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#1371773 - 29/03/2016 21:47 Coral Bleaching
Ronfishes Offline
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Registered: 25/02/2013
Posts: 3256
Loc: Gordonvale
Some footage of the most devastating coral bleaching ever seen.

https://au.news.yahoo.com/video/watch/31...g-damage/#page1
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#1371774 - 29/03/2016 21:51 Re: Coral Bleaching [Re: Ronfishes]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6208
Loc: Wollongong, NSW
Yes, I saw something about this on 7:30 last night. The whole reef from Lizard Is to PNG has been bleached from what I heard. It's a massive issue.

We're currently studying the Great Barrier Reef, so no doubt, this will be a big topic in my Geography class.

Thanks for starting this thread.


Edited by Wave Rider (29/03/2016 21:52)
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2016-17 season storm total for here= 15

Oct- 21st
Nov- 9th, 28th
Jan- 24th
Feb- 11th, 12th, 17th, 18th(2)
Mar- 13th, 16th, 22nd
Apr- 9th, 26th
May- 24th

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#1371776 - 29/03/2016 22:02 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
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Registered: 25/02/2013
Posts: 3256
Loc: Gordonvale
My friends parents posted some underwater photos on FB from Fitzroy Isalnd today, not sure if they realized but every pic has bleaching in the background
_________________________
MTD: 79.4mm
2016-2017 wet season: 1317.8mm
YTD: 1392.4mm

Science doesn't care what you think.

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#1371778 - 29/03/2016 22:12 Re: Coral Bleaching [Re: Ronfishes]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6208
Loc: Wollongong, NSW
Hmmm, they probably don't realise.

http://mobile.abc.net.au/news/2016-03-28...section/7279338

An article about it above. Basically what I watched last night in written form
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2016-17 season storm total for here= 15

Oct- 21st
Nov- 9th, 28th
Jan- 24th
Feb- 11th, 12th, 17th, 18th(2)
Mar- 13th, 16th, 22nd
Apr- 9th, 26th
May- 24th

The longer you wait for things, the more you appreciate them.

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#1371803 - 30/03/2016 11:04 Re: Coral Bleaching [Re: Ronfishes]
ozone doug Offline
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Registered: 06/11/2006
Posts: 1620
Loc: Roma SW QLD Eye to the West...
Man that's pretty bad ,I'll have to go and have another look with my family before its gone .Sad but it's just the start of a whole new world that wont be pretty. Acidifying of ocean will be leaving shellfish with no shells and carbon /methane .
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#1371869 - 30/03/2016 20:50 Re: Coral Bleaching [Re: Ronfishes]
Seira Offline
Meteorological Motor Mouth

Registered: 27/08/2003
Posts: 7037
Loc: Adelaide Hills.


Edited by -Cosmic- (naz) (30/03/2016 20:56)

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#1371910 - 31/03/2016 11:16 Re: Coral Bleaching [Re: Ronfishes]
SBT Offline
Meteorological Motor Mouth

Registered: 07/02/2007
Posts: 14154
Loc: Townsville Dry Tropics
All that dead coral is a resource that can be put to good use.

In the 1800's to 1940's it was used for all sorts of things but I am sure someone could come up with even more uses than the ones I have jokingly made below.

Some suggestions could include:
1) crushed and burnt to produce lime for cement.
2) harvest and paint it for souvenirs.
3) crushed for road base.
4) crushed and used in toothpaste
5) crushed and used for medical implants for spinal surgery
6) crushed and used in Cairns to build a semi decent beach
7) crushed and used for footpaths
8) crushed to make whitewash/lime render for walls
9) make jewellery out of it
10) filters for aqua culture
11) paint making
12) ceramics
13) compressed in moulds with the addition of epoxy glue to become furniture
14) kitty litter
15) oil spill clean up kits
16) abrasive paper for wood working
17) grinding pastes
18) soaking up greenies tears at rallies.
19) false teeth and dental implants
20) flog it off as modern day fossils
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#1372032 - 01/04/2016 19:27 Re: Coral Bleaching [Re: Ronfishes]
Locke Offline
Weatherzone Addict

Registered: 27/12/2007
Posts: 4297
Loc: Brisbane
I just returned from a 3 day liveaboard off Cairns and I would say the more vulnerable sections of the reef were about 20% bleached. On the other hand I dived a site called 3 Sisters where there were few visible signs of bleaching. I think it fared a bit better being a set of bommies separated from the main reef with plenty of water flowing over. Sites where the water flow was not as good I'm sure fared worse.

My understanding is that areas to the North of Lizard Island bore the brunt of 33C water temps whereas temps a little further South were in the 30-31C range. I plan on diving with Mike Ball later in the year that will visit some of those Northern Reefs so will get a clearer idea of the true picture at that time.

In terms of the reef being gone for good I wouldn't worry too much. Certainly sections will be hit hard from a strong El Nino event such as the one we just had but its far from having wiped out the whole reef and with another 15-18 years before the next strong El Nino it will have its chance to recover as it did from the 97/98 event.


Edited by Locke (01/04/2016 19:29)

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#1372043 - 01/04/2016 22:14 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3256
Loc: Gordonvale
_________________________
MTD: 79.4mm
2016-2017 wet season: 1317.8mm
YTD: 1392.4mm

Science doesn't care what you think.

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#1372101 - 02/04/2016 18:14 Re: Coral Bleaching [Re: Ronfishes]
Dipole Offline
Weather Freak

Registered: 10/01/2013
Posts: 321
Loc: Hervey Bay 48m,Tuross Head


Good resource,rf.

I note that "In both the 1998 and 2002 (el nino) events, the vast majority of
corals on the Reef survived, as sea temperatures came
back down again in time for them to recover. About
five per cent of the Great Barrier Reef’s coral reefs
experienced coral die-off in both these events."

Hope that the recovery this time is just as rapid.

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#1372264 - 04/04/2016 19:51 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3256
Loc: Gordonvale
Wasn't aware the Solitary islands had coral let alone bleaching:

http://www.surg.org.au/content/about-us
_________________________
MTD: 79.4mm
2016-2017 wet season: 1317.8mm
YTD: 1392.4mm

Science doesn't care what you think.

Top
#1372321 - 05/04/2016 11:41 Re: Coral Bleaching [Re: Ronfishes]
ozone doug Offline
Weatherzone Addict

Registered: 06/11/2006
Posts: 1620
Loc: Roma SW QLD Eye to the West...
Good find Ron . I didn't know coral was that far south ,I would like to see that spot now .
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Cheers Doug. 491 Doug/ uhf ch50 and ch40 When severe weather
BOM Stormspotter G0388 Roma S W Queensland Formerly Redcliffe.
https://www.wunderground.com/personal-weather-station/dashboard?ID=IQUEENSL852

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#1372742 - 11/04/2016 10:06 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3256
Loc: Gordonvale
Coral bleaching is now being reported on WA coast near Broome, previously unheard of in this area I think?

http://www.abc.net.au/news/2016-04-10/coral-bleaching-at-reddell-beach-in-broome/7314710


Edited by Ronfishes (11/04/2016 10:12)
_________________________
MTD: 79.4mm
2016-2017 wet season: 1317.8mm
YTD: 1392.4mm

Science doesn't care what you think.

Top
#1372746 - 11/04/2016 10:30 Re: Coral Bleaching [Re: Ronfishes]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6208
Loc: Wollongong, NSW
Geez that's bad also. Soon Ningaloo Reef will be hit, but hopefully not..
_________________________
2016-17 season storm total for here= 15

Oct- 21st
Nov- 9th, 28th
Jan- 24th
Feb- 11th, 12th, 17th, 18th(2)
Mar- 13th, 16th, 22nd
Apr- 9th, 26th
May- 24th

The longer you wait for things, the more you appreciate them.

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#1372763 - 11/04/2016 13:42 Re: Coral Bleaching [Re: Ronfishes]
desieboy Offline
Weatherzone Addict

Registered: 31/12/2002
Posts: 3192
Loc: Broome


Yes seen a bit of coral bleaching around the local reefs but it is fairly spasmodic usually worse near the more peripheral areas closer to shore.
Some reefs have been exposed to high temperatures during the lower tides when they completely out of the water and also high water temps with those hotter days as we have a lot of this year.

Usually we have more cloudy type days and mixing of the water with cyclones and lows but this year haven't had much at all which has contributed to the high water temps especially on the reef close to shore.
We had some bad fish kills from bacteria up the coast near Manari this year as well.

In September last year did a few dives around the area and in general I thought the coral was in pretty good shape .
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#1372777 - 11/04/2016 17:49 Re: Coral Bleaching [Re: Ronfishes]
Popeye Offline
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Registered: 30/12/2006
Posts: 7770
Loc: Cable Beach - Broome WA
Yeah definitely not the first time its happened here. A few years back you could see big white coral outcrops just under the surface on the low tides. They stood out clearly. Last few years there has not been any. Will be having some low tide trips at work soon so will find out if any bleaching in the areas we use. Agree with Des though in regards to local conditions in the NWest this year being pretty horrendous.
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Popeye's 2015/16 Broome Wet Season Images

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#1372780 - 11/04/2016 18:45 Re: Coral Bleaching [Re: Ronfishes]
Seabreeze Offline
Weatherzone Moderator

Registered: 18/09/2005
Posts: 10146
Loc: South West Rocks, NSW
Originally Posted By: Ronfishes
Wasn't aware the Solitary islands had coral let alone bleaching:

http://www.surg.org.au/content/about-us

There is also coral further south than that around Fish Rock at South West Rocks, just north of 31šS.
Lord Howe Island about 31.5šS but well offshore in the Tasman Sea has coral as well. Middleton and Elizabeth Reefs though further north than Solitary Island are large reefs well offshore, approx. between 29.5-30šS.
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Year-to-date Rainfall: 1248.2mm (Jan-Sep Avg. 1153.5mm) // Year-to-date Raindays: 106 (Jan-Sep Avg. 102.0 raindays)

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#1372793 - 11/04/2016 20:48 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3256
Loc: Gordonvale
Thanks for the local info Desie, Pops and Seabreeze.
If we see bleaching in Sept we are in serious trouble Des wink Those corals in WA are said to be some of, if not the hardiest in the world.
Was aware the Lord Howe claims the southern most coral reef. I went for a fisheries job of some sort for the Solitary islands way back in '98 when I was fresh out of college. Failed though lol
_________________________
MTD: 79.4mm
2016-2017 wet season: 1317.8mm
YTD: 1392.4mm

Science doesn't care what you think.

Top
#1372804 - 11/04/2016 23:51 Re: Coral Bleaching [Re: Ronfishes]
desieboy Offline
Weatherzone Addict

Registered: 31/12/2002
Posts: 3192
Loc: Broome

Hers a few pics of corals around the Riddell area which are pretty vulnerable .
Pops I think you paddle around this area in the dry although on bigger tides. wink
These pics were taken in March 2015 on king tides low of 0.67m .



]



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Climate is what we expect, weather is what we get.
- Mark Twain

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#1372806 - 12/04/2016 00:53 Re: Coral Bleaching [Re: Ronfishes]
Popeye Offline
Meteorological Motor Mouth

Registered: 30/12/2006
Posts: 7770
Loc: Cable Beach - Broome WA
Checked that spot out at low tide a few weeks ago Des. Awesome spot. Some of the best exposed corals around Broome at low tide there. Heaps of Turtles at the right time of year as well.
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