Mediterranean Sea more like the Red Sea and worsening the impact of the invasive species. Invasive species have become a major component of the Mediterranean ecosystem and have serious impacts on the Mediterranean ecology, endangering many local and endemic Mediterranean species. A first look at some groups of exotic species show that more than 70% of the non-indigenous decapods and about 63% of the exotic fishes occurring in the Mediterranean are of Indo Pacific origin, introduced into the Mediterranean through the Suez Canal. This makes the Canal as the first pathway of arrival of "alien" species into the Mediterranean. The impacts of
Mediterranean Sea or Islamic sources. It may be to contrast with the Black Sea. In Persian, the name was translated as "Baḥr-i Safīd", which was also used in later Ottoman Turkish. It is probably the origin of the colloquial Greek Άσπρη Θάλασσα. Johann Knobloch claims that in Classical Antiquity, cultures in the Levant used colours to refer to the cardinal points: black referred to the north (explaining the name Black Sea), yellow or blue to east, red to south (i.e., the Red Sea), and "white" to west. This would explain both the Turkish "Akdeniz" (White Sea) and the Arab nomenclature described above.