Featured Research

from universities, journals, and other organizations

Grizzlies And Salmon: Too Much Of A Good Thing?

Date:
August 9, 2005
Source:
American Chemical Society
Summary:
Even grizzly bears should watch what they eat. It turns out that grizzlies that gorge themselves on salmon during the summer spawning season have much higher levels of contaminants in their bodies than their cousins who rely more on berries, plants and insects. The research by Canadian scientists is reported in journal, Environmental Science & Technology.

Even grizzly bears should watch what they eat. It turns outthat grizzlies that gorge themselves on salmon during the summerspawning season have much higher levels of contaminants in their bodiesthan their cousins who rely more on berries, plants and insects,according to Peter Ross of Canada's Department of Fisheries and Oceans.

Related Articles


Reportingin an article to be published Sept. 15 in the American Chemical Societyjournal, Environmental Science & Technology, Canadian researcherssay the difference in the concentration of persistent organicpollutants (POPs) is “profound” between grizzly bears who eat lots ofsalmon and those that don’t. The measurements were made by examininghair and fat samples from two groups of grizzly bears in the BritishColumbia region of Canada. One group included bears that had a steadydiet of terrestrial foods, the other group included bears that shiftedto marine food when the salmon returned from the Pacific Ocean to spawn.

Althoughthe overall contaminant concentrations in the grizzlies are lower thanmany other species of animals that consume marine food, the researchers— from Canada’s Department of Fisheries and Oceans, the University ofVictoria and Raincoast Conversation Society — say the reproductivewindow of the bears could be vulnerable to health impacts.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "Grizzlies And Salmon: Too Much Of A Good Thing?." ScienceDaily. ScienceDaily, 9 August 2005. <www.sciencedaily.com/releases/2005/08/050809064930.htm>.
American Chemical Society. (2005, August 9). Grizzlies And Salmon: Too Much Of A Good Thing?. ScienceDaily. Retrieved March 29, 2015 from www.sciencedaily.com/releases/2005/08/050809064930.htm
American Chemical Society. "Grizzlies And Salmon: Too Much Of A Good Thing?." ScienceDaily. www.sciencedaily.com/releases/2005/08/050809064930.htm (accessed March 29, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, March 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Lioness Has Rare Five-Cub Litter

Raw: Lioness Has Rare Five-Cub Litter

AP (Mar. 27, 2015) — A lioness in Pakistan has given birth to five cubs, twice the usual size of a litter. Queen gave birth to two other cubs just nine months ago. (March 27) Video provided by AP
Powered by NewsLook.com
Jockey Motion Tracking Reveals Racing Prowess

Jockey Motion Tracking Reveals Racing Prowess

Reuters - Innovations Video Online (Mar. 26, 2015) — Using motion tracking technology, researchers from the Royal Veterinary College (RVC) are trying to establish an optimum horse riding style to train junior jockeys, as well as enhance safety, health and well-being of both racehorses and jockeys. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Bear Cubs Tumble for the Media

Bear Cubs Tumble for the Media

Reuters - Light News Video Online (Mar. 26, 2015) — Two Andean bear cubs are unveiled at the U.S. National Zoo in Washington, D.C. Alicia Powell reports. Video provided by Reuters
Powered by NewsLook.com
Botswana Talks to End Illegal Wildlife Trade

Botswana Talks to End Illegal Wildlife Trade

AFP (Mar. 25, 2015) — Experts are gathering in Botswana to try to end the illegal wildlife trade that is decimating populations of elephants, rhinos and other threatened species. Duration: 01:05 Video provided by AFP
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