HOME >> BIOLOGY >> NEWS
Antarctic icebergs -- Hotspots of ocean life

Global climate change is causing Antarctic ice shelves to shrink and split apart, yielding thousands of free-drifting icebergs in the nearby Weddell Sea. According to a new study in this weeks journal Science these floating islands of ice some as large as a dozen miles across are having a major impact on the ecology of the ocean around them, serving as hotspots for ocean life, with thriving communities of seabirds above and a web of phytoplankton, krill, and fish below.

The icebergs hold trapped terrestrial material, which they release far out at sea as they melt. The researchers discovered that this process produces a halo effect with significantly increased phytoplankton, krill and seabirds out to a radius of more than two miles around the icebergs. They may also play a surprising role in global climate change.

One important consequence of the increased biological productivity is that free-floating icebergs can serve as a route for carbon dioxide drawdown and sequestration of particulate carbon as it sinks into the deep sea, said oceanographer Ken Smith of the Monterey Bay Aquarium Research Institute (MBARI), first author and principal investigator for the research.

While the melting of Antarctic ice shelves is contributing to rising sea levels and other climate change dynamics in complex ways, this additional role of removing carbon from the atmosphere may have implications for global climate models that need to be further studied, added Smith.

To understand the icebergs complex impacts, the multidisciplinary team of researchers carried out the most comprehensive study ever done of individual icebergs and their immediate environment, taking a wide array of measurements physical, biological and chemical, and using satellite images provided by NASA.

At the same time, the wealth of data brought new challenges in how to manage this avalanche of information. The whole is definitely greater than the sum of th
'"/>

Contact: Paul Tooby
ptooby@sdsc.edu
858-822-3654
University of California - San Diego
21-Jun-2007


Page: 1 2 3

Related biology news :

1. Limpets reveal possible fate of cold-blooded Antarctic animals
2. Study of underground lakes in Antarctica could be critical, prof says
3. Antarctic lake experts to gather June 6, 7 in Montana
4. Scientists discover new life in the Antarctic deep sea
5. Antarctic marine explorers reveal first biological changes after collapse of polar ice shelves
6. West Antarcticas subglacial plumbing system mapped from space
7. Antarctic warming to reduce animals at base of ecosystem, shift some penguin populations southward
8. UTSA researchers examine effects of global warming on Antarctic
9. Female Antarctic seals give cold shoulder to local males
10. Wanderlust -- deep-sea fauna under Antarctic ice shelf
11. ROV discovers Antarctic seafloor fauna

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


(Date:6/23/2020)... FREDERICK, Md. (PRWEB) , ... ... ... a leading provider of gene-to-protein and monoclonal antibody development services, today announced ... of protein-based products and services to the pharmaceutical, diagnostics, and research industries. ...
(Date:6/23/2020)... (PRWEB) , ... June 23, 2020 , ... ... instrumentation, is pleased to announce the next event in a series of TOPIQ ... , The TOPIQ series of webinars was developed in response to social distancing ...
(Date:6/19/2020)... (PRWEB) , ... June 18, ... ... three-part webinar series, “Automate Your Lab with Software for Data Decisions,” for ... will learn how to integrate and automate cutting-edge scientific instruments and laboratory ...
Breaking Biology News(10 mins):
(Date:7/18/2020)... ... July 17, 2020 , ... ... the life sciences and food industries, is pleased to announce that Charles Galea ... – Business Development. , Charles is an accomplished and results-driven sales executive with ...
(Date:7/10/2020)... ... July 09, 2020 , ... In most research ... to suppress pigment formation in zebrafish embryos, maintaining optical transparency to facilitate microscopic ... MA has been using the zebrafish model to investigate the causes of leukaemia ...
(Date:7/7/2020)... ... July 06, 2020 , ... Bio-IT World has ... Lilly, Bristol-Myers Squibb, the University of Chicago, Massachusetts General Hospital, Mission: Cure, and ... elite awards program, highlighting outstanding examples of how technology innovations and strategic initiatives ...
(Date:7/1/2020)... ... June 30, 2020 , ... ... insights, today announced that the launch of a new clinical diagnostics ... about the tumor microenvironment (TME). , “Flagship’s TissueInsight is a service that ...
Breaking Biology Technology:
Cached News: