Navigation Links
When accounting for the global nitrogen budget, don't forget fish
Date:1/24/2008

Like bank accounts, the nutrient cycles that influence the natural world are regulated by inputs and outputs. If a routine withdrawal is overlooked, balance sheets become inaccurate. Over time, overlooked deductions can undermine our ability to understand and manage ecological systems.

Recent research by the Universit de Montral (Canada) and the Cary Institute of Ecosystem Studies (Millbrook, New York) has revealed an important, but seldom accounted for, withdrawal in the global nitrogen cycle: commercial fisheries. Results, published as the cover story in the February issue of Nature Geoscience, highlight the role that fisheries play in removing nitrogen from coastal oceans.

Nitrogen is essential to plant and animal life; however, it is possible to have too much of a good thing. During the past century, a range of human activities have increased nitrogen inputs to coastal waters. Fertilizer run-off is the best documented and most significant source of terrestrial nitrogen pollution. Nitrogen-rich fertilizer applied to farmland eventually makes its way into coastal waters via a network of streams and rivers.

Research spearheaded by Roxane Maranger (Universit de Montral) and Nina Caraco (Cary Institute) demonstrates that commercial fisheries play an important but declining role in removing terrestrial nitrogen from coastal waters. Accounting for this withdrawal is crucial; terrestrial-derived nitrogen can stimulate coastal phytoplankton growth, leading to eutrophication. Eutrophic waters are characterized by reduced dissolved oxygen, decreased biodiversity, and species composition shifts.

Because fish accumulate nitrogen as biomass, and humans move fish from the ocean to the table, commercial fisheries return part of this terrestrial-generated nitrogen back to the land. In the 1960s, nitrogen removal in fish harvest was equivalent to 60% of the nitrogen fertilizer delivered to coastal ecosystems throughout the world. Today,
'/>"/>

Contact: Lori Quillen
quillenl@ecostudies.org
845-677-7600 x233
Institute of Ecosystem Studies
Source:Eurekalert

Page: 1 2

Related biology news :

