Navigation Links
Captain Scott's century-old collections suggests marine life is capturing more carbon

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
British Antarctic Survey

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:
(Date:6/22/2016)... -- On Monday, the Department of Homeland Security (DHS) ... for the Biometric Exit Program. The Request for Information ... explains that CBP intends to add biometrics to confirm ... States , in order to deter visa overstays, ... Logo - ...
(Date:6/16/2016)... , June 16, 2016 ... is expected to reach USD 1.83 billion by ... View Research, Inc. Technological proliferation and increasing demand ... are expected to drive the market growth. ... The development of advanced multimodal techniques ...
(Date:6/9/2016)... , June 9, 2016 ... deploy Teleste,s video security solution to ensure the safety of ... during the major tournament Teleste, an ... systems and services, announced today that its video security solution ... to back up public safety across the country. The ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... ... June 24, 2016 , ... While the majority of ... the Cary 5000 and the 6000i models are higher end machines that use the ... of the spectrophotometer’s light beam from the bottom of the cuvette holder. , ...
(Date:6/23/2016)... ... June 23, 2016 , ... Mosio, a leader in ... Trials Patient Recruitment and Retention Tips.” Partnering with experienced clinical research professionals, Mosio ... practical tips, tools, and strategies for clinical researchers. , “The landscape of how ...
(Date:6/23/2016)... , June 23, 2016   Boston ... of novel compounds designed to target cancer stemness ... has been granted Orphan Drug Designation from the ... treatment of gastric cancer, including gastroesophageal junction (GEJ) ... inhibitor designed to inhibit cancer stemness pathways by ...
(Date:6/23/2016)... Md. , June 23, 2016 A person ... from the crime scene to track the criminal down. ... the U.S. Food and Drug Administration (FDA) uses DNA evidence ... Sound far-fetched? It,s not. The FDA ... sequencing to support investigations of foodborne illnesses. Put as simply ...
Breaking Biology Technology: