Navigation Links
BP Deepwater Horizon oil spill exacerbated existing environmental problems in Louisiana marshes
Date:6/25/2012

d, the researchers found that the tall grasses along the marsh edge acted as wall-like trap to incoming oil slicks, concentrating oil on the marsh edge. This concentration of oil on the shoreline protected interior marshes from oiling but worsened already extreme erosion on the shoreline. As oiled plants died, their roots that hold tight to the sediment perished as well. Already eroding sediment was now exposed to wave action without the effect of the gripping plant roots.

The result: elevated erosion rates for 1.5 years that averaged more than 10 feet of shoreline loss per year -- double the natural rate for this area.

The encouraging results, Silliman said, included significant declines in the oil concentration on the marsh surface over 1.5 years and that unaffected, healthy marsh plants in the marsh interior quickly grew back into marsh die-off areas that had not yet been lost due to heightened erosion.

When the new marsh plant growth grew into the erosive edge of the marsh, Silliman said, the recolonization of the area by the gripping plant roots shut down the oil-elevated erosion rates and returned them to those seen at marsh sites where oil coverage did not occur.

The researchers also found that polyaromatic hydrocarbons, or PAHs, a carcinogenic byproduct of oil, was 100 percent greater at the Barateria Bay testing site than in reference marshes. This finding provides chemical evidence to support their visual observations that marshes in the affected areas were laden with oil while those in reference areas did not receive significant oiling.

By adding Biochar, a charcoal-based substance, to marshlands, Silliman's team is also using new bioremediation tactics to try to break down PAHs into organic material. If this method is successful, he said, it could be used to supplement naturally occurring microbes in the marsh mud that already oxidize the oil carcinogen. The team is soon to publish those findings.


'/>"/>
Contact: Brian Silliman
brs@ufl.edu
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Study confirms oil from Deepwater Horizon disaster entered food chain in the Gulf of Mexico
2. Study by Haverford College professor reveals unprecedented impact of Deepwater Horizon on deep ocean
3. Microbial communities shifted dramatically after Deepwater Horizon spill
4. Waves of Berkeley Lab responders deploy omics to track Deepwater Horizon cleanup microbes
5. Westpak Deploys Horizontal Impact Test System (HITS)
6. Trouble on the horizon for GM crops?
7. Crabs, insects and spiders vulnerable to oil spill, but also resilient
8. University of Houston study shows BP oil spill hurt marshes, but recovery possible
9. Researchers call for a new direction in oil spill research
10. Marine scientists urge government to reassess oil spill response
11. NCEAS researchers offer new ecological model for deep-water oil spills
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... 22, 2014  The 2014 Holiday Season may be the ... Intelligence reports that the long anticipated floodgates for consumer ... demand for smart phones, tablets, and wearable mobile devices ... 2.5 billion users with nearly 4.8 billion biometric devices ...
(Date:12/17/2014)... DUBLIN , Dec. 15, 2014 Research and Markets ... of the "Samsung Galaxy S5 - Home Button ... offering. http://photos.prnewswire.com/prnh/20130307/600769 ... the iPhone 5S, Samsung introduces for the first time ...
(Date:12/17/2014)... 16, 2014  Automation is fundamentally transforming the travel experience ... borders. Over the past decade, ePassports, biometric readers, and ... process through border control via eGates and Automated Passport ... seaports, and land borders across the globe. ...
Breaking Biology News(10 mins):First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... (UM) Rosenstiel School of Marine & Atmospheric Science Professors Shuyi ... Fellows of the American Meteorological Society (AMS), the nation,s leading ... Dr. Bruce Albrecht, who is a Fellow of the ... Award. The honor of Fellow is given to ...
... announced the 12 projects funded in a fourth ... (PIRE) awards. Many of these projects engage scientists ... energy alternatives, as the need for solutions challenges ... Agency for International Development (USAID) today also announced ...
... Texas at Austin have discovered that the lack of a ... neural tube birth defects in developing embryos. It ... dramatically reduces the incidence of neural tube defects, such as ... birth defects. In some populations, folic acid supplementation has decreased ...
Cached Biology News:Univ. of Miami profs Chen and Soden named Fellows of AMS, Albrecht receives AMS Teaching Award 2Univ. of Miami profs Chen and Soden named Fellows of AMS, Albrecht receives AMS Teaching Award 3NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 2NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 3NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 4NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 5NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 6NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 7NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 8NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 9NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 10NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 11Lack of key enzyme in the metabolism of folic acid leads to birth defects 2
(Date:1/22/2015)... Dr. Greg Leyer of UAS Labs recently was ... Pre-Conference seminar on probiotics in San Diego, CA. , ... conference for health care professionals. This year’s pre-conference seminar was ... in health. Dr. Leyer spoke about the emerging topics and ...
(Date:1/22/2015)... SAN DIEGO , Jan. 22, 2015   ... company, and Sequenom, Inc. (NASDAQ: SQNM ... a development agreement for next generation noninvasive prenatal ... Cypher,s genome interpretation technology, called Mantis™, to advance ...
(Date:12/24/2014)... Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... MDT ) has submitted a pre-market approval application ... the use of Medtronic,s SynchroMed ® II implantable ... use with United Therapeutics, Remodulin ® (treprostinil) Injection ...
(Date:12/24/2014)... Louis, Missouri (PRWEB) December 23, 2014 GMO ... biotechnology company, Syngenta, are in the process of being consolidated ... case is In Re: Syngenta AG MIR 162 Corn Litigation, ... District of Kansas. , Management of the Syngenta GMO corn ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2
... endured a hard struggle, and somehow survived where other ... same sites and domain names must face harsher realities ... Today without visibility, on e-commerce, Web sites are simply ... the right match, they only clash into the billions ...
... is leading the blog tools market space, has all the ... founders - husband-and-wife team of Ben and Mena Trott - ... and created Moveable Type, arguably the best and most widely ... company name represents the number of days between their birth ...
... agricultural and lawn care pesticides may cause injury to ... to a study conducted by researchers at ... in the May 2004 issue of Environmental Health ... Environmental Health Sciences, National Institutes of Health. , ,In ...
Cached Biology Technology:The mysteries and the future of Web sites 2The mysteries and the future of Web sites 3The mysteries and the future of Web sites 4Six Apart hits its adolescence 2Six Apart hits its adolescence 3Six Apart hits its adolescence 4Six Apart hits its adolescence 5Infertility linked to lawn chemicals by Marshfield Clinic researcher 2
... multicolor analysis in a modern flow cytometer, ... that are differentially labeled with fluorescent probes. ... typically used for cell labeling are broader ... a flow cytometers filters. Thus, the fluorescence ...
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: rack ...
... ActiveSight, the leading provider of ... design, offers fragment-based screening services to ... screening involves the binding of drug-like ... crystallized protein drug targets, allowing scientists ...
...
Biology Products: