The flora and fauna of the Black sea is quite diverse, although in recent years, in connection with the anthropogenic activity and has undergone significant changes in its composition and strength. For the most part, the denizens are a species brought from the Mediterranean, here there are even a few relict species. Living organisms can be found at depths up to 150 metres, before the beginning of the hydrogen sulphide layer, which also determines the relative poverty of the animal world, compared to the Mediterranean sea.
Algae of the Black sea includes 270 species of multicellular benthic algae and 600 species of phytoplankton. The most common types are villaflora, kladofora, cistozira, Ulva, Zostera. In the summer the most active development escobilla and ceratium. Common diatoms.
The fauna is even more diverse, it includes more than 2500 species of animals, most of which were unicellular and crustaceans – about 500 species. In second place – shellfish, about 200 species, and only fish 160 species. The rest of the mass consists of numerous species of invertebrate animals. Continue reading
Why is the sea red? The etymology of the name “Red sea” to the end is still not clear. The most common opinion is the presence of water reddish-brown color. This color to it is given in the season of its flowering is a specific type of algae. The ancient Egyptians because of the unusual color of the stones was called the red Land of the desert, bordering the sea. An extraordinary spectacle, when her reflection in the water, changes its color to coral.
Where is Red sea? It is located between the Arabian Peninsula and Africa and is an inland sea of the Indian ocean. The red sea washes the shores of Saudi Arabia, Yemen, Israel, Jordan, Eritrea, Djibouti, Sudan and Egypt.
From the underground of divergence of two tectonic plates, more than 20 million years ago, there was a deepening. This depression is called a rift valley. Continue reading