Navigation Links
Video study shows which fish clean up coral reefs, showing importance of biodiversity
Date:2/13/2013

turbance.

To determine which fish were most important information potentially useful for protecting them Hay and Georgia Tech graduate student Douglas Rasher moved samples of seven species of seaweed into healthy reef systems that had large populations of fish.

They set up three video cameras to watch the reef areas, then left the area to allow the fish to feed. They repeated the experiment over a period of five days in three different marine protected areas located off the Fiji Islands. In all, Rasher watched more than 45 hours of video to carefully record which species of fish ate which species of seaweed.

"The patterns were remarkably consistent among the reefs in terms of which fish were responsible for removing the seaweed," said Rasher. "Because different seaweeds use different defense strategies to deter herbivores from eating them, a particular mix of fish each adapted to a particular type of seaweed is needed to keep seaweeds off the reef."

Among the most important were two species of unicornfish, which removed numerous types of brown algae. A species of parrotfish consumed red seaweeds, while a rabbitfish ate a type of green seaweed that is particularly toxic to coral. Those four fish species were responsible for 97 percent of the bites taken from all the seaweeds.

"It's not enough to have herbivorous fish on the reef," said Hay, who holds the Harry and Linda Teasley Chair in Environmental Biology at Georgia Tech. "We need to have the right mix of herbivores."

While just four fish species consumed the large seaweeds, Rasher observed a different set of species involved in what he termed "maintenance" the removal of small algal growths before they have a chance to grow.

"Through our videos, we were able to observe both groups in action," he said. "There was not only little overlap in which fishes ate the large seaweeds, but there was also little overlap between fishes that comprised the
'/>"/>

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

Page: 1 2 3 4

Related biology news :

1. Get off my lawn: Song sparrows escalate territorial threats - with video
2. New American Chemical Society video highlights 5 of chocolates sweet benefits
3. Graduate student video on sequestration wins prize
4. 60th anniversary of NSF Grad Research Fellowship Program; UM fellow Staatermans video recognized
5. Medbox, Inc. Releases Demo Video and Collateral Media Concerning How Their Systems Will Be Used in Massachusetts Medical Marijuana Dispensaries
6. Feature package of Congo Basin forest photos, stories & videos
7. High-speed video and artificial flowers shed light on mysteries of hummingbird-pollinated flowers
8. Video-article shows how to purify magnetic bacteria
9. Can videogaming benefit young people with autism spectrum disorder?
10. Video-gaming fish play out the advantages of groups
11. Chemistry on Mars video with Curiosity Rover from the American Chemical Society
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Video study shows which fish clean up coral reefs, showing importance of biodiversity
(Date:10/29/2014)... factors, both genetic and environmental, have been blamed ... schizophrenia. Some, such as a family history of ... with Toxoplasma gondii , a parasite transmitted ... still viewed with skepticism. , A new study ... epidemiology at the University of Pennsylvania,s School of ...
(Date:10/29/2014)... all the rage. Thousands of scientists worldwide are conducting ... titanium dioxide nanoparticles from sun creams can get through ... from electronic products are as hazardous for the lungs ... food can get into the blood via the intestinal ... are flowing – and the number of scientific projects ...
(Date:10/29/2014)... in German . ... and Peter Schlögelhofer at the Max F. Perutz Laboratories ... University of Vienna dived into the process of meiosis ... display an inversion of the standard meiotic phases. The ... Nature Communications . , Meiosis is the two-step ...
Breaking Biology News(10 mins):Penn vet professor investigates parasite-schizophrenia connection 2Penn vet professor investigates parasite-schizophrenia connection 3Nanosafety research: The quest for the gold standard 2Nanosafety research: The quest for the gold standard 3Meiotic cell division 'the other way round' 2
... Damselfish are killing head corals and adding stress ... poor condition from global climate change, coral diseases, hurricanes, ... favorite homestead, will take the pressure off the other ... online journal PLoS ONE . The small, ...
... miles of the nation,s infrastructure of water ... of its useful life, but the mostly ... attention because of this "invisibility," said Sunil ... and environmental engineering (CEE). http://www.cee.vt.edu/index.php?do=view&content=0&apps=2&level=2&id=17&pid=b024555fa7f439a27509de488a7b5749 ...
... most likely to occur on Sunday, in less than 6 ... wearing black and white bathing suits, a first of its ... analyzed statistics from shark attacks that occurred in Florida,s Volusia ... 1956 and 2008. They also spent a year observing people ...
Cached Biology News:Distressed damsels stress coral reefs 2Efforts underway at Virginia Tech to address deterioration of nation's water pipes 2Case study analyzes why, where and when of leading shark attack site 2Case study analyzes why, where and when of leading shark attack site 3
(Date:10/30/2014)... Spartan Bioscience announced today that Health Canada has ... detects CYP2C19 genetic mutations in less than 60 minutes ... CYP2C19 System is the first near-patient DNA test for ... to the system’s ease of use, Health Canada has ... such as doctors, nurses, pharmacists, and laboratory technicians, in ...
(Date:10/30/2014)... Calif. , Oct. 30, 2014 Isis Pharmaceuticals, ... therapeutics, today announced that management will present a company overview ... at 8:30 a.m. ET in Boston, MA. ... be available on the "Investors & Media" section of the ... on the Isis website within 48 hours and will be ...
(Date:10/30/2014)... (Oct. 29, 2014) – The severe flooding that devastated ... been less destructive if the bridges, roads and other ... new study from the University of Colorado Denver. , ... infrastructure," said Jimmy Kim, PhD, associate professor of structural ... Applied Science and lead author the study. "There is ...
(Date:10/27/2014)... and TORONTO , Oct. 27, ... ) (OTCQB: GNBT) today announced two presentations demonstrating ... by its novel proprietary cancer immunotherapeutic AE37 vaccine ... cancer patients. The AE37 cancer vaccine is being ... Inc. ( www.antigenexpress.com ). The presentations are being ...
Breaking Biology Technology:Health Canada approves first near-patient DNA test for personalized medicine 2Health Canada approves first near-patient DNA test for personalized medicine 3Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2CU Denver study says upgrading infrastructure could reduce flood damage 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 4
... When Hurricane Dennis reached landfall in the Florida ... surprising a development. Weather Central Inc. , a ... almost the exact location two days earlier. , ,On ... a service used by more than 100 television stations ...
... unexpectedly, this sudden accident incubates a branding process, which can ... gives birth to an extreme name identity, whereupon a major ... not stirred -- and that's how we refer to today's ... the secrets of the various branding tricks and become aware ...
... by thousands of U.S. companies since the 1970s, it ... in more than 35 states have introduced legislation restricting ... effective cost-cutting tool has begun to soar. Early in ... outsourcing, it was often viewed as a way ...
Cached Biology Technology:Accidental naming 2Accidental naming 3Accidental naming 4Consider the legal issues before outsourcing offshore 2Consider the legal issues before outsourcing offshore 3Consider the legal issues before outsourcing offshore 4Consider the legal issues before outsourcing offshore 5
... Clarin represents the state-of-the-art in ... for the permanent preservation of immunohistochemical ... (DAB), Vega Red, New Fuchsin, and ... substrates on tissue sections. Clarin can ...
... Gene Inspector can perform many sophisticated DNA analysis ... much more than just another sequence analysis product. ... suite of analyses to be performed each time ... custom style sheets which specify exactly how your ...
... columns is a well-known separation technique in ... are in DNA/RNA extraction in microbiology, viral ... in chemical or analytical laboratories. ,This ... series instruments for smaller scales. The extraction ...
... is a revolutionary new application for ... a novel interface, Expression makes complex ... simple. Expression uses the very latest ... in the way sequences are analysed. ...
Biology Products: