Featured Research

from universities, journals, and other organizations

Polar bears, glaucous gulls most at risk from contaminants

Date:
August 10, 2010
Source:
The Norwegian University of Science and Technology (NTNU)
Summary:
Although animals throughout the Arctic are exposed to an alphabet soup of pollutants and contaminants that are carried north from industrialized countries, only polar bears in East Greenland and Svalbard and glaucous gulls in Svalbard appear to be showing any deleterious effects, according to a new report.

Polar bears in Svalbard and East Greenland are most at risk from the effects of contaminants such as PCBs and DDT, which are found in the Arctic.
Credit: Photo courtesy of the USGS NBII

Although animals throughout the Arctic are exposed to an alphabet soup of pollutants and contaminants that are carried north from industrialized countries, only polar bears in East Greenland and Svalbard and glaucous gulls in Svalbard appear to be showing any deleterious effects, according to a new report co-authored by a researcher from the Norwegian University of Science and Technology.

Related Articles


The summary, which is part of a comprehensive effort called the Arctic Monitoring and Assessment Programme (AMAP), was published in a recent special issue of Science of the Total Environment. Bj๘rn Munro Jenssen, a professor of biology at NTNU, was one of the authors of the summary, which reports in part on his work with polar bears on Svalbard.

While researchers could not document strong evidence that contaminants such as PCBs and DDT were adversely affecting animals throughout the Arctic, other factors, such as the impact of climate change, disease and the invasion of new species will affect the overall exposure that each animal has to pollutants. Climate change, in particular, will affect sea ice distribution and temperatures. This will in turn cause food web changes and changes in nutrition, which led the researchers to list animals at the highest risk from contaminant exposure.

The Arctic wildlife and fish considered to be most at risk are: Polar bears in East Greenland, Svalbard and Hudson Bay, killer whales in Alaska and northern Norway, several species of gulls and other seabirds from the Svalbard area, northern Norway, East Greenland, the Kara Sea, and the Canadian central high Arctic, ringed seals from East Greenland, and a few populations of Arctic char and Greenland shark.


Story Source:

The above story is based on materials provided by The Norwegian University of Science and Technology (NTNU). Note: Materials may be edited for content and length.


Journal Reference:

  1. Robert J. Letcher, Jan Ove Bustnes, Rune Dietz, Bj๘rn M. Jenssen, Even H. J๘rgensen, Christian Sonne, Jonathan Verreault, Mathilakath M. Vijayan, Geir W. Gabrielsen. Exposure and effects assessment of persistent organohalogen contaminants in arctic wildlife and fish%u2606. Science of The Total Environment, 2010; 408 (15): 2995 DOI: 10.1016/j.scitotenv.2009.10.038

Cite This Page:

The Norwegian University of Science and Technology (NTNU). "Polar bears, glaucous gulls most at risk from contaminants." ScienceDaily. ScienceDaily, 10 August 2010. <www.sciencedaily.com/releases/2010/08/100809133241.htm>.
The Norwegian University of Science and Technology (NTNU). (2010, August 10). Polar bears, glaucous gulls most at risk from contaminants. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2010/08/100809133241.htm
The Norwegian University of Science and Technology (NTNU). "Polar bears, glaucous gulls most at risk from contaminants." ScienceDaily. www.sciencedaily.com/releases/2010/08/100809133241.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Earth & Climate News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Lava on Track to Hit Hawaii Market

Raw: Lava on Track to Hit Hawaii Market

AP (Dec. 19, 2014) — Lava from an active volcano on Hawaii's Big Island slowed slightly but stayed on track to hit a shopping center in the small town of Pahoa. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) — A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. Video provided by Newsy
Powered by NewsLook.com
Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) — The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Arctic Warming Twice As Fast As Rest Of Planet

Arctic Warming Twice As Fast As Rest Of Planet

Newsy (Dec. 18, 2014) — The Arctic is warming twice as fast as the rest of the planet, thanks in part to something called feedback. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins