Navigation Links
International team shows mercury concentrations in fish respond quickly to increased deposition
Date:9/22/2007

A joint Canadian-American research team have, for the first time, demonstrated that mercury concentrations in fish respond directly to changes in atmospheric deposition of the chemical. The international teams research began in 2001 at the Experimental Lakes in Northern Ontario and is featured in this weeks Proceedings of the National Academy of Sciences.

Up to now a direct link has been difficult to establish because of all the other factors that affect mercury levels in fish and large pools of mercury already in the environment, said lead author Reed Harris of Tetra Tech. By adding stable mercury isotopes to an entire ecosystem for several years, our team was able to zero in on the effects of changing atmospheric mercury deposition.

The results were very dramatic, said co-author Dr. Andrew Heyes of the University of Maryland Center for Environmental Science Chesapeake Biological Laboratory. Using the stable isotope approach has revealed a great deal about the cycling of mercury in watersheds. We look forward to continuing our study to provide guidance in mitigating the legacy left by the years of high mercury deposition.

To directly test the response of fish contamination to changing mercury deposition, researchers conducted a whole-ecosystem experiment, increasing the mercury load to a lake and its watershed by the addition of enriched stable mercury isotopes. The isotopes allowed the team to distinguish between experimentally applied mercury and mercury already present in the ecosystem and to examine bioaccumulation of mercury deposited to different parts of the watershed. Fish methylmercury concentrations responded rapidly to changes in mercury deposition over the first three years of study.

This is good news. It means that a reduction in new mercury loads to many lakes should result in lower mercury in fish within a few years, added Cynthia Gilmour of the Smithsonian Environmental Research Center and University of M
'/>"/>

Contact: Christopher Conner
cconner@umces.edu
443-496-0095
University of Maryland Center for Environmental Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. International trial of two microbicides begins
2. International HapMap consortium expands mapping effort
3. Solutions that reduce death of marine life reeled in by International Smart Gear Competition
4. Canadian youth 4th highest in international obesity study
5. International Team Determines Geographic Origin of Leprosy
6. Team of international scientists departs today to discover the unknown in Chinas Himalayan region
7. Tropical dry forests receive international recognition
8. Open Source Biotechnology alliance for international agriculture
9. International HIV/AIDS trial finds continuous antiretroviral therapy superior to episodic therapy
10. Five surprising facts about starvation that could change the international agenda
11. CHAVI announces international search for genes affecting HIV response
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/20/2015)... , May 20, 2015 /PRNewswire/ ... http://www.researchandmarkets.com/research/h8t4x6/5year ) has announced the addition ... the Global Iris Recognition Market"  report ... , ,This research service analyses trends ... the government and commercial sectors, globally. ...
(Date:5/19/2015)... , May 19, 2015 ... announced the addition of the  "Genetic Testing ... ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ,A recent report, ... in-depth analysis of the current and future ... gene-based tests, their working principles and types ...
(Date:5/11/2015)... 2015  Synaptics Incorporated (NASDAQ: SYNA ), ... announced the appointment of Wajid Ali ... reporting to Rick Bergman , President and ... Officer, Kathleen Bayless , who announced her ... Ali brings extensive financial management expertise to Synaptics, ...
Breaking Biology News(10 mins):Global Iris Recognition Market Report 2015 - 5-Year Opportunity Analysis 2Global Genetic Testing Market Outlook 2018 2Synaptics Appoints Wajid Ali as Senior Vice President and Chief Financial Officer 2
... As the name suggests, you can,t digest resistant starch so ... same form it entered your mouth. As unlovely as that ... important things, including decreasing bowel pH and transit time, and ... the growth of good bugs while keeping bad bugs at ...
... is well known that horses show symptoms of stress when ... effects on their riders. This is surprising, as equestrian ... their riders. How does the horse-rider team cope with ... The issue has now been studied by Mareike von Lewinski ...
... to the front burner with almost $1 million in federal ... led by Dr. Fugen Dou of Beaumont and ... South Carolina will look at yielding more high quality ... are funded by the U.S. Department of Agriculture. Organic ...
Cached Biology News:Study shows that diet of resistant starch helps the body resist colorectal cancer 2Horses don't have stage fright -- but their riders do 2Organic rice research moves to front burner in Texas 2
(Date:5/29/2015)... 2015 Delcath Systems, Inc. (NASDAQ: ... company focused on oncology with an emphasis on ... announces that results of a large, European single-center ... with hepatic metastases with the Delcath Hepatic CHEMOSAT ... on-line abstract at the American Society of Clinical ...
(Date:5/29/2015)... Texas , May 29, 2015  Caris ... from two studies in which researchers utilized Caris ... service, to identify potential therapeutic targets in patients ... expression of the programmed cell death protein 1 ... on June 1 at the 2015 American Society ...
(Date:5/29/2015)... , May 28, 2015 Research ... addition of Jain PharmaBiotech,s new report "Cytogenetics ... offering. This report deals with cytogenetics ... use mainly to describe the chromosome structure and ... of molecular biology, it is also referred to ...
(Date:5/29/2015)... Results from a Phase III clinical trial ... to reduce the size of melanoma tumors in patients ... Journal of Clinical Oncology. , The global, randomized ... IV melanoma, a potentially fatal form of skin cancer. ... the safety and efficacy of the oncolytic virus immunotherapy ...
Breaking Biology Technology:Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 2Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 3Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 4Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 5Multi-Platform Molecular Profiling from Caris Life Sciences Identifies Clinically Actionable Targets for Novel Immunotherapy Drugs 2Multi-Platform Molecular Profiling from Caris Life Sciences Identifies Clinically Actionable Targets for Novel Immunotherapy Drugs 3Multi-Platform Molecular Profiling from Caris Life Sciences Identifies Clinically Actionable Targets for Novel Immunotherapy Drugs 4Global Cytogenetics Market Report 2015-2024 - Technologies, Markets and Companies 2Global Cytogenetics Market Report 2015-2024 - Technologies, Markets and Companies 3Study Published in Journal of Clinical Oncology Reports Talimogene Laherparepvec Improvesdurable Responses in Patients with Advanced Melanoma 2
... Proposed acquisition to augment Quintiles Consulting offerings, ... Quintiles,Transnational Corp. today announced that it ... privately held decision-analytics and market research,consulting firm ... expanding Quintiles,Consulting business., The acquisition of ...
... Hunter College offers women the gift of health this Mother,s ... a woman in the,United States is diagnosed with breast cancer(1). ... with breast cancer annually and nearly,1,200 die from the disease(2). ... 40, more than half of U.S. women of screening age ...
... May 7 The Annual,General Meeting of Arpida Ltd ... by the Board of Directors., A total of ... place,in Basel today. 6,186,266 shares were represented, or 29.3% ... following items were on the agenda., 1. Approval ...
Cached Biology Technology:Quintiles Signs Agreement to Acquire Eidetics 2Fujifilm and the National Breast Cancer Foundation Provide Free Mammograms as Part of Images of Health Campaign 2Fujifilm and the National Breast Cancer Foundation Provide Free Mammograms as Part of Images of Health Campaign 3Fujifilm and the National Breast Cancer Foundation Provide Free Mammograms as Part of Images of Health Campaign 4Arpida Annual General Meeting of Shareholders Approves All Board Proposals 2
... computing power of your ValveBank system! ... with a Macintosh computer using graphic 'click-and-drag' ... disk, print out program listings, then download ... one simple step., EasyCode is used for ...
The Holten Safe 2010 Class II Biological Safety Cabinets provide the most ergonomical working condition of comfort while incorporating the latest technology for safety, efficiency and performance....
... The Jouan MSC series of Class ... working conditions and certification to the ... regulation ensures that the cabinets cannot ... conditions. Natural lighting, low noise and ...
... Fluoroskan Ascent is a ... flexibility for all kinds of ... research and for clinical applications. ... biology are all important application ...
Biology Products: