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:12/10/2014)... , Dec. 08, 2014 Research and ... the addition of the "Biometrics Market in ... http://photos.prnewswire.com/prnh/20130307/600769 ... projects such as rural banking and upgradation of ... trends witnessed in the market. Besides the aforementioned ...
(Date:12/3/2014)...   Marvin Test Solutions , a trusted ... military, aerospace, and manufacturing organizations, today announced the ... TS-900 PXI semiconductor test platform . The TS-960 ... to customers at a fraction of the footprint ... "Our semiconductor customers asked for ...
(Date:11/21/2014)... REDMOND, Wash. , Nov. 20, 2014 ... access for the Internet of Things (IoT), today announced ... position of chief operating officer. Previously a strategic advisor ... marketing, finance, and operations. Mr. Traynor is based out ... . He reports to Chris Muench , ...
Breaking Biology News(10 mins):Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2
... An early type of antibiotic-resistant bacteria that caused a ... as one of the community-acquired MRSA 'superbugs', according to ... April 2005). , This "re-equipping and re-emergence" of a ... mean that community acquired MRSA will spread faster and ...
... have been calling for an improved database that would ... strategies. Botanists at the University of Bonn have now ... publication, in the Journal of Biogeography, of a world ... in 867 zones, known as ecoregions. "This makes the ...
... the Universitat Autònoma de Barcelona has developed new miniature ... size and thickness as a fingernail and reduce the ... or a few hours, depending on each chain. These ... from paternity tests and identifying people to detecting genetically ...
Cached Biology News:Community MRSA is re-emergence of 1950s pandemic, study suggests 2Scientists map the world for nature conservation 2New miniaturised chip dramatically reduces time taken for DNA analysis 2New miniaturised chip dramatically reduces time taken for DNA analysis 3
(Date:12/24/2014)... NEW YORK , Dec. 23, 2014 ... pilot study of mazindol in children with attention deficit/hyperactivity ... in December 2014 . The paper, ... with attention deficit/hyperactivity disorder" ( Konofal et al, ... 1;8:2321-2332. eCollection 2014 ) shows that mazindol might ...
(Date:12/22/2014)... 2014   Synthetic Biologics, Inc. ... therapies for serious infections and diseases, with ... announced positive topline safety and tolerability results ... SYN-004, the Company,s investigational oral beta-lactamase enzyme ... (C. difficile) infection, antibiotic-associated diarrhea and ...
(Date:12/22/2014)... 22, 2014  Alternative Energy & Environmental Solutions, ... signed a letter of intent to acquire BioTechPharma ... patented a nanotechnology-based development platform used to create ... rapid on-site collection and testing to identify infectious ... in an immediate, non-invasive and cost-effective manner. ...
(Date:12/22/2014)... MISSION VIEJO, Calif. , Dec. 22, 2014 /PRNewswire/ ... announce that CoPatient, an online medical bill review and ... newest offering in the FREE WellCard Savings discount health ... a medical bill that was more than they expected ... help members reduce health care costs, WellCard Savings is ...
Breaking Biology Technology:Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 2Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 4Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 5ALNE Announces Intention To Acquire BioTechPharma 2WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2
... transportation firms are still popular among IT professionals, according ... , ,The magazine released its 12th annual "100 Best ... American Family Insurance Group 30th in the ... year's study recognized companies that create meaningful work for ...
... FedEx/Kinkos needed to dispose of 1,100 used copier machines, it ... $200,000 to the company and a harder-to-calculate cost to ... recycle the machines by donating them to non-profit organizations. FedEx/Kinkos ... you ever wondered about what happened to Scott McCallum, Aidmatrix ...
... as businesses seek to protect and enhance the value ... result of the business' products and services. Each year, ... many of them for federal trademark registration. Indeed, applications ... good leading indicator of economic conditions (a steep drop ...
Cached Biology Technology:Two Wisconsin companies hold spots on Computerworld employee survey 2Internet charity link has a Wisconsin flavor in CEO Scott McCallum 2Internet charity link has a Wisconsin flavor in CEO Scott McCallum 3Why file for trademark protection? 2Why file for trademark protection? 3Why file for trademark protection? 4
A set of five proteins which can be used to calibrate a Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) or Electrospray Ionization (ESI) mass spectrometer....
... A number of modifications of Grace's ... the late 1960's and 1970's. Many of ... Hink for the growth of cells derived ... represents the modification known as TNM-FH. The ...
... GST•Tag™ Ek Adaptor encodes a T7 promoter, ... (rbs), ATG translation initation codon and an ... has been reported to enhance the production ... its fusion partners. The GST•Tag is a ...
...
Biology Products: