Navigation Links
Could oysters be used to clean up Chesapeake Bay?
Date:1/21/2011

Madison, WI JANUARY 20, 2011 -- Chronic water quality problems caused by agricultural and urban runoff, municipal wastewater, and atmospheric deposition from the burning of fossil fuels leads to oxygen depletion, loss of biodiversity, and harmful algal blooms. This nutrient pollution is prevalent in many coastal marine and estuarine ecosystems worldwide. Chesapeake Bay is the largest estuary in North America and although many efforts have been taken to improve its water quality, nutrient pollution still keeps it at unacceptable levels.

In a study funded by the U.S. Environmental Protection Administration and administered by the National Fish and Wildlife Foundation, biologists at Virginia Commonwealth University measured the nutrient removal capacity of the Eastern oyster, Crassostrea virginica.

Researchers found that an additional 2.5 cm of growth allowed a farmed oyster to remove 2.2 times the nutrients of a regular oyster. In fact, a large scale oyster farm harvesting 1 million of these 76 mm oysters can remove 132 kg of nitrogen, 19 kg of phosphorus, and 3,823 kg of carbon. The full study is available in the January/February 2011 issue of the Journal of Environmental Quality.

Oysters were a novel yet obvious choice to enhance the ecosystem's water quality. They process nutrients while feeding on phytoplankton and then store the nutrients in their shells and tissue through a process known as bioassimilation. Although Chesapeake Bay is a natural habitat for the Eastern oyster, 99% of the native population has been lost. This prompted researchers to explore the use of commercial oyster farms.

Oysters were raised at two commercial-scale aquaculture sites in Chesapeake Bay as well as a site in Maryland and one in Virginia to represent two typical cultivation environments in the Bay. The nutrient contents of the tissues and shells of oysters of various sizes were measured.

According to Colleen Higg
'/>"/>

Contact: Sara Uttech
suttech@sciencesocieties.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2

Related biology news :

