HOME >> BIOLOGY >> NEWS
Coral death results from bacteria fed by algae

(Santa Barbara, Calif.) Bacteria and algae are combining to kill coral and human activities are compounding the problem.

Scientists have discovered an indirect microbial mechanism whereby bacteria kill coral with the help of algae. Human activities are contributing to the growth of algae on coral reefs, setting the stage for the long-term continued decline of coral.

Reporting in the June 5 on-line version of the scientific journal Ecology Letters, scientists described laboratory experiments on coral and algae.

First author Jennifer Smith, a postdoctoral fellow at the National Center for Ecological Analysis and Synthesis (NCEAS) at the University of California, Santa Barbara, explained that the team of scientists, as part of a research expedition to the Line Islands, put algae and coral in chambers of seawater with filters between them. All of the corals with neighboring algae died, while coral without neighboring algae did not die. However, with the addition of an antibiotic, coral death even in the presence of algae was prevented, showing that bacteria fed by the algae are the agents of coral death. "We are the first to link these processes together," said Smith.

"This study tightly links the fields of microbiology with coral reef ecology to help guide reef conservation efforts," said senior author Forest Rohwer, assistant professor of microbiology at San Diego State University.

"Our study shows that bacteria are the front line that kill corals," Smith explained. "Algae release sugar, fueling bacterial growth on the corals. These bacteria suffocate the coral by cutting off the supply of oxygen. Once the corals die, this frees more space for more algae to grow. We think this process sets up a positive feedback loop that accelerates the rate of decline in already damaged reef ecosystems."

The report describes the other conditions that put coral reefs at risk. Overfishing reduces the number of fish that graze
'"/>

Contact: Gail Gallessich
gail.g@ia.ucsb.edu
805-893-7220
University of California - Santa Barbara
12-Jun-2006


Page: 1 2 3

Related biology news :

1. Corals -- More complex than you?
2. Corals that can fight global warming may one day help fragile reefs
3. Geological Approaches to Coral Reef Ecology
4. Coral stress like never in history
5. Coral reef conservation by means of the global network of Marine Protected Areas
6. Corals switch skeleton material as seawater changes
7. Coral reef resilience: Better feeders survive bleaching
8. Coral reef fish larvae settle close to home
9. Pollution causes 40 percent of deaths worldwide, study finds
10. Inflammation may cause preterm labor and fetal deaths
11. Bacteria may not hasten death

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Coral death results from bacteria fed algae

(Date:7/25/2014)... molecular testing panel developed at UPMC greatly increases ... for patients with thyroid nodules and cancer, report ... (UPCI), partner with UPMC CancerCenter., The test, available ... diagnostic testing agencies, improved the chances of patients ... according to the study published this month in ...
(Date:7/24/2014)... Scientists at The New York Stem Cell ... to creating a viable cell replacement therapy for ... , For the first time, NYSCF scientists generated ... samples of patients with primary progressive multiple sclerosis ... induce these stem cells into becoming oligodendrocytes, the ...
(Date:7/24/2014)... , July 24, 2014 /PRNewswire-iReach/ -- The Geneva ... from cardiac devices, has cut emergency room wait times ... San Diego (UCSD) Medical Center, according to a recent ... UCSD Emergency Departments are using the suite to access ... pacemakers or defibrillators. "Using Geneva,s technology platform ...
Breaking Biology News(10 mins):Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 3
(Date:7/25/2014)... the University of Leicester has furthered our understanding ... to create new materials using nanosized ,building blocks,. ... the prestigious academic journal Physical Review Letters ... in rich detail the structure and internal atomic ... molecule and a single helium atom. , The ...
(Date:7/25/2014)... The Conferee Networking committee is pleased to ... These two-hour sessions provide a unique networking opportunity for ... discuss new techniques, or brainstorm new ideas in an ... for consideration is August 31, 2014, and instructions can ... committee will review the topics, and status notifications will ...
(Date:7/25/2014)... (PRWEB) July 25, 2014 At the ... has granted a 60-day extension for the public comment ... Special Rule for Model Aircraft established by Congress as ... 2012. The 60-day extension establishes the new deadline for ... States Department of Transportation/FAA notice published in the Federal ...
(Date:7/24/2014)... Gain recognition for leadership and contribution ... biotech industry. Nominations are now being accepted for ... by the Bio Supply Management Alliance , ... professionals for the past 7 years. , Awards ... industry – Manufacturers, Service Providers, Material Suppliers, Technology ...
Breaking Biology Technology:Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3Pittcon 2015 Announces Call for Topics for Conferee Networking Sessions 2FAA Grants Comment Extension at the Request of AMA 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 3
Cached News: