Navigation Links
R.I. nitrogen cycle differs in bay and sound
Date:4/28/2014

ed at key measures of oxygen, nitrate, nitrite, and ammonium and organic matter in the sediments and measured environmental conditions such as salinity and temperature at the sites. They also performed experiments on the sediment cores to determine their potential denitrification and anammox rates.

What they found was that in the sounds annamox contributed between 8 and 42 percent of the N2 produced (denitrification produced the balance), while annamox produced no more than 4 percent of the N2 in sediments from the estuary or the bay.

Anammox activity wasn't seasonal in either locale, they found, and the waters were comparably salty. What did differ, however, was that compared to the sediments of the sounds, the estuarine and bay sediments had less oxygen mixed in and therefore less nitrate. Those factors were associated with less anammox activity.

So the questions Rich is now asking come down to why oxygen and nitrate levels vary in sound and bay sediments.

One of Rich's observations has been that in the sound's sediments, but not the bay's, little shrimp burrow and effectively promote the mixing in of oxygen.

It's speculation to blame a lack of the shrimp for the bay's dearth of anammox, Rich said, but it is a new hypothesis worth consideration. In the meantime, what the new study suggests is that Rhode Island's bay waters somehow lack the proper conditions to activate an important process in returning nitrogen from the sea to the air.


'/>"/>

Contact: David Orenstein
david_orenstein@brown.edu
401-863-1862
Brown University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Nitrogen pollution, climate and land use: Why what we eat matters
2. Patented research remotely detects nitrogen-rich explosives
3. Study resolves controversy over nitrogens ocean exit strategies
4. Nitrogen source determined significant for inflorescence development in Phalaenopsis
5. Nitrogen-tracking tools for better crops and less pollution
6. Nitrogen management studied in greenhouse pepper production
7. Floods didnt provide nitrogen fix for earliest crops in frigid North
8. Nitrogen fertilizer remains in soils and leaks towards groundwater for decades, researchers find
9. Microbes capture, store, and release nitrogen to feed reef-building coral
10. Nitrogen has key role in estimating CO2 emissions from land use change
11. Global nitrogen availability consistent for past 500 years, linked to carbon levels
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
R.I. nitrogen cycle differs in bay and sound
(Date:1/22/2015)... Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ON), is pleased to inform ... State of Washington,s Department of Licensing, in the ... issuance system for driver,s licenses and identification cards to its ... development will start in January 2015, with enrollment and card ...
(Date:1/22/2015)... MELBOURNE, Fla. , Jan. 13, 2015  Today, ... wearable technology, launched its crowdfunding campaign on Fundable, ... accelerate the build of production capacity to meet ... Photo - http://photos.prnewswire.com/prnh/20150113/168790 ...
(Date:1/22/2015)... 2015  BellBrook Labs, a leader in high throughput ... of a TR-FRET (time resolved Forster resonance energy ... a high throughput screening assay for glycosyltransferases and ... for sensitive detection of hundreds of human and ...
Breaking Biology News(10 mins):Valid USA Signs Contract For Washington Driver's License Issuance 2FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2
... must outwit the immune system of the host. To ... transport channel located in the bacterial membrane. In some ... enabling them to inject virulence factors directly into the ... the Federal Institute for Materials Research and Testing have ...
... Molecular Biology (ASBMB) has announced that George R. ... Clinic,s Lerner Research Institute and emeritus professor of ... recipient of the society,s 2011 Herbert Tabor/ Journal ... The lectureship recognizes outstanding lifetime scientific achievements and ...
... Researchers at Texas A&M University College of Veterinary Medicine & ... delivery of a foal using oocytes from a live mare, ... the foal highlights Texas A&M,s long tradition of leading science ... the owner of the new foal., "I,ve always liked having ...
Cached Biology News:How bacteria make syringes 2Dr. George Stark receives 2011 Herbert Tabor/Journal of Biological Chemistry Lectureship from ASBMB 2Texas A&M veterinary researchers achieve cloning first 2Texas A&M veterinary researchers achieve cloning first 3
(Date:1/22/2015)... January 22, 2015 Controlled Substance Compliance ... which helps companies check the legal requirements around using ... to China. , As their international operations expand ... adopting software solutions built as a result of the ...
(Date:1/22/2015)... 2015  Varian Medical Systems (NYSE: VAR ), world ... its commitment to sustainability with inclusion on a prestigious list ... ranked healthcare equipment company among the Corporate Knights Global 100 ... Forum at Davos, Switzerland . ...
(Date:12/24/2014)... and NEW YORK , Dec. 24, 2014 ... advancing patient care in critical areas, announced the closing of ... and warrants to purchase up to an aggregate 3,500,000 shares ... share and $.01 per warrant.  The warrants have a per ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 Earlier this year ... Sherley, director of the Adult Stem Cell Technology Center, LLC ... under appreciated unique property of adult tissue stem cells. ... the Past, Important for the Future,” embodied the essence of ...
Breaking Biology Technology:Global Compliance Service for Controlled Substances to Expand to China 2Varian Honored Among World's 100 Most Sustainable Corporations 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4
... 13 /PRNewswire-FirstCall/ - Oncothyreon Inc. (Nasdaq: ONTY ... of innovative therapeutic products for the treatment of cancer, ... Executive Officer, will present at the Invest Northwest 2009 ... 18, 2009. , A live and archived webcast of ...
... -- DOR BioPharma, Inc. (OTC Bulletin Board: DORB) ... Brian L. Hamilton, MD, PhD, as Senior Vice President and ... both the global development of topically active steroids as well ... and distinguished career of more than 25 years in both ...
... ST. LOUIS, March 13 Varian Medical Systems (NYSE: ... products for the non-destructive testing market at the upcoming ASNT ... at the Millennium Hotel in St. Louis, MO.The company will ... , , ...
Cached Biology Technology:DOR BioPharma Appoints Brian L. Hamilton, MD, PhD as Chief Medical Officer 2DOR BioPharma Appoints Brian L. Hamilton, MD, PhD as Chief Medical Officer 3DOR BioPharma Appoints Brian L. Hamilton, MD, PhD as Chief Medical Officer 4DOR BioPharma Appoints Brian L. Hamilton, MD, PhD as Chief Medical Officer 5Varian Medical Systems to Exhibit X-ray and CT Technologies for Non-Destructive Testing at the Upcoming ASNT 18th Annual Spring Conference 2
...
...
... Distributed exclusively by BioLegend, the Quansys ... for multiplex analysis of cytokines/chemokines for human, ... Cytokine Array is a fully quantitative ELISA-based ... been absorbed to each well of a ...
Caliper offers a wide array of standard LabChip products designed to be used in combination with our AMS 90 and LabChip 3000 microfluidic platforms....
Biology Products: