Navigation Links
New study shows extent of harmful human influences on global ecosystems
Date:2/14/2008

More than 40 percent of the worlds oceans are heavily impacted by human activities, including overfishing and pollution, according to a new study that will appear in tomorrows peer-reviewed journal Science.

Dr. Kenneth Casey, with NOAAs National Oceanographic Data Center in Silver Spring, Md., and co-author of the study A Global Map of Human Impact on Marine Ecosystems, joined a team of researchers that combined 17 data sets of different human activities from fishing and fertilizer run-off, to commercial shipping and pollution and analyzed their effects on marine ecosystems, continental shelves and the deep ocean.

The results, highlighted on a map available on NOAA.gov, revealed the most heavily affected waters include the East Coast of North America, North Sea, South and East China Seas, Caribbean Sea, Mediterranean Sea, Red Sea, Persian Gulf, Bering Sea and areas off the western Pacific Ocean. Least affected areas are near the poles.

Casey said three measures of human-induced climate change were examined by the research team, including changes in sea surface temperatures, UV radiation, and ocean acidification. These measures were found to be among the most important factors in determining the global impacts.

The extent of human influence was probably more than any of us expected, said Casey, explaining that red areas on the map indicate the most heavily impacted regions. He added the study and map designed to visually highlight the trouble spots in the oceans are tools for the worlds decision-makers to assess the real impact of human activities on marine ecosystems and help identify ways to lessen the threats.

According to the study, the ecosystems most at threat are: coral reefs, which house more than 25 percent of all marine life and protect against wave erosion; seagrass beds, which are nursery grounds for young fish and mangroves, which grow in coastal habitats and also help ward off erosion.

This project allows us to finally start seeing the big picture of how humans are affecting the oceans, said the studys lead author, Dr. Ben Halpern of the National Center for Ecological Analysis and Synthesis at the University of California Santa Barbara.

NOAAs Coral Reef Conservation Program and National Oceanographic Data Center worked with the University of North Carolina in Chapel Hill to contribute data on changes in extreme sea surface temperature anomalies to the project.

Casey said the study established the framework for routinely assessing the state of marine ecosystems in the future. As we compile more and better data, they can be fed back into the study to see where things stand.


'/>"/>

Contact: John Leslie
john.leslie@noaa.gov
301-713-2087
NOAA Headquarters
Source:Eurekalert

Related medicine news :

1. Penn study finds pro-death proteins required to regulate healthy immune function
2. New study shows promise in reducing surgical risks associated with surgical bleeding
3. Study, meta-analysis examine factors associated with death from heatstroke
4. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
5. Study says COPD testing is not measuring up
6. Preclinical study suggests organ-transplant drug may aid in lupus fight
7. Ability to cope with stress can increase good cholesterol in older white men, study finds
8. High alcohol consumption increases stroke risk, Tulane study says
9. Mailman School of Public Health study examines link between racial discrimination and substance use
10. Pitt study finds inequality in tobacco advertising
11. Stanford study highlights cost-effective method of lowering heart disease risks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, was ... his family verbally and physically. , “When something upset him, he couldn’t control his emotions,” ... He would throw rocks at my other children and say he was going to kill ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. announced that ... chosen by their peers for this recognition are considered among the top 2 percent ... special honors as members of this year’s Legal Elite Hall of Fame: Miami ...
(Date:6/24/2016)... ... June 24, 2016 , ... Comfort Keepers® of San Diego, CA is ... Road To Recovery® program to drive cancer patients to and from their cancer treatments. ... the highest quality of life and ongoing independence. Getting to and from medical ...
(Date:6/24/2016)... Plano, TX (PRWEB) , ... June 24, 2016 , ... ... taking part in Genome magazine’s Code Talker Award, an essay contest in which patients ... for an award to be presented at the 2016 National Society of Genetic Counselors ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... Living, is proud to recognize Dr. Barry M. Weintraub as a prominent plastic ... most beautiful women in the world, and the most handsome men, look naturally ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 23, 2016 The vast majority of dialysis ... facility.  Treatments are usually 3 times a week, with ... including travel time, equipment preparation and wait time.  This ... grueling for patients who are elderly and frail.  Many ... and rehabilitation centers for some duration of time. ...
(Date:6/23/2016)... Tenn. , June 23, 2016 /PRNewswire/ ... automating, integrating and transforming the patient payment ... of several innovative new products and services ... of its revenue cycle offerings. These award-winning ... more efficient workflows, remain compliant in an ...
(Date:6/23/2016)... , June 23, 2016  The National ... has joined the health policy research organization as ... Romano , MD, senior vice president and chief ... company,s representative on the NPC Board of Directors. ... pleased that Mallinckrodt has joined us in support ...
Breaking Medicine Technology: