>
 
> FishingBoating-World.com
 
 
News Home Newsletters Photo Gallery Powerboat-World Australian Cruising World Cruising MarineBusiness-World Animated Knots
Video Gallery MarineBusiness-World
Sail-World.com : Crabs help Great Barrier Reef coral combat white syndrome
Crabs help Great Barrier Reef coral combat white syndrome


'Crabs help Great Barrier reef fight deadly disease'    F. Joseph Pollock
A particular species of crab has been assisting Great Barrier Reef coral in combating white syndrome, a deadly disease that causes coral tissue to disintegrate.

Joseph Pollock, from James Cook University’s School of Marine and Tropical Biology and the Australian Institute of Marine Science (AIMS), has been studying the disease, and its unlikely helper, the 'furry coral crab'.

The study, Cymo melanodactylus crabs slow progression of white syndrome lesions on corals, describes how coral-associated crabs help protect their coral hosts from disease, both of which appear throughout the Indo-Pacific.

Mr Pollock said another research team at JCU had originally reported on an association between white syndrome and these crabs.

Initially, it was thought the crabs were to blame for the disease, rather than helping cure it, he said.

'Researchers originally speculated that they may actually cause the disease, since diseased colonies have high numbers of crabs and it is known that these crabs can eat coral tissue,' he said.

'I have been doing a number of assays to determine the cause of this disease and it didn’t seem that the crabs could cause the amount of destruction you see with this disease, in which the coral tissue essentially just falls off of the coral skeleton.

'This was the first study to report that they actually slow the disease progression. To my knowledge, this is also the first study to demonstrate that coral-dwelling invertebrates have the potential to slow disease progression on their host.'

Mr Pollock said it was not entirely clear how the crabs slowed the disease progression.

'We hypothesize that it may be in a manner similar to maggot debridement therapy, an ancient medical treatment that is actually still in use today.'

Crabs help Great Barrier reef fight deadly disease -  F. Joseph Pollock  
Mr Pollock likened it to actor Russell Crow’s character in the film Gladiator when he has his shoulder wound cleaned by maggots.

'Essentially, the crabs could be slowing the disease by simply feeding on sloughing coral tissue and potentially harmful microbes at the lesion front.'

Mr Pollock said he had been studying white syndrome coral disease at Lizard Island, about 240km north of Cairns and 27km off the Far North Queensland coast, for about two years but this set of experiments was quite brief.

'We basically collected healthy and diseased coral colonies from the field, manipulated the crab numbers, and observed the fragments for three weeks.'

The disease had a devastating effect on corals, he said.

'The disease is pretty nasty. Essentially, the corals tissue just falls off of the skeleton and it is often fatal to the coral. Imagine your skin and muscle starting to fall off at your fingertips and spreading over the entire body leaving behind only skeleton.

'It is also interesting that we found these crabs to be very strongly attracted to white syndrome colonies. This means that when a coral is infected with the disease, crabs from nearby coral colonies could migrate to the diseased colony, slowing the disease. This could be a very interesting feedback mechanism whereby these crabs help to slow coral disease on reefs.'

The experiments were performed by Mr Pollock and Mr Sefano Katz, a collaborator from Israel who is completing an internship at JCU.

JCU’s Professor Bette Willis and Dr David Bourne from AIMS provided feedback and guidance on the manuscript.

This work was funded through by a Lizard Island Research Foundation Fellowship awarded to Mr Pollock for study at Lizard Island Research Station, a facility of the Australian Museum for two years.



For interviews, Mr Pollock can be contacted on 0466 407 141 or Frederic.Pollock@my.jcu.edu.au

ARC Centre of Excellence Coral Reef Studies


by ARC Centre of Excellence Coral Reef Studies

  

Click on the FB Like link to post this story to your FB wall

http://www.fishingboating-world.com/index.cfm?nid=106731

3:27 PM Tue 19 Feb 2013GMT


Click here for printer friendly version
Click here to send us feedback or comments about this story.







FishingBoating-World















From Penguins to Polar Bears by Cherie Winner,






Polar research: Six priorities for Antarctic science by Mahlon C. Kennicutt II and colleagues,
































Fishers encouraged to refresh knowledge of size and possession limits by Department of Agriculture, Fisheries and Forestry,




Risks to penguin populations continues by British Antarctic Survey,










4x4 Outdoors Show, Fishing and Boating Expo - Campfire cooking corner
More than 1,000 jungle perch fingerlings reared
Don’t get in a tangle using illegal nets
See the heat with FLIR ONE *Feature
John Temple to retire, Will Sangster appointed General Manager
Multihull Central launches Aquila range at SIBS *Feature
Dredging link to WA coral disease
Erin Loscocco, the foiling fisherman
Sydney International Boat Show - Days 3 & 4 *Feature
Endangered species are like Movie Stars - Charlie Sheens and Tom Hanks
Shellfish reefs in Port Phillip Bay to be rejuvenated
2014 Brisbane Boat Show - What's your trailer boat worth?
Operation GrindStop 2014
Big Dog Fat Cat Fishing Tournament - Big catches hauled in
Sydney International Boat Show - Day 2 *Feature
Marine Rescue volunteers celebrate new unit and $120,000 vessel
Inspections increased by QBFP to safeguard fishing industry
Sydney International Boat Show - images from Day 1 *Feature
Pantaenius Insurance - being seen in yellow, green and orange *Feature
Sydney International Boat Show begins!
Sydney International Boat Show - Changed conditions on Sydney Harbour   
Fraser Island annual fishing closure starts August 1   
Gold Coast Broadwater no closer to welcoming supermaxis *Feature   
Sydney International Boat Show - all systems go!   
EOMAP modelling shows what's under our water   
Great Barrier Reef in a bad state, and getting worse   
Gold Coast International Marine Expo - Organisers add extra sites   
A Mooring in Iceberg Alley   
Marine Rescue volunteers called to rescue out of fuel vessel updates   
Marine Rescue volunteers called to rescue second vessel out of fuel   
Predictwind helps you pick the best time to depart   
Marine Rescue volunteers rescue seven in marathon operation   
Reminder for boaties to be cautious near blind corners   
Watch this whale lift a Kayak clear out of the water   
BIC Techno 293 Worlds 2014 - Day 3   
Brisbane's biggest outdoors expo to celebrate ten years   
Sydney Harbour welcomes premium boat storage   
Drowning or electric shock? What you need to know to help save a life   
One week to go until the 2014 Sydney International Boat Show   
Fishing for a piece of Bimini history November 13-15   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL NEW FBW
LocalAds   DE  ES  FR  IT