planck Institute in Florida
3. New south Florida nursery to focus on staghorn corals
4. ASNTR 15th anniversary meeting to be held May 1-3 in Florida
5. DHS Expands Biometrics-at-Sea Program to the Florida Straits
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/24/2014)... very pleased to announce that it has assumed ownership ... the University of Wisconsin. , The Journal ... peer-reviewed journal that publishes papers on all aspects of ... the molecular to the ecological -- as well as ... to individuals and institutions, and it provides a reasonably ...
(Date:4/24/2014)... offsetting initiatives could be improved with new insights into ... , Scientists studying the Amazon Basin have revealed unprecedented ... across the region by comparing satellite maps with hundreds ... researchers to assess more accurately the amount of carbon ... in carbon offset schemes, in which trees are given ...
(Date:4/23/2014)... of NASA satellite data shows Africa,s Congo rainforest, the ... large-scale decline in greenness over the past decade. , ... Albany, State University of New York, shows between 2000 ... forest area and intensified. The research, published Wednesday in ... observational studies to explore the effects of long-term drought ...
Breaking Biology News(10 mins):ESA to publish the Journal of Insect Science 2Amazon rainforest survey could improve carbon offset schemes 2NASA satellites show drought may take toll on Congo rainforest 2NASA satellites show drought may take toll on Congo rainforest 3
... way to synthesize a cancer-killing compound called rasfonin in enough ... fungus discovered clinging to the walls of a New Zealand ... leaving healthy cells untouched. , "In 2000, scientists in Japan ... a prototype anticancer agent, but no one has been able ...
... lung tumors in some human patients just 3-4 months ... University of Pittsburgh Medical Center will report in early ... Association of Physicists in Medicine in Orlando. Although ... effectiveness, Ozhasoglu and his colleagues find promise in this ...
... Institute-led team has identified a molecule that plays a ... each side of the adult brain. , QBI ... her group's research provided new clues regarding development of ... shuttles information between the left and right hemispheres of ...
Cached Biology News:New lab technique churns out fungus' potential cancer fighter 2Radiation-armed robot rapidly destroys human lung tumors 2
(Date:1/14/2014)... Communications, a leading provider of strategic communications services to corporations and ... the United States and Europe ... JD, is returning to the firm,s Washington, D.C. ... more than two years of service as Associate Commissioner for the ...
(Date:1/14/2014)... Texas , Jan. 14, 2014 The ... and research medicinal plants and therapeutic derivatives thereof ... health professionals, and researchers about the challenges of ... http://photos.prnewswire.com/prnh/20100430/DC95601LOGO ) The Society ...
(Date:1/14/2014)... Toronto, Canada (PRWEB) January 14, 2014 ... and its motives and methods in product development and ... of the industry. This mistrust, fueled by concerns about ... further fed by reports of spectacular fines to the ...
(Date:1/14/2014)... Kinaxis ®, provider of RapidResponse ®, a cloud-based supply ... ( S&OP ) service, is proud to be a gold ... held at the Hilton San Diego Bayfront, January 30 – ... Kaszas , Director of Supply Chain at Amgen, as she ...
Breaking Biology Technology:Former FDA Associate Commissioner Returns To 3D Communications 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2
... but it happens every year twice, in fact, as I ... no exception. , ,After four months of interviewing more than ... turn the raw ingredients of the selected companies into a cohesive ... business development execs who come to the event each year. , ...
... Wis.-based Fiserv, Inc., will expand its services to the ... the company announced Tuesday. , ,Through a multi-year agreement ... MetaVance Administration & Finance Application and hosting services, aimed ... this new solution to provide greater insights into business ...
... Wis. Berbee Information Networks ... "Small Business Specialist" in Madison, the company ... access to training specifically designed for the ... partner offers, and the ability to use ...
Cached Biology Technology:DEMOfall - A return to simplicity 2DEMOfall - A return to simplicity 3
AdestaTM Tissue/Cell Preservation Medium Sterile / Non-sterile: Sterility Tested Endotoxin: ...
... the first all-inclusive collection of key procedures ... System. Methods developed by the leaders in ... protocols. This book will guide you from ... construction and analysis, to production of your ...
Rad 51C Immunogen: His-tagged human Rad 51C, over-expressed in E. coli Storage: 4 C...
...
Biology Products: