Please select your home edition
Edition
Lancer Inflatables - BJ

Reefs to soon retain and nurture more of their own coral larvae

by ARC Centre of Excellence Coral Reef Studies on 30 Apr 2014
Goniastrea aspera releasing egg sperm bundles Andrew Baird http://www.coralcoe.org.au/
Researchers have discovered that increasing ocean temperatures due to climate change will soon see reefs retaining and nurturing more of their own coral larvae, leaving large reef systems less interconnected and potentially more vulnerable.

'We found that at higher temperatures more coral larvae will tend to stay on their birth reef,' says the lead author of the study published today, Dr Joana Figueiredo from the ARC Centre of Excellence for Coral Reef Studies (Coral CoE) at James Cook University.

'This is good news in an otherwise cloudy picture for isolated reefs, because in the future they will be able to retain more of their own larvae and recover faster from severe storms or bleaching events,' she adds.

Professor Sean Connolly, also from the Coral CoE, explains that while more coral larvae will stay close to their parents, fewer will disperse longer distances, leaving reefs less connected.

'The loss of connectivity can make reef systems such as the Great Barrier Reef more vulnerable,' he said.

'So interconnected reef systems that depend on the recruitment of coral larvae may take more time to recover after a disturbance, such as a cyclone, because fewer larvae will disperse from other reefs to the disturbed reef.'

Professor Connolly adds that weaker connections between reefs means warm-adapted corals, such as those in the northern Great Barrier Reef, may take longer to expand their ranges to the south.

Similarly for isolated reefs, Dr Saki Harii from the University of the Ryukyus says, 'While isolated reefs can retain more of their own larvae, this also leaves them with fewer possibilities to change their species composition to adjust to climate change.'

Professor Andrew Baird from the Coral CoE says the implications of the research present management with both challenges and opportunities.

'Our results demonstrate that global warming will change patterns of larval connectivity among reefs. On a positive note, the stronger link between adults and recruits means an even greater benefit if we reduce local threats such as dredging and fishing methods that can damage corals,' Professor Baird says.

Nevertheless, he explains, 'This does not reduce the need for global action on climate Increased local retention of reef coral larvae as a result of ocean warming by Joana Figueiredo, Andrew H. Baird, Saki Harii and Sean R. Connolly appears in Nature Climate ARC website
Pacific Sailing School 660x82 1Hamilton Island LuxuryBIA 2016 Sydney Boat Show 660x82

Related Articles

America's Cup - Arbitration Panel Hearing over Kiwi Qualifier for July
ACEA CEO, Russell Coutts has confirmed that the Arbitration Panel will hold its first Hearing in July. In a yet to be published interview in Sail-World, America’s Cup Events Authority CEO, Russell Coutts has confirmed that the Arbitration Panel will hold its first Hearing in July. This is the first official indication that the three person Arbitration Panel had even been formed, however Sail-World’s sources indicated that it had been empanelled since last January, possibly earlier.
Posted today at 3:19 am
Rio 2016 - The Qualification Games - Part 2
Yachting NZ's refusal to nominate in three classes won in the first round of 2016 Olympic Qualification is unprecedented Yachting New Zealand's refusal to nominate in three classes won in the first round of 2016 Olympic Qualification is without precedent. Subject to Appeal, the Kiwis have signaled that they will reject 30% of the positions gained in the ISAF World Sailing Championships in Santander in 2014.
Posted on 22 May
Gladwell's Line - World Sailing changes tack after IOC windshift
Over the past year, we've given the International Sailing Federation (now re-badged as World Sailing) a bit of stick Over the past year, we've given the International Sailing Federation (now re-badged as World Sailing) a bit of stick. Every blow well earned over issues such as the pollution at Rio, the Israeli exclusion abomination plus a few more. But now World Sailing is getting it right.
Posted on 21 May
Rio 2016 - The Qualification Games - Part 1
Antipodean selection shenanigans aside, the Qualification system for the Rio Olympics appears to be achieving its goals Antipodean selection shenanigans aside, the Qualification system for the Rio Olympics appears to be achieving goals set in the Olympic Commission report of 2010. Around 64 countries are expected to be represented in Rio de Janeiro in August. That is a slight increase on Qingdao and Weymouth, but more importantly a full regional qualification system is now in place
Posted on 19 May
Taming the beast-a conversation with Stuart Meurer of Parker Hannifin
While AC72 cats were fast, they difficult to control, so Oracle partnered with Parker Hannifin to innovate a better way. If you watched videos of the AC72s racing in the 34th America’s Cup (2013), you’re familiar with the mind-boggling speeds that are possible when wingsail-powered catamarans switch from displacement sailing to foiling mode. While foiling is fast, there’s no disguising the platform’s inherent instability. Now, Oracle Team USA has teamed up with Parker Hannifin to innovate a better way.
Posted on 18 May
From foiling Moths to Olympic starting lines-a Q&A with Bora Gulari
Bora Gulari’s is representing the USA at the Rio 2016 Olympics in the Nacra 17 class, along with teammate Louisa Chafee. Bora Gulari (USA) has made a strong name for himself within high-performance sailing circles, with wins at the 2009 and 2013 Moth Worlds. In between, he broke the 30-knort barrier and was the 2009 US SAILING Rolex Yachtsman of the Year. His latest challenge is representing the USA at the Rio 2016 Olympics in the Nacra 17 class as skipper, along with his teammate Louisa Chafee.
Posted on 12 May
Concern for Zika at Rio Olympics is now deadly serious
Alphabet soup is one description that has thus far not been used for either Guanabara Bay, Alphabet soup is one description that has thus far not been used for either Guanabara Bay, or the Rio Olympics. Many others have, and they were apt, but things have changed. So here now we have a situation where one man, Associate Professor Amir Attaran, who does have a more than decent string of letters after his name, is bringing nearly as many facts to bear as references at the article's end
Posted on 12 May
The importance of being Alive
Since buying the stunningly pretty Reichel-Pugh canting keel 66-footer, and re-naming her Alive, Since buying the stunningly pretty Reichel-Pugh canting keel 66-footer, and re-naming her Alive, the team have lined up for a lot of things, won plenty and nabbed a record, as well. She’s presently in a yard in the Philippines having a minor refit in readiness for the Australian season. It will commence with the upcoming Brisbane to Keppel and then head sharply into this year’s Hobart.
Posted on 10 May
Hoisted on their own petard
Now it was not that long ago that we wondered if there were some genuinely Shakespearean elements beginning to appear... Now it was not that long ago that we wondered if there were some genuinely Shakespearean elements beginning to appear in World Sailing’s premier event, the Sailing World Cup. In that time, a flurry of material has espoused all manner of joyous points including travel grants and prize money. That’s terrific and the hope is that somehow this will overcome the tyranny of distance for Melbourne
Posted on 9 May
Zhik - The brand born of a notion, not its history
here is probably every reason that ocean rhymes with notion. Zhik’s tagline is officially marketed as Made For Water There is probably every reason that ocean rhymes with notion. Zhik’s tagline has been officially marketed as Made For Water, and this is precisely what the company has done for the last eight years before the succinct and apt strapline came from out of R&D and into mainstream visibility.
Posted on 8 May