Otherwise the corals would treat the algae as a parasite or invader and attempt to kill it.
But while the cooling effects of these particles may be keeping the corals from growing, according to this work, it might also be preventing bleaching.
BBC: Particles from fossil fuels 'affect the growth of corals'
According to Science Daily, if the corals do not recover the algae "within a few days" of expelling them, the coral reefs eventually crumble and die.
In the past, news of this kind has tended to be kept secret for fear of scaring away the tourists who pay to dive, swim and snorkel among the corals.
Conversely, the algae -- and therefore the coral -- rely on CO2 for their very survival as the algae soak up the CO2 and sunlight to produce carbohydrates for the corals to eat in the first place.
The stressful conditions make corals release the algae -- their source of food -- and thereby effectively starve themselves to death in the process.
Within the next five years, the Coral Restoration Foundation plans to grow and transplant 50, 000 corals in the Keys, which he says is the largest effort of its kind in Florida and the Caribbean.
In the Red Sea, we were the first ever to film the fluorescence in Eritrean corals.
These form the basis of a typical community of organisms made up of cold corals, sponges and the like.
And what this means to life in the oceans is potentially disastrous: corals and mollusks have more difficulty making shells, plankton at the base of the food chain become less viable, and whole ecosystems are potentially threatened.
Ecosystems and environmental change: over the past decade it has become clear that most of the deep-water ecosystems (cold-water corals) are highly influenced by the presence of deep-water circulation.
But the harm they do as a destroyer of habitat, by ripping up corals and sponges, and wrecking the nurseries of fish species that grow very slowly, seems out of proportion to any gain from scraping the ocean floor: one zoologist has compared it to cutting down virgin forests, full of rare species, to collect squirrels.
The team is still "training" the software that will control the bots to "recognise" corals and distinguish them from other sea objects.
Brendan Cummings, oceans programme director at the Center for Biological Diversity which has brought several court actions against the Bush administration on climate change, also welcomed the commercial fishing ban but said curbing greenhouse emissions was also vital for the long-term preservation of corals.
When too much of this gas dissolves in sea water, corals build skeletons only with the greatest difficulty.
Dr Tsien's contribution was to tinker with the GFP gene, and the genes of related proteins found in corals, to produce other colours.
The impact is already noticeable in areas where corals have been transplanted.
But corals are not self-sufficient, say the authors of the report.
Brilliant corals were arranged in glass-fronted cabinets, in the manner of an apothecary shop.
Diving on the Great Barrier Reef for several days, I saw a bewildering variety of corals in every shape and size.
FORBES: Is the Great Barrier Reef Doomed? One of the World's Leading Coral Scientists Thinks So
Another major South Wales brewers, Cardiff-based Brains is showing an active interest and with the possibility of easy, tax-free betting from any pub, bookmakers Corals are also in early negotiations.
What scientists are learning, however, is that this relationship between corals and algae is also based on a delicate communication process from the algae to the coral, telling it that the algae belong there, and that everything is fine.
Not the great marine biologist himself, unfortunately, but his definitive study of reef-building corals of Australia.
FORBES: Is the Great Barrier Reef Doomed? One of the World's Leading Coral Scientists Thinks So
The house was filled with vintage objects: repurposed corbels and bricks, bone-white corals alongside mercury glass.
During the expedition, scientists have already observed and documented previously unexplored shipwrecks, and deep-sea corals and associated communities of life.
The brief criticizes BP for, among many other things, downplaying the plight of sick dolphins in Barataria Bay, La, of dead and dying deep-sea corals and of coastal marshes still matted with oil.
FORBES: Justice Dept Hammers BP For Gross Negligence In Gulf Oil Spill
Gato Island, a 40-minute boat ride from Malapascua, is home to delicate seahorses, kaleidoscopic fish and multi-hued corals, as well as a labyrinth-like cave where whitetip sharks are often spotted sleeping during the day.
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