Navigation Links
AGU journal highlights -- Mar. 26, 2013
Date:3/26/2013

5. Nonnative salmon alter nitrification in Great Lakes tributaries

Nonnative species can affect the biogeochemistry of an ecosystem. For instance, Pacific salmon have been introduced as a sport fishery in many streams and lakes beyond their native range, but their introduction may be altering nitrogen cycling in those ecosystems.

Salmon excrete ammonium, which can be transformed into nitrate by bacteria in a process known as nitrification. Nitrate can be used by plants as an inorganic nitrogen source, but in excess it can also cause potentially harmful algal blooms to grow and, at high concentrations, is considered a pollutant in drinking water.

Levi and Tank measured sediment nitrification rates before, during, and after the salmon run in 2009 to study the effects of nonnative Pacific salmon in five tributaries to the Great Lakes in Michigan and Ontario. Though the variation in nitrification rates was habitat-specific, the researchers observe increases in sediment nitrification rates in these streams. These changes in the form of dissolved inorganic nitrogen can affect nutrient dynamics not only where the salmon are but also in ecosystems located downstream. Fisheries managers may need to monitor the quantity and type of inorganic nitrogen export to avoid possible unintended consequences for ecosystems associated with introduced salmon populations.

Source:
Journal of Geophysical Research-Biogeosciences, doi:10.1002/jgrg.20044, 2013
http://onlinelibrary.wiley.com/doi/10.1002/jgrg.20044/abstract

Title:
Nonnative Pacific salmon alter hot spots of sediment nitrification in Great Lakes tributaries

Authors:
Peter S. Levi1 and Jennifer L. Tank: Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA.


'/>"/>
Contact: Kate Ramsayer
kramsayer@agu.org
202-777-7524
American Geophysical Union
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. Frontiers announces launch of new open-access journal, Frontiers in Public Health
2. Elsevier announces the launch of a new journal: Wound Medicine
3. News tips from the journal mBio®, volume 4, issue 1
4. 66 titles join Wileys journal portfolio in 2013
5. Genetics Society of Americas Genetics journal highlights for March 2013
6. Elsevier announces the launch of a new journal: Methods in Oceanography
7. Georgia Physicians Study Published in The Journal of Urology
8. Established journals to publish under open access model
9. The Geological Society of America Journal Geology: Dynamic geoscience
10. Elsevier announces the launch of a new journal: Journal of Forensic Radiology and Imaging
11. Elsevier announces the launch of a new journal: Anthropocene
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/8/2015)... LAKES , N.J. and NEW YORK ... Company) and Guidepoint today announced BD ... start-up healthcare companies with free access to Guidepoint,s expert ... several start-ups that are developing cutting-edge technologies to improve ... a dedicated Guidepoint research manager, each start-up entrepreneur will ...
(Date:7/7/2015)... Calif. , July 7, 2015  Based ... market, Frost & Sullivan recognizes Credence ID, LLC ... Entrepreneurial Company of the Year Award. Credence ... to aid in its mission of offering enrollment ... populations globally. As Credence ID was formed by ...
(Date:7/2/2015)... Fingerprint Cards has received an order for its ... distributor World Peace Industrial Group (WPI), part of WPG Holdings. ... . Deliveries are planned to take place during Q3 ... manufacturers in Asia . The order value ... of approximately 2,200 MSEK for 2015. Jörgen Lantto, ...
Breaking Biology News(10 mins):BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5FPC Receives Order for Touch Fingerprint Sensors of 268 MSEK 2
... Conservancy (WPC) scientists have discovered a plant in Erie County ... dwarf scouring rush, was identified with the aid of a ... Girard. Dwarf scouring rush is known to exist in ... not been identified in Pennsylvania until this discovery. WPC scientists ...
... The Potato Genome Sequencing Consortium (PGSC), an international ... countries, has released a draft sequence of the potato ... Richard Veilleux, professor of horticulture in the College ... a unique phureja type of potato variety that accelerated ...
... Investigators at Burnham Institute for Medical Research (Burnham), University ... Research Institute (TSRI), Genomics Institute of the Novartis Research ... model, including three dimensional protein structures, of the central ... ( T. maritima ). This is the first time ...
Cached Biology News:Erie County home to plant never before recorded in Pa. 2Draft potato genome based on unique potato variety 2Comprehensive understanding of bacteria could lead to new insights into many organisms 2
(Date:7/30/2015)... July 30, 2015  With over 60,000 customers across the globe, ISN improves the ... hiring organizations with more than 60,000 safe and reliable contractors in over 80 countries. ... ... Over 60,000 ... Headquartered in Dallas, TX , ...
(Date:7/30/2015)... 2015  Discovery Laboratories, Inc. (Nasdaq: DSCO ... second $1.0M tranche under a previously awarded Phase ... at up to $3.0 million to support continued ... a potential medical countermeasure to mitigate acute and ... an initial $1.0 million under this grant in ...
(Date:7/29/2015)... , July 30, 2015 ... results for the second quarter of 2015. CEO ... results and its performance in different businesses. ... http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire Topics covered ... results - Performance drivers ...
(Date:7/29/2015)... July 29, 2015 US-Australian drug discovery company, ... confirmed it is committed to progressing its ground-breaking technology ... practicable and to ensure the Company delivers the best ... Iain Ross , said the Company currently had ... pre-clinical programs, discovery programs and academic partnerships and initiatives, ...
Breaking Biology Technology:ISN Reaches Over 60,000 Worldwide Customers 2ISN Reaches Over 60,000 Worldwide Customers 3Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 2Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10
... Mich., April 15 GeneGo, Inc., the leading,systems ... Science Institute has joined the MetaMiner Cardiac,Consortium. The ... first systems,biology and pathway analysis platform for cardiovascular ... on deliverables that will include,disease specific pathway maps ...
... April 15 WallSt.net,s 3-Minute Press Show is,a ... Tolentino., Shows air Monday through Friday on:, ... Show features in-depth interviews with,public company executives on ... is designed to provide viewers with insight into ...
... /PRNewswire-FirstCall/ - AEterna Zentaris Inc.,(NASDAQ: AEZS ; ... therapy and oncology, today reported the completion of ... its Phase 3 program,in benign prostatic hyperplasia (BPH), ... product candidate, cetrorelix. The study,involves approximately 600 patients ...
Cached Biology Technology:The Scripps Translational Science Institute Joins The MetaMiner Cardiac Consortium 2Featured Stocks on Today's Edition of WallSt.net's 3-Minute Press Show: NPHC, PECD, PNRR 2Featured Stocks on Today's Edition of WallSt.net's 3-Minute Press Show: NPHC, PECD, PNRR 3AEterna Zentaris Completes Patient Recruitment for First Phase 3 Efficacy Trial with Cetrorelix in Benign Prostatic Hyperplasia 2AEterna Zentaris Completes Patient Recruitment for First Phase 3 Efficacy Trial with Cetrorelix in Benign Prostatic Hyperplasia 3AEterna Zentaris Completes Patient Recruitment for First Phase 3 Efficacy Trial with Cetrorelix in Benign Prostatic Hyperplasia 4
... Peptide microarrays containing peptidomimetics built ... microfluidic on-chip synthesis platform. These microarrays ... comprehensive Custom Peptide Microarray Service. ... content is completely customer specified. Thousands ...
... of Molecular Imaging (MI) Software for use ... research and drug discovery applications. The Regulatory ... and Drug Administrations Code of Federal Regulations ... Signatures [21 CFR Part 11]. KODAK MI ...
... first time, you can identify and characterize ... without interferences. The Agilent Multiple Affinity Removal ... high-abundant proteins from human serum, plasma, CSF ... device. With this revolutionary system, you can: ...
... Chemicon Select Tissue Arrays are intended for ... tissues were fixed in neutral buffered formalin ... and diagnosis was performed by certified pathologists. ... paraffin blocks and relocated into a new ...
Biology Products: