The "fairy circles" appeared in the first Baltic Sea in 2008.
This "fairy circle" is the "bare array" of seagrass beds in the Balearic Islands (Mediterranean) and Baltic first appeared in 2008. Specifically, foreign bacteria have eroded and gradually encroach on seagrass beds in circles and oval shapes.
These circles appear to make scientists very worried because they are "signs of disease" that show that the entire ecosystem in these waters is in danger of extinction!
Researchers at Balearic Island University (Majorca, Spain) said the cause of foreign bacteria appearing in these areas is due to polluted seawater and climate change.
Scientists found high levels of sulfur in the mud surrounding these circles. This makes the grass poisoned and die slowly, worn out. It is possible that toxins are derived from agricultural pollutants, leaking into the sea.
Researcher Daniel Ruiz-Reynés said, "The undersea plant landscape is a measure of the health of marine ecosystems. The appearance of these" spots "in the seas shows that seawater is suffering from deep bacterial infection. Even the ecosystem will become extinct if not protected in time. '
In addition, according to the researchers, structures under the sea also assess the degree of climate change as well as the effects of human activities.
The loss of seagrass populations may change the Earth's marine ecosystem. Because seagrass has a very slow growth rate, at a few centimeters per year. The fact that these grasses are disappearing is a very difficult loss.