marine dead zone to present

Submitted by sybil.bory on Tue, 07/17/2012 - 10:41

THE FOLLOWING MAP SHOWS HOW MARINE DEAD ZONES ARE GLOBALLY DISTRIBUTED. MOREOVER, THE BAR CHART SHOWS THE DRAMATICALLY INCREASING NUMBER OF DEAD ZONES FROM THE BEGINNING OF THE PAST CENTURY TO THE PRESENT DAYS.

AS YOU CAN SEE, THE LARGEST AMOUNT OF DEAD ZONES IS CONCENTRATED AROUND INDUSTRIAL AND RICH COUNTRIES SUCH AS THE USA, EUROPE AND JAPAN WHERE POLLUTION LEVELS ARE VERY HIGH AND FISHING IS BROUGHT TO AN EXCESSIVE EXTENT.

Level
Image Type

Marine ecosystem loss

Submitted by sybil.bory on Tue, 07/17/2012 - 10:36

On this picture you can see the marine ecosystem loss with on the left the key ecosystem services and on the right the major loss mechanisms. On the right you have dredging and boating effects. Coastal salinity chenges beacause of altered water flow for irrigation. THE POLLUTION DISCHARGED INTO THE SEA BY DIVERSE HUMAN ACTIVITIES CAUSES EUTROPHICATION WHICH REDUCES THE LIGHT AND THE OXYGEN IN THE WATER. ALL THOSE ASPECTS PLAY AN IMPORTANT AND CRITICAL ROLE  IN DAMAGING MARINE ECOSYSTEMS.

Category
Level
Image Type
Subscribe to Global