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:9/16/2014)... began on September 13, 2014. The fire is human-caused ... over 2,300 acres in size and is mostly being ... was calm Monday night due to higher humidity. ... and beginning to construct a fireline on the West and ... working on the fire: , 7 20-person Crews, 4 Hot ...
(Date:9/16/2014)... 10-km diameter chunk of rock hit the Yukatan peninsula near ... force of 100 teratons of TNT. It left a crater ... global earthquakes and volcanism are widely accepted to have wiped ... the mammals. But what happened to the plants on which ... from the University of Arizona reveals that the meteorite impact ...
(Date:9/16/2014)... week, its Government could face an uphill challenge in ... has revealed. , The University of Nottingham Shale Gas ... extraction in the UK since March 2012 and has ... the least supportive of fracking. , Professor Sarah O,Hara, ... Geography, said: "The clear move against shale gas extraction ...
Breaking Biology News(10 mins):Meteorite that doomed the dinosaurs helped the forests bloom 2Meteorite that doomed the dinosaurs helped the forests bloom 3Scottish people most sceptical on fracking, survey shows 2Scottish people most sceptical on fracking, survey shows 3
... study shows that personal values that people refuse to disavow, ... in the brain than those values that are willingly sold. ... whether it,s a strong religious belief, a national identity ... process," says Gregory Berns, director of the Center for Neuropolicy ...
... Doctors and researchers of Hospital del Mar and ... describing a new pharmacological resistance to cancer. This new ... (epidermal growth factor receptor) causing resistance to treatment using ... attacks the EGFR. The study proves that, both ...
... RIKEN SPring-8 Center in Harima, Japan have clarified the ... a bacterial enzyme that offers clues on the origins ... importance to fundamental science, the findings provide key insights ... greenhouse gas hundreds of times more potent than carbon ...
Cached Biology News:The price of your soul: How the brain decides whether to 'sell out' 2The price of your soul: How the brain decides whether to 'sell out' 3Identified a cause of resistance to colon cancer treatment 2New study sheds light on evolutionary origin of oxygen-based cellular respiration 2
(Date:9/17/2014)... SAN FRANCISCO, Calif. , Sept. 17, 2014 /PRNewswire/ ... ), a molecular diagnostics company pioneering the field of ... Hall to chief operating officer. Mr. Hall ... spearhead the company,s commercial entry into endocrinology. Since 2012, ... operations, as well as managed care and billing functions. ...
(Date:9/17/2014)... California , 17 de septiembre de ... ("la compañía"), principal proveedor mundial de soluciones ... las ciencias de la vida, anunció hoy ... de logística global con sede en Rótterdam, ... base de clientes Europa en rápido crecimiento. ...
(Date:9/17/2014)... Los Angeles, CA (PRWEB) September 17, 2014 ... GPS microchip for pets which will alert owners if their ... location using GPS from an implanted microchip in the pet’s body. ... implantable microchips for pets have been around for many ... GPS, and are not able to track a pet’s location or ...
(Date:9/17/2014)... MESSENGER has just celebrated its 10 year anniversary in ... of its latch valves, V27200-818, operating onboard this spacecraft. ... the planet Mercury. It is only the second spacecraft ... vast amount of information and images of the planet. ... that also include permanent magnets to maintain the valve ...
Breaking Biology Technology:Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 2Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 3Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 4Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 2Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 3Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 4Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 5Implantable Microchip for Pets with GPS Tracking - Patent Filed by Escape Alert, LLC. 2Implantable Microchip for Pets with GPS Tracking - Patent Filed by Escape Alert, LLC. 3
... Salk Institute is pleased to announce the appointment of ... Salk Institute Office of Technology Development. His appointment begins ... experience in academic technology transfer.  For over a decade ... Patent Foundation, where he led a broad expansion and ...
... Volcano Corporation (Nasdaq: VOLC ), a leading ... to enhance the diagnosis and treatment of coronary and ... to market the Eagle Eye® Platinum digital IVUS catheter ... 20th PCI Live Demonstration Course in Kurashiki, which starts ...
... 2011 Healthzone Limited (ASX: HZL; OTCQX: HLTZY) announced ... The Trout Group LLC ("the Trout Group"), a leading ... Trout Group will provide investor relations services for Healthzone ... With more than 60 current clients, the Trout Group ...
Cached Biology Technology:Salk Welcomes National Leader in Academic Technology Transfer 2Volcano Announces the Introduction of the Eagle Eye® Platinum Digital IVUS Catheter at the 20th PCI Live Demonstration Course in Kurashiki 2Volcano Announces the Introduction of the Eagle Eye® Platinum Digital IVUS Catheter at the 20th PCI Live Demonstration Course in Kurashiki 3Healthzone Limited Engages The Trout Group for Investor Relations Services 2
... Immunogen: Fusion protein derived from human ... (atypical PKC isotype-specific interacting protein/ partitioning ... related to the protease-activated-receptors also called ... (positive controls: Caco-2 MDCK A6 cell ...
For use with SSP products or any application requiring agarose gel separation • Multiple formats available to meet various throughput needs • Includes replacement parts for each un...
Request Info...
Human RUNX2/CBFA1 MAb (Clone 232902)...
Biology Products: