Featured Research

from universities, journals, and other organizations

Ocean nutrients a key component of future change, say scientists

Date:
April 10, 2013
Source:
National Oceanography Centre
Summary:
Variations in nutrient availability in the world’s oceans could be a vital component of future environmental change, according to a new review paper.

Oceanographic sampling equipment is shown being lowered into clear blue open ocean water. The clarity of the water is a consequence of low nutrient availability restricting the amount of planktonic microbes. Credit: Elizabeth Sargent, NOCS
Credit: Elizabeth Sargent, NOCS

Variations in nutrient availability in the world's oceans could be a vital component of future environmental change, according to a multi-author review paper involving the National Oceanography Centre, Southampton (NOCS).

Related Articles


The paper, published this month in Nature Geoscience, reviews what we know about ocean nutrient patterns and interactions, and how they might be influenced by future climate change and other human-made factors. The authors also highlight how nutrient cycles influence climate by fuelling biological production, hence keeping carbon dioxide (CO2) locked down in the ocean away from the atmosphere.

Dr Mark Moore from University of Southampton Ocean and Earth Science, which is based at NOCS, led the review. He said: "We aimed to get a group of international experts together in an attempt to define the current state of knowledge in this rapidly developing field."

Marine algae, which support most marine ecosystems, need certain resources to grow and reproduce -- including nutrients. If there are not enough nutrients available, the growth or abundance of these microscopic plants can become restricted. This is known as 'nutrient limitation'.

"All organisms, from the smallest microbes, up to complex multi-cellular animals like us, require a variety of chemical elements to survive," explained Dr Moore. "Somehow we all have to get these elements from our external environment."

Nutrients are therefore a key driver of microbial activity in the oceans. But at the same time, microorganisms play a major role in cycling nutrients and carbon throughout the vast ocean system -- including drawing down CO2 from the atmosphere. Therefore understanding ocean nutrient cycling is important for predicting future environmental change.

Dr Moore said: "Despite many decades of research, we still don't understand some of the complex interactions between marine microorganisms and nutrient cycles.

"Human activity has the potential to profoundly impact oceanic nutrient cycles. A solid understanding of complex feedbacks in the system will be required if we are going to be able to predict the consequences of these changes."

The authors -- from 22 different institutes -- call for an interdisciplinary approach merging new analytical techniques, observations and models going forward to address current gaps in our understanding.

The review resulted from a workshop, hosted at NOCS, as part of the International Geosphere-Biosphere Programme/Scientific Committee on Oceanic Research (IGBP-SCOR) funded Fast Track Initiative on Upper Ocean Nutrient Limitation.


Story Source:

The above story is based on materials provided by National Oceanography Centre. Note: Materials may be edited for content and length.


Journal Reference:

  1. C. M. Moore, M. M. Mills, K. R. Arrigo, I. Berman-Frank, L. Bopp, P. W. Boyd, E. D. Galbraith, R. J. Geider, C. Guieu, S. L. Jaccard, T. D. Jickells, J. La Roche, T. M. Lenton, N. M. Mahowald, E. Marañón, I. Marinov, J. K. Moore, T. Nakatsuka, A. Oschlies, M. A. Saito, T. F. Thingstad, A. Tsuda, O. Ulloa. Processes and patterns of oceanic nutrient limitation. Nature Geoscience, 2013; DOI: 10.1038/NGEO1765

Cite This Page:

National Oceanography Centre. "Ocean nutrients a key component of future change, say scientists." ScienceDaily. ScienceDaily, 10 April 2013. <www.sciencedaily.com/releases/2013/04/130410082210.htm>.
National Oceanography Centre. (2013, April 10). Ocean nutrients a key component of future change, say scientists. ScienceDaily. Retrieved March 5, 2015 from www.sciencedaily.com/releases/2013/04/130410082210.htm
National Oceanography Centre. "Ocean nutrients a key component of future change, say scientists." ScienceDaily. www.sciencedaily.com/releases/2013/04/130410082210.htm (accessed March 5, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Thursday, March 5, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Keurig Co-Founder Says Company Has A Waste Problem

Keurig Co-Founder Says Company Has A Waste Problem

Newsy (Mar. 5, 2015) — Keurig co-founder John Sylvan told The Atlantic he doesn&apos;t even own a Keurig because they&apos;re too expensive and produce too much waste. Video provided by Newsy
Powered by NewsLook.com
Raw: Tourists Visit Rare Grey Whales in Mexico

Raw: Tourists Visit Rare Grey Whales in Mexico

AP (Mar. 4, 2015) — Once nearly extinct, grey whales now migrate in their thousands to Mexico&apos;s Vizcaino reserve in Baja California, in search of warmer waters to mate and give birth. Tourists flock to the reserve to see the whales, measuring up to 49 feet long. (March 4) Video provided by AP
Powered by NewsLook.com
Raw: Injured Miners Treated After Blast

Raw: Injured Miners Treated After Blast

AP (Mar. 4, 2015) — An explosion ripped through a coal mine before dawn Wednesday in war-torn eastern Ukraine, killing at least one miner, officials said. Graphic video of injured miners being treated in a Donetsk hospital. (March 4) Video provided by AP
Powered by NewsLook.com
Australian Museum Shares Terrifying Goblin Shark With the World

Australian Museum Shares Terrifying Goblin Shark With the World

Buzz60 (Mar. 4, 2015) — The Australian Museum has taken in its fourth-ever goblin shark, a rare fish with an electricity-sensing snout and &apos;alien-like&apos; jaw. Mike Janela (@mikejanela) takes a look. Video provided by Buzz60
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