1. Accu-Time Systems, Inc. Announces Launch of Next Generation Human Capital Management (HCM) solutions: Global Series(TM)
2. Carbon sink capacity in northern forests reduced by global warming
3. Major study concludes that global warming is killing off coral
4. El Niño affected by global warming
5. Global warming and other research from UCLA summit featured in journal
6. Top scientists meet for global conference on stem cell therapy for cardiovascular diseases
7. Global climate change: The impact of El Nio on Galpagos marine iguanas
8. Global climate change: The impact of El Niño on Galápagos marine iguanas
9. Ancient fish bones reveal impacts of global warming beneath the sea
10. New research discredits $100B global warming fix
11. Woods Hole Research Center debuts new image mosaic that will strengthen global forest monitoring
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... , Dec. 16, 2014  Automation is fundamentally ... more evident than at international borders. Over the ... scanners have allowed veteran travelers to self process ... Control (APC) Kiosks at an increasing number of ... According to Maxine Most ...
(Date:12/11/2014)... 2014  Data Sciences International (DSI), the global ... new series of digital telemetry implants to meet ... series, part of the PhysioTel™ Digital platform, was ... physiologic data when incorporating functional endpoints into repeat-dose ... toxicology studies has evolved from short ECG strips ...
(Date:12/10/2014)... Dec. 08, 2014 Research and Markets ... of the "Biometrics Market in Japan 2014-2018" ... http://photos.prnewswire.com/prnh/20130307/600769 The integration ... as rural banking and upgradation of the driver,s ... in the market. Besides the aforementioned projects, biometrics ...
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 2New telemetry implants expected to change how large animal toxicology studies are conducted 2Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2
... study by Nanyang Technological University (NTU),s Assistant Professor Li ... team have made an important contribution to the understanding ... die. This process known as ,apoptosis, or programmed cell ... which removes perhaps a million cells a second. ...
... Nanostructured materials have garnered great interest worldwide due ... structural, medical and consumer applications. Singapore,s ... a new environmentally friendly method to synthesize a ... synthesis has been recently published in Nature ...
... (NOAA) today published a final rule in the Federal Register ... (EEZ) off the coasts of California, Oregon, and Washington. ... Krill are a small shrimp-like crustacean and a key ... are the foundation for a healthy marine ecosystem," said Mark ...
Cached Biology News:Study by NTU professors provides important insight into apoptosis or programmed cell death 2Facile synthesis of nanoparticles with multiple functions advanced in Singapore 2NOAA bans commercial harvesting of krill 2
(Date:12/24/2014)... -- Rock Creek Pharmaceuticals, Inc., (NASDAQ: RCPI ) ... Application (CTA) with the United Kingdom,s ... approval to initiate clinical trials for the continued development ... on the Company receiving CTA regulatory approval, the Company ... the safety, tolerability and dose escalation of Anatabine Citrate ...
(Date:12/22/2014)... N.C. , Dec. 22, 2014  Alternative ... announced that it has signed a letter of ... that has developed and patented a nanotechnology-based development ... diagnostics products that enable rapid on-site collection and ... use/abuse and health issues in an immediate, non-invasive ...
(Date:12/22/2014)... Fertility Associates of Memphis has announced a new ... network of more than 20 contributing fertility practices ... access to a national pool of frozen donor ... of Memphis is the only fertility clinic in the ... Dr. William Kutteh , director of Fertility Associates of ...
(Date:12/19/2014)... PLEASANTON, Calif. , Dec. 19, 2014  Roche ... acquisition of Bina Technologies, Inc. (Bina), a privately ... California , USA. Bina provides a big ... next generation sequencing (NGS) data. Bina,s proprietary on-market ... translational and academic researchers to perform fast and ...
Breaking Biology Technology:Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3ALNE Announces Intention To Acquire BioTechPharma 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3Roche acquires Bina Technologies and enters the genomic informatics market 2Roche acquires Bina Technologies and enters the genomic informatics market 3
... and Funding Barriers and Paves Way ... for Affordable and Efficient Approach, KAKAMEGA, Kenya, ... and HIV was launched today in the Western,Kenyan district of ... a basic care package consisting of a,PermaNet(R) long-lasting insecticide-treated bed ...
... Institutional Investors to Attend Conference, MONTREAL, Sept. ... today announced that Mr. Pierre Laurin, President,and Chief ... 5th,annual Investor Summit on September 16, 2008 at ... Mark Hopkins InterContinental Hotel in San Francisco., ...
... Calif., Sept. 12 Acologix, Inc., a privately,held ... studies demonstrating that AC-100, its therapeutic product,candidate derived ... and,dental cells, promotes cartilage regeneration in large animal ... A. Middleton-Hardie on September,13, 2008 at the 30th ...
Cached Biology Technology:Integrated Prevention Demonstration Campaign Launched in Western Kenya to Fight HIV, Malaria and Diarrhoeal Disease 2Integrated Prevention Demonstration Campaign Launched in Western Kenya to Fight HIV, Malaria and Diarrhoeal Disease 3ProMetic to present at Merriman Curhan Ford's Investor Summit 2008 on September 16th 2Acologix Presents Preclinical Data on Cartilage Regeneration by AC-100 at the 30th ASBMR Annual Meeting 2Acologix Presents Preclinical Data on Cartilage Regeneration by AC-100 at the 30th ASBMR Annual Meeting 3
... next step in the evolution of laboratory ... that delivers labware to multiple laboratory instruments, ... the throughput of ordinary microplate robots. It ... of configurations to meet any labs specific ...
... applications for the use of small interfering ... via the RNA interference (RNAi) pathway have ... molecular biology fields. siRNA for experimental use ... or enzymatically, and then transfected into the ...
... S&S Custom Array Service enables scientists who have ... to have FAST Slides printed with proteins from ... Processing of the arrays is performed by the ... S&S to discuss your needs with an expert ...
... The high-performance triple quadrupole 1200L ... in today's cost-conscious environment - incorporating ... solutions for all liquid chromatography analytical ... (API) interface and the Transmission Quadrupole ...
Biology Products: