Navigation Links
DNA evidence shows that marine reserves help to sustain fisheries
Date:5/25/2012

Researchers reporting online on May 24 in the Cell Press journal Current Biology present the first evidence that areas closed to all fishing are helping to sustain valuable Australian fisheries. The international team of scientists applied a forensic DNA profiling approach to track the dispersal pathways of fish larvae throughout a network of marine reserves on Australia's Great Barrier Reef.

"Marine reserves have been set aside to create resilient ocean ecosystems and help sustain fisheries, yet there has been little clear evidence that they can provide either," said Hugo Harrison from the ARC Centre of Excellence for Coral Reef Studies and James Cook University in Australia. "This study provides the first conclusive evidence that larval supply from marine reserves generates important recruitment subsidies to both fished and protected areas."

The researchers focused their attention on two commercially and recreationally targeted fish species, coral trout and stripey snapper. Over 4 weeks during the peak reproductive season, the researchers collected tissue samples from 466 adult coral trout and 1,154 adult stripey snapper within three focal reserves. For the next 15 months, they then collected juveniles of both species from 19 protected and fished locations up to 30 kilometers from the focal reserves. By recording the sampling locations of all adult and juvenile fishes and using the DNA to assign offspring to one or both parents, they were able to track the movements of juveniles spawned in the focal reserves.

Based on that evidence, the researchers estimate that reserves, which account for just 28 percent of the local reef area, produced approximately half of all juvenile recruitment to both reserve and fished reefs within the study area.

"Until now, no one has been able to show that adequately protected reserve networks can make a significant contribution to the replenishment of fished populations," said Geoff Jones, lead author of the study. "The fate of the offspring of fish in the reserves has been a long-standing mystery. Now we can clearly show that the benefits of reserves spread beyond reserve boundaries."

Harrison says he hopes that policymakers and governmentsnot just conservation and fisheries biologistswill recognize marine reserve networks as a win-win for both fish conservation and commercial fisheries.

"Most importantly, I hope that recreational, artisanal, and commercial fishers will no longer perceive marine reserves as the 'fish that got away' but rather as the 'golden goose' of sustainable fishing practices," he says.


'/>"/>

Contact: Elisabeth (Lisa) Lyons
elyons@cell.com
617-386-2121
Cell Press
Source:Eurekalert

Related biology news :

1. New evidence that many genes of small effect influence economic decisions and political attitudes
2. Evidence of familial vulnerability for epilepsy and psychosis
3. Evidence shows that anti-depressants likely do more harm than good, researchers find
4. NIST/UMass study finds evidence nanoparticles may increase plant DNA damage
5. UNH research adds to mounting evidence against popular pavement sealcoat
6. Strong scientific evidence that eating berries benefits the brain
7. Research reveals first evidence of hunting by prehistoric Ohioans
8. Society of Interventional Radiology explores IR evidence in patient care
9. Evidence of past Southern hemisphere rainfall cycles related to Antarctic temperatures
10. Archaeologists find new evidence of animals being introduced to prehistoric Caribbean
11. Evidence supports ban on growth promotion use of antibiotics in farming
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/21/2016)... British Columbia , June 21, 2016 /PRNewswire/ ... appointed to the new role of principal product ... been named the director of customer development. Both ... NuData,s chief technical officer. The moves reflect NuData,s ... teams in response to high customer demand and ...
(Date:6/9/2016)... 2016 Paris Police Prefecture ... security solution to ensure the safety of people and operations ... the major tournament Teleste, an international technology group ... announced today that its video security solution will be utilised ... up public safety across the country. The system roll-out is ...
(Date:6/2/2016)... Perimeter Surveillance & Detection Systems, ... Infrastructure, Support & Other Service  The latest ... comprehensive analysis of the global Border Security market ... of $17.98 billion in 2016. Now: In ... in software and hardware technologies for advanced video surveillance. ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... ... and Mold) microbial test has received AOAC Research Institute approval 061601. , “This ... introduced last year,” stated Bob Salter, Vice President of Regulatory and Industrial Affairs. ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample tracking software ... State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. , ... Tremblay, President and COO of STACS DNA. “In further expanding our capacity as a ...
(Date:6/23/2016)... , June 23, 2016 On ... session at 4,833.32, down 0.22%; the Dow Jones Industrial Average ... 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ), Aralez ... Inc. (NASDAQ: BIND ). Learn more about these ...
(Date:6/23/2016)... India , June 23, 2016 ... media market research report to its pharmaceuticals section ... profiles, product details and much more. ... spread across 151 pages, profiling 15 companies and ... available at http://www.reportsnreports.com/reports/601420-global-cell-culture-media-industry-2016-market-research-report.html . ...
Breaking Biology Technology: