Navigation Links
Exploited fish make rapid comeback in world's largest no-take marine reserve network

No-take marine reserves, in which fishing is completely banned, can lead to very rapid comebacks of the fish species most prized by commercial and recreational fisheries, reveals a new study of Australia's Great Barrier Reef published in the June 24th issue of Current Biology, a Cell Press publication.

The researchers found in most cases that coral troutthe major targets of commercial and recreational hook-and-line fisheries in Australiabounced back in no-take reserves compared to fished sites in two years or less.

" We were surprised that we documented increases in coral trout density of 31% to 68% in such a short time," said study author Garry Russ of James Cook University in Queensland. "Others have seen such rapid increases in smaller-scale studies, usually at one or a few small reserves. The big surprise was that we detected a consistent, rapid increase in multiple large reserves spread over 1000 km offshore and 700 km inshore. This represents a positive and unprecedented response to reserve protection."

The new findings come from a joint study by scientists from James Cook University and the Australian Institute of Marine Science.

Australia's Great Barrier Reef Marine Park generates AU$5.8 billion annually from tourism and fisheries, the researchers said. In mid-2004, the Australian Government rezoned the park, placing more than 20% of each of 70 bioregions within it into the world's largest network of no-take marine reserves, covering more than 100,000 km.

The move sparked intense community interest and affected livelihoods, making monitoring of the new reserve network's effects imperative, the authors noted. In the new study, the teams used underwater visual census to survey reef organisms in new coral reef reserves and in control areas that remained open to fishing before and again 1.5 to 2 years after the reserves were put into place.

They found that the coral trout numbers were significantly higher in no-take reserves than in sites that remained open to fishing in four of five offshore regions and two of three inshore regions of the Great Barrier Reef.

The findings are probably due to decreased fishing mortality inside the new reserves, rather than increased fishing outside, they said. In inshore areas, where most recreational fishing occurs, the data showed increases in coral trout density inside reserves rather than decreases in adjacent fished areas after rezoning.

"Although preliminary, our results provide an encouraging message that bold political steps to protect biodiversity can produce rapid, positive results for exploited species at ecosystem scales," Russ said. "The people of Australia got what they wanted: more protection for an Australian icon. And it will help to boost tourism even more. It is an important lesson for the entire world."


Contact: Cathleen Genova
Cell Press

Related biology news :

1. Massive Canadian oilfield could be exploited using new UK system
2. Birds migrate earlier, but some may be left behind as the climate warms rapidly
3. Researchers document rapid, dramatic reverse evolution in the threespine stickleback fish
4. Arbor Vita rapid H5N1 flu diagnostic presented at ICEID meeting
5. New decontamination system kills anthrax rapidly without lingering effects
6. Selexis Announces Advanced Approach to Maximize Power of Genetic Elements for Rapid Development of High Performance Cell Lines
7. Asian waterbirds stage remarkable comeback
8. Quantum weirdness, parallel worlds, dinosaur poop, and the ultimate fate of the universe...
9. The best both of worlds -- how to have sex and survive
10. Largest ever acoustics meeting is next month from June 30 to July 4, in Paris, France
11. Findings released from 1 of the largest percutaneous coronary intervention trials ever
Post Your Comments:
(Date:10/29/2015)... Oct. 29, 2015  Rubicon Genomics, Inc., today ... distribution of its DNA library preparation products, including ... new ThruPLEX Plasma-seq kit. ThruPLEX Plasma-seq has been ... of NGS libraries for liquid biopsies--the analysis of ... prognostic applications in cancer and other conditions. Eurofins ...
(Date:10/27/2015)... , October 27, 2015 ... Semantic Gaze Mapping technology (ASGM) automatically maps data from ... Tracking Glasses , so that they can be ... --> Munich, Germany , October 28-29, ... maps data from mobile eye tracking videos created with ...
(Date:10/23/2015)... Oct. 23, 2015 Research and Markets ( ... "Global Voice Recognition Biometrics Market 2015-2019" report to ... --> The global voice recognition biometrics market to ... --> --> The ... prepared based on an in-depth market analysis with inputs ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... , Nov. 24, 2015 /CNW/ - iCo Therapeutics ("iCo" ... reported financial results for the quarter ended September ... in Canadian dollars and presented under International Financial ... States ," said Andrew Rae , ... regarding iCo-008 are not only value enriching for ...
(Date:11/24/2015)... , ... November 24, 2015 , ... ... of the year and one of the premier annual events for pharmaceutical manufacturing: ... from 8–11 November 2015, where ISPE hosted the largest number of attendees in ...
(Date:11/24/2015)... Global, Inc., a worldwide provider of clinical research services headquartered in ... company has set a new quarterly earnings record in Q3 of ... for Q3 of 2014 to Q3 of 2015.   ... with the establishment of an Asia-Pacific office ... Kingdom and Mexico , with the ...
(Date:11/24/2015)... ... November 24, 2015 , ... This fall, global software solutions ... in five states to develop and pitch their BIG ideas to improve health and ... are competing for votes to win the title of SAP's Teen Innovator, an all-expenses ...
Breaking Biology Technology: