Navigation Links
Potomac River: 10-fold increase in native submerged vegetation reflects improved water quality
Date:9/7/2010

The Potomac River in Washington, D.C. is showing multiple benefits from restoration efforts, newly published research suggests. Reduced nutrients and improved water clarity have increased the abundance and diversity of submerged aquatic vegetation (SAV) in the Potomac, according to direct measurements taken during the 18-year field study.

Since 1990, the area covered by SAV in the lower Potomac has doubled, the area covered by native SAV has increased ten-fold, the diversity of plant species has increased, and the proportion of exotic species to native species has declined as nutrients have declined, according to the study by the U.S. Geological Survey and England's National Oceanography Centre (NOC) in Southhampton, UK.

"Improvements to plant communities living at the bottom of the river have occurred nearly in lock step with decreases in nutrients and sediment in the water and incremental reductions in nitrogen effluent entering the river from the wastewater treatment plant for the Washington DC area," said USGS scientist Dr. Nancy Rybicki.

More than a dozen species of SAV, including the exotic hydrilla, co-exist in this reach of the Potomac that was almost barren in a 1978-1981 USGS study.

"People want to know that money spent on ecosystem restoration is having tangible results, but many feel that efforts to clean up Chesapeake Bay have so far had limited success," said researcher Dr Henry Ruhl of the NOC.

"Upgrades to the wastewater treatment plant have benefited SAV habitats 50-miles downstream. These findings underscore the benefits of nutrient reduction efforts on a major tributary to the Chesapeake Bay," said Rybicki, who has been conducting research on the Potomac since 1979.

"Our results suggest that widespread recovery of submerged vegetation abundance and diversity can be achievable if restoration efforts are enhanced across the bay," said Henry Ruhl of the National Oceanography Centre. "There
'/>"/>

Contact: Diane Noserale
dnoseral@usgs.gov
703-648-4333
United States Geological Survey
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study: Elderly Women can increase strength but still risk falls
2. Methane gas levels begin to increase again
3. Lung airway cells activate vitamin D and increase immune response
4. Exercise increases brain growth factor and receptors, prevents stem cell drop in middle age
5. Scientists find facial scars increase attractiveness
6. European ancestry increases breast cancer risk among Latinas
7. Long-term use of diabetes drugs by women significantly increases risk of fractures
8. Sweetened beverage consumption increases in the US
9. Miscarriage and infertility treatment increase pre-eclampsia risk
10. Common food additive found to increase risk and speed spread of lung cancer
11. Study shows Californias autism increase not due to better counting, diagnosis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 2014  Automation is fundamentally transforming the travel ... at international borders. Over the past decade, ePassports, ... veteran travelers to self process through border control ... at an increasing number of airports, seaports, and ... According to Maxine Most , Principal at ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has ... in India 2015-2019" report to their offering. ... this market is the adoption of multimodal biometric ... characteristic of an individual for verification and identification ...
(Date:12/10/2014)... You,ve been here before: you desperately need to sign into ... key or the answer to your secret question. What,s your ... Today, Hoyos Labs , a digital infrastructure security ... an end to the frustration that comes with usernames, passwords ... a user,s smartphone to acquire his or her biometrics to ...
Breaking Biology News(10 mins):Automated 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 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... 2012 Researchers at the Translational Genomics Research Institute (TGen) ... to a less costly, less invasive and more accurate way ... a major complication of diabetes, high blood pressure and a ... by a progressive deterioration of the kidney,s ability to filter ...
... Biological Chemistry "Paper of the Week" by Wai Mun ... Center and the University of Minnesota reveals new insights into ... tumefaciens , the pathogen responsible for crown gall disease, a ... beets. The bacterium is parasitic: It infects ...
... you,re a male born to a father who,s a strong and enduring ... become a leader yourself, due to the wide range of social advantages ... old man isn,t a leader, other men in your community are more ... on you and showing you the ropes. Sound like ...
Cached Biology News:TGen method isolates biospecimens for treatment of kidney disease 2The old primates' club: Even male monkeys ride their fathers' coattails to success 2The old primates' club: Even male monkeys ride their fathers' coattails to success 3The old primates' club: Even male monkeys ride their fathers' coattails to success 4The old primates' club: Even male monkeys ride their fathers' coattails to success 5
(Date:12/24/2014)... Louis, Missouri (PRWEB) December 23, 2014 ... targeting Swiss biotechnology company, Syngenta, are in the process ... pretrial proceedings. The consolidated case is In Re: Syngenta ... the U.S. District Court for the District of Kansas. ... (MDL) has been handed over to U.S. District Judge ...
(Date:12/24/2014)... December 23, 2014 ... is designed to introduce cutting edge communication ... and partners of platform upgrades. This webinar ... empowering users in their quest to leverage ... , According to SoundConnect’s Marketing Manager, Seanna ...
(Date:12/24/2014)... New York (PRWEB) December 23, 2014 According ... the Long Island Affiliate of ITRA Global, the national office ... but steady recovery. This is evidenced by the third ... strong stock market. Low energy costs have held inflation ... The only negative is the housing market remaining soft. , ...
(Date:12/24/2014)... 2014 Nashville Fertility Center announced that ... for the American Society for Reproductive Medicine (ASRM), a ... in reproductive medicine. In his new role as ... executive board and will have a voice in furthering ... actively supported ASRM since 1984 when he joined while ...
Breaking Biology Technology:Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3
... CA, January 29, 2009 Senomyx, Inc. (Nasdaq: ... quarter and fiscal year ending December 31, 2008 on Thursday, ... markets. The Company will also host a conference call ... a.m. Pacific Time) that same day. During the call, ...
... ST. LOUIS, Jan. 29 Sigma-Aldrich (Nasdaq: ... has signed a distribution agreement with CPC,Scientific, ... peptide synthesis, GMP,peptides and peptide APIs for ... of the agreement, CPC Scientific will offer ...
... Amicus Therapeutics (Nasdaq: FOLD ) will announce ... the regular close of markets on Thursday, February 5, ... live conference call and webcast that afternoon at 5 ... conference call at 5 p.m. EST by dialing 877-675-4756 ...
Cached Biology Technology:SENOMYX, INC. fourth quarter AND FISCAL YEAR-END 2008 Earnings conference call scheduled for February 12, 2009 2Sigma-Aldrich Signs Agreement With CPC Scientific for the Distribution of PEPscreen(R) Custom Peptide Libraries 2Sigma-Aldrich Signs Agreement With CPC Scientific for the Distribution of PEPscreen(R) Custom Peptide Libraries 3Amicus Therapeutics Announces Fourth Quarter and Year End 2008 Financial Results Release Date 2
...
Full-length cDNA clone CS0DJ013YG01 of T cells (Jurkat cell line) of Homo sapiens (human). [Source:Uniprot/SPTREMBL;Acc:Q86SZ3] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
...
All-in-one mix, removes primers and dNTPs from PCR product for following direct sequencing...
Biology Products: