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Latest Zooxanthella Stories

2014-07-29 23:03:53

Corals that build reefs have few defenses against rising ocean temperatures and other effects of global climate change. The authors of an article published in the current issue of Phycologia seek to recognize a coral species group that appears to have adapted to withstand the physiological stress of ocean temperature changes. Lawrence, KS (PRWEB) July 29, 2014 Phycologia – Corals that build reefs have few defenses against rising ocean temperatures and other effects of global climate...

2013-02-27 10:48:27

Using a world-first scientific discovery, Australian researchers are developing a stress-test for coral, to measure how coral reefs are being impacted by pressures from climate change and human activity. The scientists have found hemoglobin genes in the microalgae which live symbiotically with coral, which may provide a readout on how stressed a particular coral is — and how likely it is to bleach and die. Coral bleaching occurs when the symbiotic algae abandon the coral due to...

Coral Found Living In Caves In Indo-Pacific
2012-10-13 07:36:00

Alan McStravick for redOrbit.com - Your Universe Online Troglodyte, noun: 1) a member of any of various peoples (as in antiquity) who lived or were reputed to live chiefly in caves; 2) a person characterized by reclusive habits or outmoded or reactionary attitudes; 3) your crazy uncle who, over Thanksgiving dinner, just feels he has to tell you why it´s your political leanings responsible for all that is wrong in this country; Merriam-Webster is going to have to add a...

DNA Analysis Can Help In Classifying Single-celled Algae
2012-09-20 12:28:58

For nearly 260 years -- since Carl Linnaeus developed his system of naming plants and animals -- researchers classified species based on visual attributes like color, shape and size. In the past few decades, researchers found that sequencing DNA can more accurately identify species. A group of single-celled algae -- Symbiodinum -- that live inside corals and are critical to their survival -- are only now being separated into species using DNA analysis, according to biologists....

Coral Reef Diversity - Sometimes Less Is More
2012-08-29 10:08:25

Brett Smith for redOrbit.com - Your Universe Online A general rule of Darwinian evolution is that diversity provides for a more robust population that is capable of withstanding a higher degree of stress than a more homogenous population. However, researchers at the University of Hawaii at Manoa (UHM) have found that less diverse coral populations lead to reefs that are less sensitive to environmental disturbances, according to their report in Proceedings of the Royal Society B....

Improving Water Quality May Help Save Coral Reefs
2012-08-20 16:58:26

redOrbit Staff & Wire Reports - Your Universe Online It has been found that an unevenness of nutrients in reef waters can increase the bleaching vulnerability of reef corals according to Research from the University of Southampton and the National Oceanography Centre, Southampton. Numerous polyps jointly forming a layer of living tissue that cover the calcareous skeletons make up the corals. Single-celled algae called zooxanthellae, which live within the coral polyps, is what they...

2012-07-12 12:21:09

Scientists have discovered two viruses that appear to infect the single-celled microalgae that reside in corals and are important for coral growth and health, and they say the viruses could play a role in the serious decline of coral ecosystems around the world. These viruses, including an RNA virus never before isolated from a coral, have been shown for the first time to clearly be associated with these microalgae called Symbiodinium. If it's proven that they are infecting those algae and...

Color Changes In Coral Reefs Due To Increased Growth
2012-07-10 21:21:09

New research has provided insight into the basic immune response and repair mechanisms of corals to disease and changing environmental conditions. The study, published in the latest issue of the journal Coral Reefs, found that increased growth is the underlying physiological process associated with disease, wounding and stress-related color changes in reef-building corals. The study investigated distinct green fluorescent protein (GFP)-like pigments responsible for the green, red and...

Study Shows Adaptive Capacity Of Reef Corals To Climate Change May Be Widespread
2012-04-12 07:42:53

Global survey of corals using high sensitivity genetic analysis shows many species can host multiple symbionts. A new study by scientists at the University of Miami's Rosenstiel School of Marine & Atmospheric Science suggests that many species of reef-building corals may be able to adapt to warming waters by relying on their closest aquatic partners - algae. The corals' ability to host a variety of algal types, each with different sensitivities to environmental stress, could offer a...

2012-02-02 22:57:31

First-of-its kind study of extreme temperature shock reveals complexities of climate-induced threats Around the world coral reefs are facing threats brought by climate change and dramatic shifts in sea temperatures. While ocean warming has been the primary focus for scientists and ocean policy managers, cold events can also cause large-scale coral bleaching events. A new study by scientists at Scripps Institution of Oceanography at UC San Diego compared damage to corals exposed to heat as...


Word of the Day
blee
  • Color; hue; complexion.
This word is Middle English in origin.
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