Navigation Links
First evidence of ocean acidification affecting live marine creatures in the Southern Ocean
Date:11/26/2012

The shells of marine snails known as pteropods living in the seas around Antarctica are being dissolved by ocean acidification according to a new study published this week in the journal Nature Geoscience. These tiny animals are a valuable food source for fish and birds and play an important role in the oceanic carbon cycle*.

During a science cruise in 2008, researchers from British Antarctic Survey (BAS) and the University of East Anglia (UEA), in collaboration with colleagues from the US Woods Hole Oceanographic Institution and the National Oceanic and Atmospheric Administration (NOAA), discovered severe dissolution of the shells of living pteropods in Southern Ocean waters.

The team examined an area of upwelling, where winds cause cold water to be pushed upwards from the deep to the surface of the ocean. Upwelled water is usually more corrosive to a particular type of calcium carbonate (aragonite) that pteropods use to build their shells. The team found that as a result of the additional influence of ocean acidification, this corrosive water severely dissolved the shells of pteropods.

Ocean acidification is caused by the uptake of carbon dioxide from the atmosphere emitted as a result of fossil fuel burning. A number of laboratory experiments have demonstrated the potential effect of ocean acidification on marine organisms. However, to date, there has been little evidence of such impacts occurring to live specimens in their natural environment. The finding supports predictions that the impact of ocean acidification on marine ecosystems and food webs may be significant.

Lead author, Dr Nina Bednarek, formerly of BAS and UEA, and now of the National Oceanic and Atmospheric Administration (NOAA) says:

"We know that the seawater becomes more corrosive to aragonite shells below a certain depth called the 'saturation horizon' which occurs at around 1000m depth. However, at one of our sampling s
'/>"/>

Contact: Audrey Stevens
auev@bas.ac.uk
44-012-232-21414
British Antarctic Survey
Source:Eurekalert

Page: 1 2

Related biology news :

1. Kessler Foundation implements Ekso Bionics first commercial robotic exoskeleton
2. Research reveals first evidence of hunting by prehistoric Ohioans
3. First model of how buds grow into leaves
4. American College of Rheumatology releases first classification criteria for polymyalagia rheumatica
5. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
6. First complete full genetic map of promising energy crop
7. FirstMark Announces New Hire Jay Houtman as Southeast Regional Sales Manager
8. FirstMark Exhibiting at the Inaugural Atlanta Clinical Cardiology Update
9. New technology tracks sparrow migration for first time from California to Alaska
10. First mass extinction linked to marine anoxia
11. Scientists complete first-ever emperor penguin count from space
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2014)... over the last decade in Taiyuan, China, have substantially ... a greater than 50% reduction in costs associated with ... according to researchers at the Columbia Center for Children,s ... Health, the Shanxi Medical University, the Center of Diseases ... University School of Public Health. , The study is ...
(Date:9/2/2014)... take stress in stride; others are done in by ... molecular mechanisms of this so-called stress gap in mice ... could lead researchers to better understand the development of ... people, each animal has unique experiences as it goes ... experiences can alter the expression of genes, and as ...
(Date:9/1/2014)... held that corals whose calcium-carbonate skeletons form ... organisms that rely entirely on ocean currents to ... But now scientists at MIT and the Weizmann ... that they are far from passive, engineering their ... greatly enhance their ability to exchange nutrients and ...
Breaking Biology News(10 mins):Clean air halves health costs in Chinese city 2Discovery hints at why stress is more devastating for some 2Discovery hints at why stress is more devastating for some 3Nature's tiny engineers 2Nature's tiny engineers 3
... will rewrite the textbooks on how an ovary is formed, ... The study, now published in the journal PLOS ONE ... key role in the development of ovaries and ovarian follicles, which ... discovery is expected to prompt further studies around the world to ...
... low temperatures and NMR spectroscopy, the scientists visualized seven ... down from 25C to -16C. Their results show that ... in protein folding. The scientists, findings may contribute to ... and misfold during illness. Whether Alzheimer,s, Parkinson,s ...
... Researchers from North Carolina State University have found that one ... States the Argentine ant appears to have met ... have found that the Asian needle ant is successfully displacing ... needle ant with its venomous sting may be ...
Cached Biology News:Study prompts rethink of how ovaries develop 2Protein 'filmed' while unfolding at atomic resolution 2Protein 'filmed' while unfolding at atomic resolution 3Researchers find Asian needle ants displacing other aggressive invaders 2
(Date:9/2/2014)... September 02, 2014 The inventors of ... for chronic tinnitus are seeking support for development costs ... Indiegogo platform ( http://igg.me/at/tinaway ), was launched on September ... therapeutic ‘mHealth’ app and is based on ten years ... team of biomedical and software engineers, Dr. Ian Dixon ...
(Date:8/31/2014)... 2014 Available spectra is similar ... research and cultivation of a wide range of ... LEDs with proven patented and pending wide spectrum ... uniformity in critical applications in contrast to growth ... “Our customers have a large variety of differently ...
(Date:8/29/2014)... but one of the most promising technologies for future ... light (photons) instead of electrons. First, it is necessary ... photons and control their direction. Researchers around the world ... control, but now scientists at the Niels Bohr Institute ... emitted one at a time and in a particular ...
(Date:8/29/2014)... Hills, NY (PRWEB) August 29, 2014 ... Burnt Hills Veterinary Hospital are seeking candidates to participate ... dogs with osteoarthritis. The ultimate goal of this ... donor stem cells into one or two arthritically affected ... treated joints. , Candidates for the current investigational ...
Breaking Biology Technology:tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 2tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 3tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 4tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 5Breakthrough in light sources for new quantum technology 2Burnt Hills Veterinary Hospital Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2
... Hard-to-transfect Cells , Dmitriy ... Kelnar, David Brown, Ambion, Inc. , ... RNA interference (RNAi) is a powerful , ... genes. It is used routinely for gene function analysis, target , ...
... Trace amounts of ribonuclease (RNase) , ... ubiquitous in the laboratory environment--on your skin, in the , ... , open to the air--it ... or eliminate RNase contamination. However, determining which , ...
... , High Quality Custom Synthesis ... Mouse, and Rat , Genomes , ... Silencer siRNA Libraries , , ... Quality Custom RNA Synthesis by Ambion Finding a highly effective ...
Cached Biology Technology:Delivering siRNAs to Difficult Cell Types 2Delivering siRNAs to Difficult Cell Types 3Delivering siRNAs to Difficult Cell Types 4Delivering siRNAs to Difficult Cell Types 5Delivering siRNAs to Difficult Cell Types 6Delivering siRNAs to Difficult Cell Types 7Combat RNase Contamination in the Lab 2Combat RNase Contamination in the Lab 3Combat RNase Contamination in the Lab 4Combat RNase Contamination in the Lab 5IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 2IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 3IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 4IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 5IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 6IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 7IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 8IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 9IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 10
... EKMax™ is a recombinant preparation of ... EKMax™ Enterokinase is expressed and isolated from ... highly purified enzyme preparation (2). It recognizes ... bond after the lysine residue. The enzyme ...
... are cytopathic effect inhibition assays, also known as ... tissue culture supernatents; serum from PK studies and ... is defined as the quantity of interferon required ... viral infection by 50%. All standards ...
...
...
Biology Products: