Navigation Links
Coastal birds carry toxic ocean metals inland
Date:5/25/2010

A collaborative research team led by Queen's University biologists has found that potent metals like mercury and lead, ingested by Arctic seabirds feeding in the ocean, end up in the sediment of polar ponds.

"Birds feeding on different diets will funnel different 'cocktails' of metal contaminants from the ocean back to terrestrial ecosystems, which can then affect other living organisms," says lead author Neal Michelutti, a research scientist at Queen's Paleoecological Environmental Assessment and Research Lab (PEARL).

The study will be published on-line the week of May 24 in the Proceedings of the National Academy of Sciences USA.

The team collected sediment cores from two ponds on a small island in the Canadian Arctic that is home to the nests of two kinds of seabirds: Arctic terns, which feed primarily on fish, and common eider ducks which feed mainly on mollusks. The researchers analyzed the pond sediment for metals and other indicators of the birds' activity.

They found significant differences between the samples that aligned with the birds' diets. There were higher concentrations of metals such as mercury and cadmium in the sites inhabited by terns, while the nearby eider site recorded higher amounts of lead, manganese, and aluminum. The patterns of metals in the sediment cores matched those recorded in the different bird species' tissues.

Queen's biology professor John Smol says the findings can be applied to other locations. "The High Arctic is an excellent 'natural laboratory' to undertake such studies, due to the lack of local industries," notes Dr. Smol, Canada Research Chair in Environmental Change, and winner of the 2004 NSERC Herzberg Gold Medal as Canada's top scientist. "However, the presence of seabirds on every continent suggests similar processes are operating along coastlines worldwide.

"Our concern is that these areas of elevated metals and other contaminants occur exactly w
'/>"/>

Contact: Nancy Dorrance
nancy.dorrance@queensu.ca
613-533-2869
Queen's University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Low oxygen in coastal waters impairs fish reproduction
2. Acid rain has a disproportionate impact on coastal waters
3. Springer will publish Journal of Coastal Conservation
4. Abel to receive posthumous Ocean and Coastal Leadership award
5. Resilience concepts poised to aid management of coastal marine ecosystems
6. Generalist bacteria discovered in coastal waters may be more flexible than known before
7. Bad news for coastal ocean: less fish out, means more nitrogen in
8. River plants may play major role in health of ocean coastal waters
9. Scientists show that streams are critical to preservation of oceanic coastal zones
10. Small streams mitigate human influence on coastal ecosystems
11. NOAA reports coastal waters show decline in contaminants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Coastal birds carry toxic ocean metals inland
(Date:7/22/2014)... disease causing agents, some viruses can perform crucial ... the world we live in today, according to ... Microbiology. , "Viruses participate in essential Earth processes ... from contributing to biogeochemical cycles, shaping the atmospheric ... Roossinck of Pennsylvania State University, a member of ...
(Date:7/22/2014)... some point, most kids will hear that drinking milk helps make ... But do these messages foster the idea that if something is ... new study in the Journal of Consumer Research , when ... to eat it. , "We predicted that when food is presented ... achieve a goal such as learning how to read or count, ...
(Date:7/22/2014)... Buccola, MSN, APRN, PMHCNS-BC, CNE, Assistant Professor of ... Orleans School of Nursing, contributed samples used in ... associated with schizophrenia and also suggesting a possible ... study, Biological insights from 108 schizophrenia-associated genetic loci, ... Nature , available at http://www.nature.com/nature/journal/vaop/ncurrent/full/nature13595.html., ...
Breaking Biology News(10 mins):Report on viruses looks beyond disease 2LSUHSC contributes to work identifying new DNA regions associated with schizophrenia 2
... function of patients with heart failure have provided new ... of dying suddenly from their disease, according to researchers ... electrical stimulation to the heart, these CRT-D (cardiac resynchronization ... view of subtle changes in a key measurement of ...
... therapy in two separate studies to renew brain cells ... a drug-induced form of Parkinson's disease. , The research, ... Journal of Neuroscience, essentially describes one strategy to halt ... treat the devastating side effects that occur when treating ...
... workshop in Tunisia, supported by the European Commission, ... improving health in countries bordering the Mediterranean Sea. ... of Euro-Mediterranean partnerships in order to capitalise on ... following the mapping of the human genome ?offer ...
Cached Biology News:Implanted Devices Detect High-Risk Heart Failure Patients 2Implanted Devices Detect High-Risk Heart Failure Patients 3Gene therapy for Parkinson's disease moves forward in animals 2Gene therapy for Parkinson's disease moves forward in animals 3Gene therapy for Parkinson's disease moves forward in animals 4Measuring the impact of post-genomics on Mediterranean populations 2
(Date:7/22/2014)... Massachusetts og SHENZHEN ... Tech Solutions Co., LTD, (BGI Tech), et datterselskab ... lancering af en ny human whole exome-sekvenseringstjeneste baseret ... Complete Genomics, højt anset i branchen for at ... højfølsom registrering af alle typer varianter, blev købt ...
(Date:7/22/2014)... July 22, 2014 In chemical ... an increasingly common sight. The rapid rise of ... now well- established as a core gas measurement ... has made them the gas analyzer technology of ... conditions encountered in some processes have limited their ...
(Date:7/22/2014)... July 22, 2014 Holomic is ... the debut of its fluorescent immunoassay reader, the ... (AACC) meeting in Chicago, July 28-31, 2014. Available ... versions, the HRDR-300 is a highly sensitive, low-cost ... analyze fluorescent lateral flow immunoassays with high sensitivity ...
(Date:7/21/2014)... 21, 2014 Lawrence Livermore ... Board (WIB) and Las Positas College (LPC) recently ... education and hands-on training for veterans, officials recently ... at Las Positas is designed to help ... engineering technician careers, and establishes a pipeline of ...
Breaking Biology Technology:BGI Tech lancerer Human Whole Exome-sekvenseringstjeneste på Complete Genomics avancerede platform 2METTLER TOLEDO Shows How Tunable Diode Lasers (TDLs) Can Be Installed Where No TDLs Have Gone Before 2Holomic to Debut HRDR-300 Fluorescent Immunoassay Reader at the AACC 2014 2Engineering Program Established for Veterans 2Engineering Program Established for Veterans 3
... Md., Oct 30 Novavax, Inc. (Nasdaq: NVAX ) ... financial results in a press release to be issued after ... Company will hold an investor conference call to discuss its ... 6, 2009. The call will be hosted by Novavax President ...
... ... Trusted LASIK Surgeons directory service and website at www.TrustedLASIKSurgeons.com in ... and find a highly qualified eye surgeon who can help improve their ... directory apart is a unique screening process ensuring that only those who ...
... the havoc wrought when freezing rain collects on roads, power ... A University of Pittsburgh-led team demonstrates in the Nov. 3 ... the lab of Di Gao, a chemical and petroleum engineering ... buildup of ice on solid surfaces and can be easily ...
Cached Biology Technology:Novavax Announces Release Date of 2009 Third Quarter Financial Results and Investor Conference Call 2Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 2Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 3Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 4Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 5Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 6Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 7Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 8Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 9Leading LASIK Laser Eye Cataract Surgery Experts of Baylor Vision in Houston Join Trusted LASIK Surgeons Directory 10Pitt-led researchers create nanoparticle coating to prevent freezing rain buildup 2
Human plasmacytoid dendritic cells, BDCA-4+, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Dendritic Cells and EPCs...
Umbilical cord blood CD19+ B cells, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Monocytes, B Cells and NK Cells...
Umbilical cord blood CD4+ T cells, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood MNCs and T Cells...
Human peripheral blood CD56+ NK cells, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Monocytes, B Cells, NK Cells and Stem Cells...
Biology Products: