HOME >> BIOLOGY >> NEWS
Coral layers good proxy for Atlantic climate cycles

Tree rings may tell how old a tree is, but the rings or annual bands in some skeletal coral may tell not only the age of the animal, but also something of the dynamics of the ocean in which it grew, according to Penn State and University of Miami researchers.

"Some coral grows like a tree; each year a complete layer with both a high and low-density skeletal calcium carbonate band is formed by the coral animal," says Dr. Lisa Greer, assistant professor of geosciences. "Not all corals create rings, but the massive corals like boulder star coral or pin cushion coral do."

Greer, and Dr. Peter Swart, professor at the Rosenstiel School of Marine and Atmospheric Science, University of Miami, looked at both modern and fossil corals to see if the calcium carbonate of the coral skeletons could shed light on the temperature and salinity of the tropical Atlantic Ocean.

"In contrast to research in the tropical Pacific, there have been few definitive studies utilizing proxy records within Atlantic coral skeletons to provide information on the climate dynamics in this region," Greer told attendees at the fall meeting of the American Geophysical Union today (Dec. 7) in San Francisco.

Information on the climate dynamics of the Atlantic is necessary as input to global and regional climate models. Not only are the current dynamic patterns important, but patterns from the past, which may differ from today, are important as well.

Greer uses a dental x-ray to locate the coral layers in a very thin slice taken from the core. In modern coral, she then counts down from the top to associate the layers with actual years. The sample she reported on was taken in 1994 and went back to 1935. Once the layers are located, Greer takes very small samples of the coral in a line running up the coral section. She averages about 22 samples per year covering the 59-year span.

Greer and Swart were investigating the relationship between non-radioactive or stable iso
'"/>

Contact: A'ndrea Elyse Messer
aem1@psu.edu
814-865-9481
Penn State
7-Dec-2002


Page: 1 2 3

Related biology news :

1. Corals can reestablish symbiosis with algae from their environments after bleaching
2. Research: Coral reefs decline actually began centuries ago
3. Corals defy species classification
4. Coral smothering green tide seaweed spreading on Florida reefs
5. Coralreef fish desperately needs mangrove forests and seagrass fields
6. Corals are being robbed of light
7. Increasing Carbon Dioxide Threatens Tropical Coral Reefs
8. The Presidents Coral Reef Task Force Meets On March 5-6
9. Bleached Coral Could Be Environment Warning
10. USGS Measures Coral Reef Recovery In Culebra, Puerto Rico
11. Scientists Urge Further Study Of Alarming Coral Reef Decline

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Coral layers good proxy for Atlantic climate cycles

(Date:11/4/2014)... Nov. 4, 2014   Neurotechnology , a ... that the latest version of its fingerprint matching ... Ongoing MINEX evaluation organized by NIST. The ... using the INCITS 378 fingerprint standard template format. ... public tenders in the United States ...
(Date:11/3/2014)... study published in this month,s Proceedings of ... of a recently discovered communication molecule of the body,s ... known to limit inflammation and the current study reports ... the ability of the immune system to recognize and ... IL-37,s effect on the immune system now allows us ...
(Date:11/3/2014)... that low birth weight and preterm birth are linked ... adulthood. Findings published in the American College of Rheumatology ... that low birth weight and pre-term babies were not ... as adults. , According to the ACR, 27 ... with clinical OA. Symptoms of OA range from mild ...
Breaking Biology News(10 mins):Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 3PNAS: From HIV to cancer, IL-37 regulates immune system 2Preterm, low birth-weight babies may need new hips in adulthood 2
(Date:11/21/2014)... 2014 , Todd Martensen ... Mariano Rodríguez es elegid vicepresidente senior de desarrollo ... está en marcha para comenzar de forma rápida la comercialización ... reciente aprobación en Europa   , ... anunciar los siguientes nombramientos: Todd Martensen ...
(Date:11/21/2014)... 2014 Author Matthew J. Pallamary’s second ... Other Side” published as a tribute to his ... “Fiction: Short Story” category of the 2014 USA ... CEO of USA Book News, said this year’s contest ... including Simon & Schuster, Penguin, John Wiley & Sons, ...
(Date:11/21/2014)... 20, 2014 BlueInGreen, LLC ( ... LLC (Pinnacle), and PCI, Inc., leading suppliers of ... have been selected to provide a new state-of-the-art ... Paul R. Noland Wastewater Treatment. The new ... HyDOZ® gas dissolution technology, Pinnacle Ozone’s industry ...
(Date:11/21/2014)... Nov. 20, 2014 Polaris Group announced ... in its Phase 1 trial of ADI-PEG 20 ... treatment of malignant pleural mesothelioma (MPM) and non-squamous ... clinical trials on ADI-PEG 20, both as monotherapy ... treatment of several other indications, including breast cancer, ...
Breaking Biology Technology:KLOX Technologies anuncia sus nombramientos ejecutivos 2KLOX Technologies anuncia sus nombramientos ejecutivos 3KLOX Technologies anuncia sus nombramientos ejecutivos 4KLOX Technologies anuncia sus nombramientos ejecutivos 5Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 2Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 3Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 4City of Fayetteville Leads Nation with Innovative Ozone Technology 2City of Fayetteville Leads Nation with Innovative Ozone Technology 3City of Fayetteville Leads Nation with Innovative Ozone Technology 4Polaris Group Announces Treatment of First Patient in Phase 1 Study of ADI-PEG 20 plus Pemetrexed and Cisplatin in Malignant Pleural Mesothelioma And Non-Squamous Non-Small Cell Lung Carcinoma 2
Cached News: