Navigation Links
Corals attacked by toxic seaweed use chemical 911 signals to summon help
Date:11/8/2012

rom the seaweed-coral contact area and the damaged coral but not the seaweed by itself.

"We demonstrated that the coral is emitting some signal or cue that attracts the fish to remove the encroaching seaweed," Hay said. "The fish are not responding to the seaweed itself."

Similar waters collected from a different species of coral placed in contact with the seaweed did not attract the fish, suggesting they were only interested in removing seaweed from their host coral.

Finally, the researchers obtained the chemical extract of the toxic seaweed and placed it onto nylon filaments designed to stimulate the mechanical effects of seaweed. They also created simulated seaweed samples without the toxic extract. When placed in contact with the coral, the fish were attracted to areas in which the chemical-containing mimic contacted the coral, but not to the area contacting the mimic without the chemical.

By studying the contents of the fish digestive systems, the researchers learned that one species Gobidon histrio actually eats the noxious seaweed, while the other fish apparently bites it off without eating it. In the former, consuming the toxic seaweed makes the fish less attractive to predators.

The two species of fish also eat mucus from the coral, as well as algae from the coral base and zooplankton from the water column. By defending the corals, the gobies are thus defending the home in which they shelter and feed.

"The fish are getting protection in a safe place to live and food from the coral," Hay noted. "The coral gets a bodyguard in exchange for a small amount of food. It's kind of like paying taxes in exchange for police protection."

As a next step, Hay and Dixson would like to determine if other species of coral and fish have similar symbiotic relationships. And they'd like to understand more about how the chemical signaling and symbiotic relationship came into being.

"These kinds
'/>"/>

Contact: John Toon
jtoon@gatech.edu
404-894-6986
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Coral scientists use new model to find where corals are most likely to survive climate change
2. Viruses could be the key to healthy corals
3. Less is more for reef-building corals
4. Pacific islands may become refuge for corals in a warming climate, study finds
5. Corals could survive a more acidic ocean
6. Some corals like it hot: Heat stress may help coral reefs survive climate change
7. Breaking up isnt hard to do -- the secret lives of corals on dark and stormy nights
8. Sweet new approach discovered to help produce metal casting parts, reduce toxicity
9. Gladstone, Stanford scientists block toxic protein that plays key role in Lou Gehrigs disease
10. Rice to take part in $10.8 million study of hemoglobin toxicity
11. Einstein researcher receives $10.8 million grant to study toxic blood reactions caused by hemoglobin
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Corals attacked by toxic seaweed use chemical 911 signals to summon help  
(Date:11/18/2014)... Nov. 18, 2014  The Secure Identity & ... today jointly announce the formation of The Airport ... its Identity and Biometric Entry and Exit ... received official support from BORDERPOL, the international non-profit ... and provide expertise regarding border security, traveler and ...
(Date:11/15/2014)... -- While we may still be a few years away from ... to gain instant access to all that ailed his patients, ... tablets for monitoring and measuring our health are cropping up ... a tad Orwellian to some, but a new survey suggests ... opportunities into their healthcare regime. These are some ...
(Date:11/7/2014)... led by Dr. Debra Auguste, associate professor, biomedical ... The City College of New York, have identified ... for one of the most aggressive forms of ... have a high mortality rate owing to aggressive ... therapeutic options. However, Professor Auguste,s team, discovered the ...
Breaking Biology News(10 mins):Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
... plasma membrane keeps epithelial cells in shape and maintains their ... al. The study will appear in the September 21, 2009 ... September 14). Spectrin, F-actin, and associated proteins form a ... blood cells. A similar network underlies the membranes of other ...
... Jerusalem, Sept. 14, 2009 -- A new understanding of ... brain opens the door to possible new future treatments ... reversible coma, according to Hebrew University of Jerusalem scientists. ... Journal of Neuroscience , the scientists, Marshall Devor, the ...
... UPTON, NY How much difference can a tenth ... how proteins work, an improvement in resolution of that miniscule ... and understanding how they interact. Case in point: New, ... U.S. Department of Energy,s Brookhaven National Laboratory provide not just ...
Cached Biology News:'Alert status' area in brain discoved by Hebrew University scientists 2High-res view of zinc transport protein 2High-res view of zinc transport protein 3
(Date:11/27/2014)... PITTSFIELD, Massachusetts, USA (PRWEB) November 26, 2014 ... with more accuracy, additive systems to enable 3D manufacture ... by analyzing road conditions are among finalists in nine ... Innovation . The awards are sponsored by SPIE, ... Photonics Media . , Winners will be announced ...
(Date:11/26/2014)... 2014 Deep Research Report on ... in-depth research report on the Ammonium Bifluoride market, ... classification, application, and industry chain structure as well ... market analysis, including China’s domestic market as well ... China, Japan etc. regions) industry analysis covering macroeconomic ...
(Date:11/26/2014)... 2014 The announced sales of three healthcare ... looking to expand in non-healthcare areas, says Kalorama Information. ... research firm says that  Siemens is the third largest ... of the IVD market , with 5.5 billion in ... composition would likely affect IVD market shares.  ...
(Date:11/26/2014)... November 26, 2014 On January, 14, ... Baltimore and Washington D.C. science community to the UMBC ... event, sponsored by the Protein Society, will take place ... Center, Room 312. Through discussion, presentations and workshops, ... importance of proteins, their role in the industry and ...
Breaking Biology Technology:Finalists Named for 2015 Prism Awards for Photonics Innovation 2Finalists Named for 2015 Prism Awards for Photonics Innovation 3Finalists Named for 2015 Prism Awards for Photonics Innovation 4Finalists Named for 2015 Prism Awards for Photonics Innovation 5Ammonium Bifluoride Market International Analysis of Manufacturing, Technology & Trends Now at ReportsnReports.com 2Ammonium Bifluoride Market International Analysis of Manufacturing, Technology & Trends Now at ReportsnReports.com 3Kalorama: Sale of Three Siemens Healthcare Units Raises Questions About Firm's IVD Future 2
... Life Sciences, Inc. (Nasdaq: CALP ) today announced that it will hold ... and 10, 2010 at Caliper,s Hopkinton headquarters.  The company will webcast ... on Thursday, June 10 . , ... The investor portion of the conference will feature a presentation by Kevin ...
... ... Offer Opportunities for Researchers to Stay Informed on Current ePRO Topics , ... Pittsburgh, PA (Vocus) June 3, ... solutions and services for global clinical research, today announced two additions to its ongoing, ...
... acceleration of CYT387 Phase II myelofibrosis study- , ... MISSISSAUGA, ON , June 3 /PRNewswire-FirstCall/ - YM BioSciences ... million through a non-brokered private placement of 2,500,000 common shares to be ... the closing price of the shares on the NYSE Amex on June ...
Cached Biology Technology:Caliper Life Sciences to Webcast Investor Session of Open House 2Caliper Life Sciences to Webcast Investor Session of Open House 3invivodata Expands Spring Educational Program 2invivodata Expands Spring Educational Program 3YM BioSciences raises US$3.2 million in support of JAK 1/2 program 2YM BioSciences raises US$3.2 million in support of JAK 1/2 program 3YM BioSciences raises US$3.2 million in support of JAK 1/2 program 4
Request Info...
Estrogen Receptor (ER) Competitor Assay Kits Green for Estrogen Receptors-alpha and -beta (ER-Alpha and ER-Beta) are ideal for screening novel estrogen receptor binding compounds and endocrine disrup...
Collected from 8-12 week old sexually mature rats. Pricing: $100/unit for 1 - 10 units...
Mouse Aminopeptidase P2/XPNPEP2 Affinity Purified PAb Protein Family: Aminopeptidases, Metalloproteases...
Biology Products: