ferferhha

Blue fish swim pretty fast on the coral reefs near the Mexican resort of Cancun, but the structure of unhealthy spots started showing where pollution threatens one of the largest coral reef in the world.

Dead parts of the coral under the surface of the water and began Alzka algae, which feed on the remnants of sewage flowing from the city tourism is growing rapidly replace them.

And areas such as the Chitalis of coral reefs near the northern edge of a Caribbean reef stretching from Mexico to Honduras die around the world with the practice of people and cities more pressure on the environment.

According to a study published in December that it is possible that climate change leads only to the death of coral reefs around the world by 2100 because of carbon emissions and raise the temperature of the oceans make it more acidic.

Roberto Iglesias says specialized in biology from the University of Marine Science Station UNAM near Cancun that local environmental problems such as sewage and agricultural waste and overfishing could kill most coral reefs in the world before being killed by global warming contracts.

He added Iglesias, who co-authored a study on the impact of patrolling science of climate change on coral reefs that "the effect of pollution as bad, but perhaps the worst effects of global warming."

And human waste, such as those issued by the Cancun Hotels and purposes night exacerbate threats to coral reefs around the world, such as poaching to the detriment of fish that feed on algae that are harmful to coral reefs.

And coral reefs under the surface and covered with rock gardens like animals known as Albolb minutes.

And the adoption of these animals coral reefs through the secretion of calcium carbonate slowly over the years, thousands of structures alleviate the strike launched by hurricanes to coastal cities as they are essential nurseries for fish.

It also gives the animals bright colors of coral pink and purple enjoyed by divers and promote tourism between the Great Barrier Reef from Australia to the Florida Keys

Amandamemo

Scientists in Japan to identify different gene may be linked to the situation of twilight sleep (shift in times of the day sleeping), a condition characterized by extensive sleep during the day and the lack of clarity of vision and muscle weakness.

This situation is occurring in one out of every two thousand five hundred people in the United States and Europe, but more frequently at least four times between Japanese.

The researchers analyzed a set of genetic factors or the DNA of the 222 wounded Japanese situation twilight sleep, and 389 others are suffering from this situation.

The researchers said in a report published in the journal "Nature Jinteks" He appeared a different gene significantly affected by repeating cataplexy.

The Professor of the Department of Katsuchi Tokonaja "human gene" in the University of Tokyo in a telephone interview that "45% of those who suffer from the twilight sleep with this altered gene, compared with 30% among those who do not suffer from this situation."

He added that the identification of this gene could pave the different ways to experts to search for a cure.

It is called methylation of this gene (CP my T-1) and (CH KP), both of the apparent connection to this imbalance, and control gene (CP my T-1) in the enzyme regulates sleep, while the gene (CH KP) linked Sleep cycle and vigilance.

Scientists took a further step in examining the different between this gene Korea 424, and 785 people come to Europe, and 184 American of African descent.

A repetition of this gene significantly between Koreans living cataplexy, but these were not relevant and clear between the Europeans and Americans of African descent.

Tokonaja said, "We have no idea why the emergence of this gene altered such repetition of the large Japanese and Koreans living cataplexy, it may be a natural selection or by accident.

Amandamemo