1. Vitiligo skin disorder could yield clues in fight against melanoma
2. Saliva proteins could help detection of oral cancer
3. Research about plant viruses could lead to new ways to improve crop yields
4. Nanodiamond drug device could transform cancer treatment
5. UNC study on properties of carbon nanotubes, water could have wide-ranging implications
6. So-called sandfish could help materials handling and process technology specialists
7. Discovery of natural compounds that could slow blood vessel growth
8. Researchers design artificial cells that could power medical implants
9. Herbicide-resistant grape could revitalize Midwest wine industry
10. Sensitive laser instrument could aid search for life on Mars
11. Could Dr. House be replaced by a computer?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... burn scars on this false-color image from the Terra satellite ... year,s rash of wildfires in Eastern Russia. The burn ... green background. The wildfires have broken across the remote ... in this false-color image from the MODIS instrument, it ... fires that continue. Two recent image features noted below show ...
(Date:7/25/2014)... and disrupted brain development is an essential part ... largely unknown. However, thanks to funding from the ... University (GW) researcher Anthony-Samuel LaMantia, Ph.D. may be ... to these key questions in the field of ... and physiology at the GW School of Medicine ...
(Date:7/25/2014)... SEATTLE, WA Nearly 600 scientists from 25 ... Yeast Genetics Meeting organized by the Genetics Society ... of Washington in Seattle. The conference will feature ... cutting-edge research results on topics including gene expression ... discovery, emerging technologies, evolution, aging, and a variety ...
Breaking Biology News(10 mins):GW researcher receives grant to answer the how and why of autism during development 2Yeast meeting to showcase latest breakthroughs in genetics and molecular biology 2
... a young mother is her baby, contend experts who train ... to think of babies as ,ordinary miracles," said Victor Bernstein, ... at the University of Chicago. But adjusting to a baby ... is to help young mothers learn to focus on an ...
... tap into the resources of academia, industry and the ... that it is giving prominence to Sea-based Aviation by ... designation will address specific science and technology (S&T) challenges ... impact of the saltwater environment on unmanned aerial vehicle ...
... scan placed you at risk for osteoporosis, leading your doctor ... A University of Illinois study finds that an effective first ... or taking calcium and vitamin D supplements. "For many ... Karen Chapman-Novakofski, a U of I professor of nutrition and ...
Cached Biology News:New mothers can learn a lot from watching their babies 2New mothers can learn a lot from watching their babies 3ONR puts spotlight on importance of sea-based aviation science and technology 2U of I study: Before you start bone-building meds, try dietary calcium and supplements 2U of I study: Before you start bone-building meds, try dietary calcium and supplements 3
(Date:7/28/2014)... July 28, 2014 /PRNewswire/ -   JOLT , a ... companies to join its growing portfolio of startups. Next-level ... Toronto,s JOLT accelerator, and Cohort four ... roster. Since its launch in July ... raised  $7.5M of financing. Now at 23 investments, JOLT,s ...
(Date:7/28/2014)... , July 28, 2014   Propeller Health ... disease, announced the hire of Brad Towle ... will be responsible for driving the company,s sales growth, ... experience in healthcare, and specifically his past role in ... to the company at this pivotal time in the ...
(Date:7/28/2014)... BRISBANE, Calif. , July 28, 2014  InterMune, ... it will release its second quarter 2014 financial results ... August 6, 2014. A live conference call and webcast will ... that same day. Interested investors and others ... (U.S.) or +1 212-231-2900 (international), conference ID#21728775. A replay of ...
(Date:7/26/2014)... (PRWEB) July 26, 2014 Canada ... key market data on the Canada Endoscopy Visualization ... of US dollars, volume (in units) and average ... High-End Endoscopy Visualization Systems, Mid-Range Endoscopy Visualization Systems ... Report at http://www.marketresearchreports.biz/analysis/213254 . , The report ...
Breaking Biology Technology:JOLT Announces the Next 6 Startups to Join its Summer 2014 Cohort 2JOLT Announces the Next 6 Startups to Join its Summer 2014 Cohort 3Propeller Health Hires Brad Towle as Senior Vice President of Business and Client Development 2InterMune to Release Second Quarter Financial Results on August 6 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 3Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 5
... Inc.,(Nasdaq: ENMD ) a clinical-stage pharmaceutical company ... diseases,announced today that James S. Burns, President and ... the ThinkEquity Partners, 5th Annual,Growth Conference, to be ... Francisco,California, September 17-20, 2007. Mr. Burns, presentation is ...
... Sept. 13 VaxGen,Inc. (Pink Sheets: VXGN) today ... to align its cost structure with,its pursuit of ... VaxGen is reducing its workforce from 61 to ... monthly cash expenditures used in operating,activities to $1.4 ...
... COLUMBIA, Md., Sept. 13 Martek Biosciences,Corporation (Nasdaq: ... presenting at the,upcoming UBS Global Life Sciences Conference ... September 24-27, 2007 at the Grand Hyatt in ... on Tuesday, September 25th at,3:00 p.m. Eastern Time. ...
Cached Biology Technology:EntreMed to Present at ThinkEquity Partners' 5th Annual Growth Conference 2VaxGen Further Restructures to Preserve Cash as It Pursues Strategic Initiatives 2
Hamster serum...
... offered in several versions. The Captiva 0.2 ... are ideal to prepare precipitated protein samples ... and necessary to prevent clogging of expensive ... fiber and 20 um polypropylene filter plates ...
... Kit with CyScribe GFX Purification Kit, ... purification of Cy3- and Cy5-labeled cDNA.Optimized ... cDNA labeling and purification.Flexible and optimized ... labeling reactions with either Cy3- or ...
... CyScribe First-Strand cDNA Labeling System ... Kit, 50 reactions. For the generation ... cDNA.Optimized reagents are packaged together for ... optimized protocols can be used for ...
Biology Products: