11 Updates

'Blood test' for corals to measure impact of warming

Feb 27 2013, 1:45am CST | by

Sydney, Feb 27 (IANS) Researchers are developing a "blood test" for corals to measure how they are being affected by climate change and human activity.

Sydney, Feb 27 — Researchers are developing a "blood test" for corals to measure how they are being affected by climate change and human activity. They found hemoglobin genes in the microalgae which...

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Update
11

10 hours ago

Toxic Algae Warnings Posted At Western Ohio Lake

Source: WBNS-10 TV  |   May 24 2013, 4:13pm CDT

Advisories are back up at Ohio's largest inland lake warning some visitors to stay out of the water because of high levels of toxic algae. A spokesman for the Ohio Department of Natural Resources said recent ...

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10

10 hours ago

US Could Grow Enough Algae to Make 1/12 Nation's Fuel

Source: LiveScience.com  |   May 24 2013, 4:07pm CDT

An algae bloom in North Carolina, a region of the country equipped for broad-scale algae growth. CREDIT: Courtesy of Ildar Sagdejev via PNNL The United States could grow a whole lot more algae, and churn this pond scum into precio ...

Continue reading on: LiveScience.com  More like this

 
Update
8


Quote:
"Bacteria move faster when the temperature goes up, and that's when you see algae blooms"


Source: Reading Eagle

 
Update
7

11 hours ago

Toxic algae warnings posted at Grand Lake St. Marys

Source: The Fort Wayne Journal Gazette  |   May 24 2013, 3:48pm CDT

If you are interested in this story, you might be interested in others from The Journal Gazette. Go to www.journalgazette.net/newsletter and pick the subjects you care most about. We'll deliver your customized daily news report at 3 a.m. Fo ...

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Update
5

11 hours ago

Algae Provide A Food Bank For Starving Coral

Source: LiveScience.com  |   May 24 2013, 3:48pm CDT

Millennium Island in the South Pacific Ocean formed from a number of smaller islets built on coral reefs. CREDIT: NASA Earth Observatory. (ISNS) -- All over the world, coral reefs, the elaborate graceful ...

Continue reading on: LiveScience.com  More like this

 
Update
4

13 hours ago

State issues algae warning for Grand Lake

Source: The Lima News  |   May 24 2013, 1:14pm CDT

COLUMBUS — State officials are warning some people to stay out of Grand Lake St. Marys because of high levels of toxic algae. "Seniors, children and those with compromised immune systems should stay out of the water," Ohio Department of Natural Re ...

Continue reading on: The Lima News  More like this

 
Update
3

16 hours ago

Warning notices posted at Hemlington Lake over blue-green algae

Source: Gazette Live  |   May 24 2013, 10:44am CDT

The Environment Agency has confirmed the presence of blue-green algae, which research has shown can be harmful to humans Former Boro and Nottingham Forest defender Cooper becomes the club's sixth permanent manager in t ...

Continue reading on: Gazette Live  More like this

 
Update
2

19 hours ago

UA researchers design a photobioreactor to produce biofuel from algae

Source: AlphaGalileo,org  |   May 24 2013, 7:22am CDT

Researchers at the University of Alicante have patented a new device that allows more efficiently to cultivate microalgae and can be used as raw material for biofuel or for other valuable substances in the agri-food or pharmaceu ...

Continue reading on: AlphaGalileo,org  More like this

 
Update
1

21 hours ago

Thirsty? Salem City hopes to filter out issues of smelly algae in drinking water

Source: NJ.com  |   May 24 2013, 5:35am CDT

SALEM — Salem City Council said they hope to stay ahead of an issue with summer algae causing a strange odor and taste in the city’s water supply through regular testing and sampling of the water. According to Council Pre ...

Continue reading on: NJ.com  More like this

 
 

12 weeks ago

'Blood test' for corals to measure impact of warming

Feb 27 2013, 1:45am CST | by

Sydney, Feb 27 (IANS) Researchers are developing a "blood test" for corals to measure how they are being affected by climate change and human activity.

Sydney, Feb 27 — Researchers are developing a "blood test" for corals to measure how they are being affected by climate change and human activity.

They found hemoglobin genes in the microalgae which live symbiotically with corals, which may provide a readout on how stressed a particular coral is - and how likely it is to bleach and die.

Hemoglobin is the red material that carries oxygen around the body in our blood supply, but in plants and algae it mops up spare oxygen and toxic gases before these harm the plant.

In corals and their algae, it may also form a vital part of the day-night energy storage system, the journal Ecology and Evolution reports.

"When the corals undergo temperature stress, this system goes into overdrive and hemoglobin genes are expressed at a higher level," says Nela Rosic of The University of Queensland, who led the study.

"Due to its sensitive nature, hemoglobin has the potential to be used as a stress biomarker. This, for the first time, gives us a clear readout of stress levels in the corals and their symbiotic algae," Rosic explains, according to a Queensland statement.

Coral bleaching occurs when the symbiotic algae abandon the coral due to higher water temperatures or pollution and, deprived of their main energy source, the corals whiten and potentially perish.

"Despite the importance of coral reefs to hundreds of millions of people worldwide, we still do not clearly understand how well they can cope with changed conditions of climate and the environment they now face," explained study co-author Ove Hoegh-Guldberg, professor at the ARC Centre of Excellence for Coral Reef Studies (CoECRS).

Bleaching has hit more than half of the Great Barrier Reef in recent years, as well as a majority of coral reefs around the world.

IANS

Source: IANS

 

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<a href="/latest_stories/all/all/8" rel="author">Luigi Lugmayr</a>
Luigi is the founding Chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com. Luigi posts regularly on LuigiMe.com about his experience running I4U.

 

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