sail-world.com
 
 
News Home Cruising Photo Gallery Video Gallery
Sail-World.com : DNA-Fingerprinting Technology proves Marine Protected Areas work
DNA-Fingerprinting Technology proves Marine Protected Areas work

'The 12th annual ICRS presented evidence that marine parks do help help restock exploited fish populations.'    ARC Centre of Excellence Coral Reef Studies ©    Click Here to view large photo

The first conclusive evidence that no-take protected areas can help restock exploited fish populations on neighbouring reefs was presented at the International Coral Reef Symposium hosted in Cairns, Queensland Australia today, 12 July.

The findings are expected to help resolve a long-running debate worldwide about whether areas closed to all forms of fishing help replenish fish numbers outside the marine protected areas (MPAs).

'Using DNA fingerprinting technology, we now can clearly show that the benefits of MPAs spread beyond reserve boundaries, providing a baby bonus to fisheries,' Geoff Jones, from the ARC Centre of Excellence for Coral Reef Studies (CoECRS) and James Cook University, who led the study.

Jones presented his team’s findings as part of a media briefing on fish larval dispersal and the connectivity between reefs entitled 'Reef Connections.' Held every four years, the International Coral Reef Symposium is the premier global coral reef conference and a hotbed of the latest advances in coral reef science. The research and findings presented at ICRS2012 are fundamental in informing international and national policies and the sustainable use of coral reefs globally.

Jones was joined by Leanne Fernandes, Director and Principal Consultant, Marine and Coastal Resource Management, Earth to Ocean, Australia; Stephen D. Simpson, Marine Biologist & NERC KE Fellow, School of Biological Sciences, University of Bristol, United Kingdom; and Bob Warner, Professor of Marine Biology at the University of California, Santa Barbara.

A full video of the briefing, with each panelist’s discussion of the current science presented at ICRS and management applications of fish larval research, is available online at www.icrs2012mediaportal.com.

The groundbreaking study was carried out in the Keppel Island group on Australia’s Great Barrier Reef by researchers from the ARC Centre of Excellence for Coral Reef Studies (CoECRS), in conjunction with other leading research institutions.

'The implications for local fishing communities around the world are huge,' said Fernandes, who was the manager of the Representative Areas Program in Australia that established one-third of the Great Barrier Reef as no-take protected areas. 'It’s never easy to protect areas from fishing because, so often, the fished areas are very important for local communities for food, livelihoods and lifestyles. So fishermen need to know for sure it will work.'

Fernandes said that Jones’ research also shows that MPAs can be effective on small scales, which has implications worldwide. For many communities, particularly in the developing world that depend on small areas of reef for food and income, there are limited options for closing areas to fishing.

'The MPAs weren’t tens of kilometres across. Some were about two kilometres cross or even 800 meters across, and they still worked,' she said. 'This is great news for local fishing communities around the world because protecting areas about this size might be possible for them; protecting really big areas is just too hard.'

DNA fingerprinting technology shows the benefits of MPAs spread beyond reserve boundaries. -  Ken Anthony  


Using DNA samples, the team of scientists tracked the dispersal pathways of juvenile coral trout and stripey snappers larvae from MPAs in the Keppel island group. They found that a very large proportion of juveniles, 65 percent, settled in nearby areas that are open to fishing. Most of the baby fish settled within one to five kilometres of reserves but a significant proportion dispersed 10 kilometres or more to find a new home.

In addition, the study found that the six marine reserves, which cover only 28 percent of the total reef area of the Keppels, had generated 50 percent of the total juvenile fish, both inside and outside of the reserves. 'So 28 percent of the area protected equals 50 percent of the baby fish produced. This means there would have been a lot less fish if the no-take areas weren’t there,' Fernandes said.

Warner said that research into fish larvae behavior is tremendously important to developing successful management approaches. Fish larvae, which are microscopic fish babies, normally are dispersed in the open ocean after they are born, living for days or weeks, before the lucky survivors make it back a reef.

'This poses immense problems for management. How do you manage fish populations if the young produced are scattered out to sea like dandelion puffs drifting in the wind?' he said. But Jones has addressed this critical issue by showing that these fish babies do return to their home reefs, which means that local actions to protect fish can have direct local benefits, he said.

Simpson added that recent research has shown that fish larvae have highly developed senses, included smell and hearing, and can actively swim back to their home reefs. But that means the reef habitat and adult fish populations need to be intact for them to find their way home. That’s exactly what MPAs can provide, with spillover benefits for neighboring reefs.

'This research is the strongest support for management strategies that adopt marine protected areas as a fundamental tool for sustaining fish populations,' Simpson said.

More at www.icrs2012.com


by Melissa Lyne

  

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

http://www.sail-world.com/index.cfm?nid=99601

12:25 AM Thu 12 Jul 2012GMT


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







News - USA and the World

























Aldo Alessio Regatta - Three days of tight racing by Erik Simonson, Pressure-Drop.US,










Sailing Champions League - which is Europe's best sailing club? by Dan Ibsen & the Sail-World team, Copenhagen


Weta fun at the Wine & Roses Regatta by Bruce Fleming, Santa Barbara
















J/111 World Championships - The Winner is Shmokin Joe! by Stuart Johnstone, Cowes, Isle of Wight












2014 Detroit Cup - Morvan wins by Dobbs Davis, Detroit


Newport Bucket Regatta 2014 -Images by George Bekris
IFDS Worlds 2014 - Final report: USA qualifies for Rio 2016
Extreme Sailing Series: Absent With-Out Leave – Ben Ainslie Racing
2014 IFDS World Championship - New champions claim medals
2014 IFDS World Championships - Sunday’s race images by Tim Wilkes
Shark World Championships underway in Toronto
Anna Tunnicliffe: Alinghi second o'all - Extreme Sailing Series, Day 3
Formula Kite World Championships - Nocher and Bridge crowned Champions
Emirates Team NZ: Frustrating Day 3 in Extreme Sailing Series, Cardiff
Extreme Sailing Series: Light winds help The Wave Muscat - Day 3
Extreme Sailing Series 2014 Act five - Absent without leave – the wind
IFDS Worlds 2014 - Images: Race day five
Herreshoff Classic Regatta 2014 - Images by Ingrid Abery
Youth Olympics - Gold to Argentinean and Chinese Techno 293 racers
Youth Olympics Games Nanjing - Double Youth Olympic Gold for Singapore
Sevenstar Round Britain and Ireland Race 2014 - Two Handers celebrate
Audi Melges 20 U.S. National Championship 2014 - Brazilian dance party
IFDS Disabled Sailing Worlds Day 5 - USA fighting for Rio 2016 Berths
J/111 World Championship 2014 - Day 4: Shmokin Joe consolidates lead
Anna Tunnicliffe: Alinghi on top - Extreme Sailing Series, Day 2
2014 IFDS World Championships - Breezy frustrations   
2014 Detroit Cup - Down to the final four   
Sevenstar Round Britain and Ireland Race - Every finisher's a winner   
2014 49er, 49er FX, Nacra 17 U.S. National Championship - Day 2   
J/24 US National Championship - Will Welles leaps into lead   
J/111 World Championships - Day 3   
Extreme Sailing Series Act 5 – Day 2   
Light wind and a freak storm at Youth Olympic Sailing Competition   
31st Audi Hamilton Island Race Week - Declared 'best ever'   
2014 IFDS World Championships - Aussies on fire   
2014 IFDS World Championships - Saturday’s racing images by Tim Wilkes   
2014 IFDS World Championships - Day 5 images by Jude Robertson   
2014 Audi Melges 20 U.S. National Champ - Day 3 images by Joy Dunigan   
Holt’s 25-year dream comes true with 505 Worlds Victor   
Emirates Team NZ: Collision puts an end to bid for a better day at ESS   
Extreme Sailing Series: Ben Ainslie Racing - mixed results on Day 2   
America's Cup: New brand and image partnership announced with SME   
Extreme Sailing: Tough and testing day on Cardiff Bay - Day 2 + Video   
2014 49er, 49er FX, Nacra 17 U.S. National Championship - Day 1   
2014 J/111 World Championship - Bigger breeze arrives on day 2!   


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 WAS US
LocalAds   DE  ES  FR  IT