Changes in reef latitude

Since the 1980s, researchers have hypothesized that nutrient levels rather than temperature are the main factor controlling the latitudinal bounds of coral reefs, but the issue remains controversial. New results from an extensive survey of reefs in South Florida by a Harbor Branch Oceanographic Institution research team strongly support this hypothesis. The research suggests that, by supporting blooms of harmful seaweed, increasing nutrient pollution levels are reducing the areas where reef-building coral can survive, a result the team believes it is directly observing in Florida waters.

On Mon., Feb. 20, Brian Lapointe, a marine ecologist at Harbor Branch who leads the survey program, will present data from the research for the first time publicly at a 10:30 a.m. Hawaii Std. Time (3:30 p.m. EST) scientific session of the 2006 Ocean Sciences meeting in Honolulu (http://www.agu.org/meetings/os06/) . He will also discuss the results at an 11:00 a.m. Hawaii Std. Time (4:00 p.m. EST) press conference on Wed., Feb. 22.

Temperature is a key determinant of the extent of shallow water reefs. Nonetheless, some waters that are warm enough for reef building corals do not have them. In Florida, for instance, reef-building coral s are for the most part not found north of Palm Beach County, about a third of the way up the coast. This boundary appears to have been similar throughout the state's geological history, yet corals thrive in Bermuda, well north of there where temperatures are cooler.

One idea is that, both historically and now, this Florida coral cut-off has been determined by nutrient levels. Corals' need for oligotrophic, or nutrient poor, water is well known, but the relative importance of temperature and nutrients in defining coral range can be difficult to discern. Lapointe believes, based on more than 20 years of research at reefs in Florida and the Caribbean, that levels of the nutrient ph

Contact: Mark Schrope
Harbor Branch Oceanographic Institution

Page: 1 2 3 4

Related biology news :

1. Changes in chromosomal constitution of preimplantation embryos suggest caution in genetic screening
2. Changes in west coast marine ecosystems significant
3. Changes in amino acids in the 1918 influenza virus cut transmission
4. Changes in dietary protein may override inherited skeletal abnormalities
5. Symposium Changes on Earth honors Yale Geologist Robert Berner
6. Changes to in utero environment may alter onset of cancer, U of T study
7. Changes to embryos can elicit change in adult fish
8. Changes in technique can reduce radiation dose in CT examination
9. Changes in community size affect the outcome of competition
10. Using satellite observations to study photosynthetic trends in northern circumpolar high latitudes
11. Warming most evident at high latitudes, but greatest impact will be in tropics

Post Your Comments:
TAG: Changes reef latitude

(Date:9/24/2015)... 24, 2015  EyeLock LLC, a market leader of ... winning and latest technology in Booth #602 at next ... . EyeLock,s iris authentication technology provides an ... accuracy, making it the most proven way to authenticate ... technology to deliver a fast and friendly user experience ...
(Date:9/10/2015)... Sept. 10, 2015 Report Details ... Reveals Selling Opportunities and Revenue Prospects to Help ... of biologics, especially new drug classes? Get the ... ahead with exclusive market data and industry knowledge, ... developments, results, opportunities and sales predictions. Visiongain,s ...
(Date:9/10/2015)...  NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market, announces that the ... Modern, will feature the Wocket® smart wallet for the ... Touch Of Modern is an online ... to its 7.2 million members. Customers are affluent, urban ...
Breaking Biology News(10 mins):
(Date:10/8/2015)... , October 8, 2015 ...   --> Goldman Small Cap Research, ... small cap and microcap sectors, announced today that ... on PharmaCyte Biotech, Inc. (OTCQB - PMCB), a ... developing and preparing treatments for cancer and diabetes. ...
(Date:10/8/2015)...  The ALS Association, in partnership with Prize4Life, is ... revolutionize communication technology solutions for people living with ALS. ... (amyotrophic lateral sclerosis) is a progressive neurodegenerative disease that ... spinal cord. Eventually, people with ALS lose the ability ... to total paralysis and death within two to five ...
(Date:10/8/2015)... , ... October 08, 2015 , ... Talon Innovations, a ... Aerospace and other technology-driven industries, announces that it is one of three finalists for ... Midsize Company.” On Thursday, September 25 Talon Innovations was recognized as a nominee ...
(Date:10/7/2015)... MARLBOROUGH, Mass. , Oct. 7, 2015 ... week announced the start of the Boston Scientific ... to encourage advancements in the use of remote patient ... clinicians, engineers, designers and entrepreneurs can submit their ideas ... networking site ( www.Medstro.com ). Cambridge, ...
Breaking Biology Technology:
Cached News: