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:5/22/2015)... , May 22, 2015 According ... by Solution (2D, 3D, Thermal, Emotion, Forensic), by Software (Middleware, ... (Government and Utilities, Consumer and Home) - Global Forecast ... grow from $2.77 Billion in 2015 to $6.19 Billion ... Browse 79 market data Tables and   43 ...
(Date:5/19/2015)... 18, 2015 Fingerprint Cards (FPC) has ... FPC1145, FPC1155 and FPC1035 from one if its module partners. ... including Q3 2015 and the sensors will be used by ... values for 2015 hereby amount to 740 MSEK to date. ... 140 MSEK and a number of smaller orders not separately ...
(Date:5/14/2015)... YORK , May 14, 2015 /PRNewswire/ ... in identity verification and online remote proctoring, ... a software-as-a-service (SaaS) company and creator of ... customers of the two companies will benefit ... in Canvas. As a fully ...
Breaking Biology News(10 mins):Facial Recognition Market Worth $6.19 Billion by 2020 2Facial Recognition Market Worth $6.19 Billion by 2020 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Verificient and Instructure Announce Alliance Partnership to Provide Online Proctoring for K-12 and Higher Education Institutions 2
(Date:5/28/2015)... May 28, 2015 Biscayne Pharmaceuticals, Inc ... of its growth hormone-releasing hormone (GHRH) technology will be discussed ... ASCO Annual Meeting. The data show that the family ... GHRH blockers, is present on many primary breast cancer ... that GHRH antagonists could have broad anti-cancer potential in ...
(Date:5/28/2015)... Glenn Keet, CEO of Clinovo ... EMR/EHR Clinical Data Integration with EDC Systems ” at ... DC on June 14th-18th. , During the presentation, Glenn ... with EDC, and will examine the value of patient ... electronic health records/electronic medical records integration. , The ...
(Date:5/28/2015)... May 28, 2015 Dr. Carl ... today that Roger L. Williams, MD, has joined ... Partners Premier Experts are top tier consultants whose ... extraordinary value to the company’s clients. Premier Experts ... help clients successfully develop their medical products, pursue ...
(Date:5/27/2015)... RXi Pharmaceuticals Corporation (NASDAQ: RXII ... developing innovative therapies primarily in the areas of ... a public offering of shares of its common ... stock and overallotment purchase rights to purchase shares ... stock, warrants and overallotment purchase rights are immediately ...
Breaking Biology Technology:Data Presented At 2015 ASCO Annual Meeting Shows Biscayne Pharmaceuticals' GHRH Antagonist Target Is Expressed Across All Breast Cancer Subtypes 2Data Presented At 2015 ASCO Annual Meeting Shows Biscayne Pharmaceuticals' GHRH Antagonist Target Is Expressed Across All Breast Cancer Subtypes 3Clinovo Presents at the DIA 2015 51st Annual Meeting in Washington, DC on June 14th-18th 2Former CEO and Chair of the Council of Experts at the USP, Roger L. Williams, MD, Joins NDA Partners as a Premier Expert Consultant 2RXi Pharmaceuticals Announces Proposed Public Offering of Common Stock and Warrants 2RXi Pharmaceuticals Announces Proposed Public Offering of Common Stock and Warrants 3
Cached News: