Navigation Links
Captain Scott's century-old collections suggests marine life is capturing more carbon
Date:2/22/2011

Tiny Antarctic marine creatures collected 100 years ago by Antarctic explorer Captain Robert Falcon Scott give new clues about polar environmental change. By comparing present-day bryozoans a sea-bed filter-feeding animal that looks like branching twigs with specimens from Scott's expeditions scientists have found the first conclusive evidence of increased carbon uptake and storage by Antarctic marine life.

Reporting this week in the journal Current Biology an international team of scientists explain how they examined annual growth bands in skeletons of specimens of bryozoans (Cellarinella nutti) collected from Antarctica's Ross Sea during the Census of Antarctic Marine Life. When compared with museum collections in the UK, US and New Zealand - including specimens from Scott's expeditions they found that since 1990 bryozoans grew more rapidly than at any time before. The most likely explanation is greater availability of food (phytoplankton). The findings suggest that this new growth is an important mechanism for transferring carbon into the sea bed.

Lead author, Dr Dave Barnes, of the British Antarctic Survey (BAS) says,

"For the first time we've been able to use the longest record of animal growth as evidence of rapid recent change to life on the seabed. Scott's biological collections are considerable in quality and quantity and will continue to become even more valuable for determining how life responds to change across time. Few biological studies in Antarctica go back more than 30 years, so these data are invaluable and highlight the importance of long-term monitoring."

The spurt in growth means that animals reach the size earlier at which ocean currents snap them off. As the animals topple over they bury carbon, therefore increasing the seabed's potential as a carbon sink.


'/>"/>

Contact: Athena Dinar
amdi@bas.ac.uk
44-012-232-21414
British Antarctic Survey
Source:Eurekalert

Page: 1

Related biology news :

1. Captain Birdseyes robotic nose
2. TGen-Scottsdale Healthcare researchers make breakthrough in lung cancer
3. TGen Clinical Research Services at Scottsdale Healthcare and Mayo Clinic study new cancer drug
4. Phoenix conference highlights TGens and Scottsdale Healthcares contributions to molecular oncology
5. TGen, Scottsdale Healthcare, Mayo Clinic study new drug to stimulate immune system of cancer victims
6. Unique study isolates DNA from Linnaeus botanical collections
7. Hunt for climate-ready crops accelerates as organizations search seed collections worldwide
8. Study suggests statins may prevent diabetic-related blindness
9. Earliest humans not so different from us, research suggests
10. Exposure to worm infection in the womb may protect against eczema, study suggests
11. Research suggests HIV causes rapid aging in key infection-fighting cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/15/2016)... ALBANY, New York , March 15, 2016 ... a new market report published by Transparency Market Research "Digital ... Growth, Trends and Forecast 2015 - 2023," the global digital ... at US$ 731.9 Mn in 2014 and is forecast to ... to 2023. Growth of micro, small and medium enterprises (MSMEs) ...
(Date:3/11/2016)... http://www.apimages.com ) - --> http://www.apimages.com ) - ... ( http://www.apimages.com ) - Germany . The ... refugee identity cards. DERMALOG will be unveiling this device, and a ... next week.   --> Germany . ... new refugee identity cards. DERMALOG will be unveiling this device, and ...
(Date:3/9/2016)... 2016 This BCC Research report provides an ... RNA Sequencing (RNA Seq) market for the years 2015, ... and reagents, data analysis, and services. Use ... RNA-Sequencing market such as RNA-Sequencing tools and reagents, RNA-Sequencing ... affecting each segment and forecast their market growth, future ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... Mich. , May 26, 2016  Agriculture nutrients ... Des Moines, Iowa is running their ... Lake Erie and coastal regions ... key to preventing this widespread issue. NECi ... Upper Peninsula, developed a new, easy to ...
(Date:5/26/2016)... -- Q BioMed Inc. (OTCQB: QBIO), a biotechnology ... presenter at the 5th Annual Marcum MicroCap Conference on Thursday, ... at the Grand Hyatt Hotel. The Company,s ... is scheduled to begin at 11a.m ET in the Broadway ... developments and outline milestones for the balance of 2016 and ...
(Date:5/26/2016)... ... 26, 2016 , ... After several promising treatments in Panama ... City of Knowledge in Panama, a 6 year-old Duchenne’s muscular dystrophy patient received ... year following FDA approval of a second application for a single patient, investigational ...
(Date:5/26/2016)... ... May 26, 2016 , ... FireflySci has been manufacturing ... laboratories all over the globe. Their cute firefly logo has been spreading to ... FireflySci makes spectrophotometer calibration standards that never require recalibration. These revolutionary standards ...
Breaking Biology Technology: