HOME >> BIOLOGY >> NEWS
El Niño's dramatic impact on ocean biology and carbon dioxide captured by unique monitoring system

nographer Francisco Chavez, lead author of the new study.

It was the mooring measurements and SeaWiFS data that revealed surprisingly low and high levels of chlorophyll, coinciding with El Niño's strongest phase and the transition to La Niña cooling. When the warm-water layer produced by El Niño extended to its greatest depths and the upwelling of nutrients necessary for phytoplankton growth virtually ceased, chlorophyll values plummeted. Phytoplankton (microscopic algae) form the base of the oceanic food chain.

The researchers were again surprised in mid-1998 when chlorophyll levels skyrocketed, revealing the largest ever observed phytoplankton bloom, in area, for the equatorial Pacific. In their published results, the researchers suggest that elevated iron concentrations stimulated this intense bloom, a result of the increased upwelling associated with La Niña. Iron, an essential nutrient for phytoplankton growth, is thought to be the limiting nutrient for productivity in the equatorial Pacific under normal conditions.

El Niño can also be credited with drastically cutting the amount of carbon dioxide that this ocean region normally adds to the atmosphere. Unlike most parts of the world's oceans, the equatorial Pacific is a major contributor of atmospheric carbon dioxide because of the carbon-dioxide-rich deep ocean waters brought to the surface here and the relatively low levels of biological activity. The researchers calculate that 700 million metric tons of carbon normally released to the atmosphere as carbon dioxide were kept in the ocean during the year that El Niño conditions dominated the equatorial Pacific. This is equivalent to half of the United States' total annual carbon dioxide emissions from fossil fuel burning.


'"/>

Contact: Debbie Meyer
debbie@mbari.org
831-775-1807
Monterey Bay Aquarium Research Institute
8-Dec-1999


Page: 1 2

Related biology news :

1. Genetic discovery could dramatically reduce need for liver transplants in children
2. Combination therapy dramatically improves function after spinal cord injury in rats
3. Scientists develop new cloning technique that dramatically shortens the search for genes
4. Mastectomy dramatically reduces breast cancer risk among women with BRCA1/2 mutations
5. U.S. commission makes dramatic recommendations for ocean health
6. Endangered sea turtles make a dramatic turnaround
7. 50 Arctic lakes show dramatic effects of climate warming
8. New poll shows dramatic rise in Americans DNA I.Q.
9. UCLA scientists discover hormone may spur dramatic weight loss
10. US ecology dramatically altered by fertilizers and acid rain
11. New report documents dramatic decline in beluga sturgeon in the Caspian Sea

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/10/2019)... ... October 09, 2019 , ... Calcium & Bone Health Institute ... in Vancouver, Canada on September 23-24 for two days. The purpose of symposium ... healthy bone and to prevent calcium-related diseases. The theme of this year was ...
(Date:10/8/2019)... ... October 08, 2019 , ... ... National Research Council of Canada (NRC) to create the Laboratory of Industrial ... and in manufacturing, LIFT will offer a competitive capacity to accelerate the ...
(Date:10/8/2019)... ... October 07, 2019 , ... ... of imaging modalities such as optical projection tomography, optical coherence tomography, echocardiogram, light ... to generate these data sets inhouse, a lot of research groups struggle with ...
Breaking Biology News(10 mins):
(Date:10/3/2019)... ... 2019 , ... Cheyenne is a beautiful and strong Quarter Horse and a ... Rebel’s Run , which offers riding lessons and trail riding in Afton, Virginia. ... Mimi describes her as her “go to horse.” Thus, you can imagine ...
(Date:10/3/2019)... BOSTON (PRWEB) , ... October 03, 2019 , ... Yesterday, ... 2-3, Asymmetrex founder and director, James L. Sherley, M.D., Ph.D., discussed important ... To an attendee audience including both developers and suppliers of clinical trials, in ...
(Date:9/24/2019)... ... September 24, 2019 , ... Personalized ... training and site qualification for clinical trial sites and physician investigators. The ... potential clinical trial participants. , Clinical trial sites are currently located in San ...
(Date:9/17/2019)... , ... September 17, 2019 , ... Tucker, a Labrador ... only four months old, Tucker was limping and lame on his right hip and ... dysplasia and it was called “the worst case the vet had seen.” He was ...
Breaking Biology Technology:
Cached News: