When I go diving and
see bleached coral, my computer usually shows that the temps are around 88 fahrenheit.
Not exact matches
Carbon dioxide emitted into the atmosphere is causing the water to get so warm and acidic that almost every place where
coral exists is expected to
see bleaching by 2050.
Charlie had
seen his first patch of
coral bleaching off the Great Barrier Reef's Palm Island in the early 1980s, a tiny clump of white skeleton that he photographed as a curio.
We
saw little evidence of
coral disease or
coral bleaching, and evidence of human impact was limited to some lost long lines at some of the sites.
The second phase, in 1998,
saw many of the remaining tree - like
corals being wiped out during a massive
bleaching event, probably driven by global warming.
So far
coral bleaching has been
seen around the Solomon Islands in the South Pacific, around Hawaii in the North Pacific and around the Maldives in the Indian Ocean.
Rising ocean temperatures are proving detrimental to both ocean species and
coral reefs, with the impact on
coral perhaps most noticeably
seen in
bleaching.
Coral bleaching on the northern Great Barrier Reef as
seen from under water during underwater surveys in March 2016
Corals affected by mass
bleaching on the northern Great Barrier Reef are «the sickest» Australian scientists have ever
seen.
However, climate change is causing abnormally high sea - surface temperatures, which is causing
corals to
bleach during summer months (
see below for detail).
Researchers from the Georgia Institute of Technology recently returned from the Island and are reporting that 50 to 90 percent of
corals they
saw were
bleached and as many as 30 percent were already dead at some sites.
However, to be 100 % honest — and it's not even related to the
coral bleach — there are other places in the word where you can
see amazing
corals.
But it's true that we did
see some
coral bleach on our last trip although it was not major where we were.
What I did witness was an array of
bleached and damaged
coral and a few fish intermittenly (I did
see a Paris Nights Angelfish - my favorite, so that saved the trip a bit).
Now it's happening again: reports of
coral bleaching are coming from across the Pacific Ocean; NOAA is reporting that the North Pacific warming is bigger than anything they've
seen to date.
I work in
coral restoration and have
seen too many
corals bleach and die because of climate change and thought it might be helpful for the readers here to understand that rapidly increasing temperatures are not a joke or a hoax.
«Hawaii is getting hit with the worst
coral bleaching they have ever
seen, right now.
Bleaching and mortality such as that seen in the Caribbean in 2005 will undoubtedly have long - term consequences for Caribbean coral reefs, as these corals have shown very slow rates of recovery to mortality from mass bleach
Bleaching and mortality such as that
seen in the Caribbean in 2005 will undoubtedly have long - term consequences for Caribbean
coral reefs, as these
corals have shown very slow rates of recovery to mortality from mass
bleachingbleaching [16].
Marine biologist David Burdick who has been studying the
coral around Guam for more than 10 years, told Truthout the frequency of
bleaching events he is
seeing «is all new to us.»
Prior to these events, they'd never
seen anything on Guam that would be classified beyond a «moderate»
coral bleaching event.
Not only do increased ocean temperatures
bleach coral by forcing them to expel the algae which supplies them with energy (
see photo at left)[viii], but increased ocean CO2 reduces the availability of aragonite from which reefs are made.
«The biggest one I
see on a day - to - day basis is
coral bleaching caused by climate change.
Even with warming of 2 °C, we can expect to
see adverse effects on water availability in critical river basins, a more than doubling of forest fires in Amazonia by 2050, impacted
coral reef recovery from
bleaching events, among other effects.
As you will
see in the later articles, it is abnormal temperature events that cause
coral bleaching.
The reef stress comes from the fact that in elevated temperatures mass
bleaching is expected to be more frequent, frustrating
coral attempts at recovery, as
seen so far (multi-decade trend is decline in cover, admittedly from all causes since mass
bleaching at this scale is new).
See also this previous posting (Bolt gets it wrong again) and this post on record mass
coral bleaching occurring right now off Western Australia.
Corals affected by mass
bleaching on the northern Great Barrier Reef are «the sickest» Australian scientists have ever
seen.
Scientists from the Australian Institute of Marine Science this month surveyed 14
coral reefs between Cairns and Townsville to
see how they fared after being
bleached.