je.st
news
Tag: corals
Corals can survive warmer seas if humans don't meddle
2013-04-06 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
New Scientist: Coral reefs might be able to take the heat of climate change -- if left well alone. A new study suggests reefs that are spared human interference can survive episodes of severe coral bleaching. When corals are stressed - by a sudden rise in the temperature of seawater or a change in its chemistry, for instance - they can no longer provide nutrients to the photosynthetic algae that live symbiotically within them. As a result the corals lose both the algae and their rich hues, which stem from the...
Tags: humans
survive
seas
warmer
Reef-building corals lose out to softer cousins due warming
2013-03-24 19:31:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: Climate change is likely to make reef-building stony corals lose out to softer cousins in a damaging shift for many types of fish that use reefs as hideaways and nurseries for their young, a study showed. Soft corals such as mushroom-shaped yellow leather coral, which lack a hard outer skeleton, were far more abundant than hard corals off Iwotorishima, an island off south Japan where volcanic vents make the waters slightly acidic, it said. A build-up of carbon dioxide in the atmosphere is turning...
Tags: due
lose
warming
cousins
How do corals survive in the hottest reefs on the planet?
2013-02-01 11:00:00| LifeSciencesWorld
[NEWS] Contact: Catherine Beswick catherine.beswick@noc.ac.uk National Oceanography Centre, Southampton (UK) Coral reefs are predicted to decline under the pressure of global warming. However, a number of coral species can survive at seawater temperatures even higher than predicted for the tropics during the next century. How they survive, whi…
Some corals are 'always prepared' to take the heat
2013-01-07 07:00:00| Climate Ark Climate Change & Global Warming Newsfeed
LA Times: As the tide drops, seawater in Ofu Lagoon gets cut off from the ocean swirling around American Samoa. Under the intense South Pacific sun, these shallow waters can reach 93 degrees -- temperatures that typically would make corals overheated, cause them to bleach bone white and die. Yet the corals in these hot waters seem to be thriving. A team of researchers at Stanford University has figured out why: These corals leave a set of 60 genes in the "on' position to help them resist heat shock and...