Scientists find 650 Years Change in Sea Ice using Underwater Algae

Scientists find 650 Years Change in Sea Ice using Underwater Algae

Scientists from the University of Toronto Mississauga (UTM) states that growing layers of algae in underwater sea reveals changes in sea-ice cover in past 650 years. Jochen Halfar, an associate professor in UTM's department of chemical and physical sciences, said this research has been taken place for the first time in marine history.

Researchers said that coralline algae have been used for the first time to find out the changes in Arctic sea ice. Jochen said that new algal record depicts decrease in ice cover over past 150 years. Jochen along with his colleagues from the Smithsonian Institution, Germany and Newfoundland had collected and analyzed the images of underwater algae.

It has been reported that these long-lived plant species had formed thick rock like calcite crust beneath the surface of sea to about 15 to 17 meters deep. This layer of thick rock can be easily found distributed across the Arctic and Sub-Arctic Oceans.

Earlier, a research was led by Walter Adey, from the Smithsonian, in which divers on their cruise had collected samples of the algae from very cold seawater. The biological theory states that algal growth depends on the temperature of the water and the intensity of light on them.

Researchers said that the ice over Arctic sea melts during the warm months, leading to formation of crusts.


FrenchTribune Specials

Rockstar launches new mobile game --- ‘Bully: Anniversary Edition’

In a recent announcement, Rockstar -- the creator of games like Grand Theft Auto and Max Payne -- has said that it is launching a new mobile game called ‘Bully: Anniversary Edition.’

The newly-launched Bully: Anniversary Edition game is the mobile version of the classic adventure-action game ‘Bully’ from the PlayStation 2 era. The new...

Most Popular

Nikola Motor unveils its zero-emissions truck --- Nikola One

In a recent unveiling Nikola Motor Co. at its Salt Lake...

Hundreds of veterans possibly exposed to HIV, hepatitis C

A Wisconsin Veterans Affairs medical center is offering...

Bipedal bear’s death motivates bear hunt opponents in New Jersey

The death of a bipedal bear that walked on two feet and...

Tomah VA hospital dentist resigned after exposing veterans to Hepatitis C, HIV

The dentist who allegedly exposed hundreds of veterans...

Poll

Can Greece Come out of Economic Problems: