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Rhopilema Nomadica
''Rhopilema nomadica'', the nomad jellyfish, is a jellyfish indigenous to tropical warm waters of the Indian and Pacific Oceans. Since 1970's it has been also found in Mediterranean Sea, where it entered via the Suez Canal ( Lessepsian migration). It has been found in the Eastern Mediterranean, off the coast of Lebanon, Israel, Gaza, Cyprus, Turkey, and in the Aegean Sea off the coast of Greece. ''R. nomadica'''s body is light blue and the bell is rounded. It can grow up to 10 kg of weight, and its bell is commonly 40–60 cm in diameter, but can be up to 90 cm. The European Union lists it as one of the worst invasive marine species in European waters. Effects on humans ''R. nomadica'' can cause very painful injuries to humans, since it has vermicular filaments, which are covered in venomous stinging cells, in the mouth arms. The ''R. nomadica'' had caused the largest numbers of envenomisations along the southern Levant coast. These jellyfishes are notorious for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jellyfish
Jellyfish, also known as sea jellies or simply jellies, are the #Life cycle, medusa-phase of certain gelatinous members of the subphylum Medusozoa, which is a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals, although a few are anchored to the seabed by stalks rather than being motile. They are made of an umbrella-shaped main body made of mesoglea, known as the ''bell'', and a collection of trailing tentacles on the underside. Via pulsating contractions, the bell can provide propulsion for animal locomotion, locomotion through open water. The tentacles are armed with cnidocyte, stinging cells and may be used to capture prey or to defend against predators. Jellyfish have a complex biological life cycle, life cycle, and the medusa is normally the sexual phase, which produces planula larvae. These then disperse widely and enter a sedentary #Life cycle, polyp phase which may include asexual budding before reaching sexual maturity. Jellyfish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suez Canal
The Suez Canal (; , ') is an artificial sea-level waterway in Egypt, Indo-Mediterranean, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia (and by extension, the Sinai Peninsula from the rest of Egypt). The canal is a key trade route between Europe and Asia. In 1858, French diplomat Ferdinand de Lesseps formed the Suez Canal Company, Compagnie de Suez for the express purpose of building the canal. Construction of the canal lasted from 1859 to 1869. The canal officially opened on 17 November 1869. It offers vessels a direct route between the Atlantic Ocean#North Atlantic, North Atlantic and northern Indian Ocean, Indian oceans via the Mediterranean Sea and the Red Sea, avoiding the South Atlantic and southern Indian oceans and reducing the journey distance from the Arabian Sea to London by approximately , to 10 days at or 8 days at . The canal extends from the northern terminus of Port Said to the southern terminus of Port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lessepsian Migration
The Lessepsian migration (or Erythrean invasion) is the migration of marine species along the Suez Canal, usually from the Red Sea to the Mediterranean Sea, and more rarely in the opposite direction. When the canal was completed in 1869, fish, crustaceans, mollusks, and other marine animals and plants were exposed to an artificial passage between the two naturally separate bodies of water, and cross-contamination was made possible between formerly isolated ecosystems. The phenomenon is still occurring today. It is named after Ferdinand de Lesseps, the French diplomat in charge of the canal's construction. The term was coined by Francis Dov Por in his 1978 book. The migration of invasive species through the Suez Canal from the Indo-Pacific region has been facilitated by many factors, both abiotic and anthropogenic, and presents significant implications for the ecological health and economic stability of the contaminated areas; of particular concern is the fisheries industry in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aegean Sea
The Aegean Sea is an elongated embayment of the Mediterranean Sea between Europe and Asia. It is located between the Balkans and Anatolia, and covers an area of some . In the north, the Aegean is connected to the Marmara Sea, which in turn connects to the Black Sea, by the straits of the Dardanelles and the Bosphorus, respectively. The Aegean Islands are located within the sea and some bound it on its southern periphery, including Crete and Rhodes. The sea reaches a maximum depth of 2,639 m (8,658 ft) to the west of Karpathos. The Thracian Sea and the Sea of Crete are main subdivisions of the Aegean Sea. The Aegean Islands can be divided into several island groups, including the Dodecanese, the Cyclades, the Sporades, the Saronic Islands, Saronic islands and the North Aegean islands, North Aegean Islands, as well as Crete and its surrounding islands. The Dodecanese, located to the southeast, includes the islands of Rhodes, Kos, and Patmos; the islands of Delos and Naxos are wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greece
Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to the east. The Aegean Sea lies to the east of the Geography of Greece, mainland, the Ionian Sea to the west, and the Sea of Crete and the Mediterranean Sea to the south. Greece has the longest coastline on the Mediterranean Basin, spanning List of islands of Greece, thousands of islands and nine Geographic regions of Greece, traditional geographic regions. It has a population of over 10 million. Athens is the nation's capital and List of cities and towns in Greece, largest city, followed by Thessaloniki and Patras. Greece is considered the cradle of Western culture, Western civilisation and the birthplace of Athenian democracy, democracy, Western philosophy, Western literature, historiography, political science, major History of science in cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levant
The Levant ( ) is the subregion that borders the Eastern Mediterranean, Eastern Mediterranean sea to the west, and forms the core of West Asia and the political term, Middle East, ''Middle East''. In its narrowest sense, which is in use today in archaeology and other cultural contexts, it is equivalent to Cyprus and a stretch of land bordering the Mediterranean Sea in Western AsiaGasiorowski, Mark (2016). ''The Government and Politics of the Middle East and North Africa''. p. 5: "... today the term ''Levantine'' can describe shared cultural products, such as Levantine cuisine or Levantine archaeology". .Steiner & Killebrew, p9: "The general limits ..., as defined here, begin at the Plain of 'Amuq in the north and extend south until the Wâdī al-Arish, along the northern coast of Sinai. ... The western coastline and the eastern deserts set the boundaries for the Levant ... The Euphrates and the area around Jebel el-Bishrī mark the eastern boundary of the northern Levant, as d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seawater
Seawater, or sea water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately of dissolved salts (predominantly sodium () and chloride () ions). The average density at the surface is 1.025 kg/L. Seawater is denser than both fresh water and pure water (density 1.0 kg/L at ) because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration increases. At typical salinity, it freezes at about . The coldest seawater still in the liquid state ever recorded was found in 2010, in a stream under an Antarctic glacier: the measured temperature was . Seawater pH is typically limited to a range between 7.5 and 8.4. However, there is no universally accepted reference pH-scale for seawater and the difference between measuremen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Plant
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more Electric generator, generators, rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a Electrical conductor, conductor creates an electric current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, petroleum, oil, and natural gas to generate electricity. Low-carbon power sources include nuclear power, and use of renewable energy, renewables such as solar power, solar, wind power, wind, geothermal power, geothermal, and hydroelectricity, hydroelectric. History In early 1871 Belgian inventor Zénobe Gramme invented a generator powerfu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizostomatidae
Rhizostomatidae is a family of cnidarians in the class Scyphozoa. Genera and species According to the World Register of Marine Species, 11 extant species are in four extant genera within this family: *Genus ''Eupilema'' **'' Eupilema inexpectata'' Pages, Gili & Bouillon, 1992 *Genus '' Nemopilema'' **'' Nemopilema nomurai'' Kishinouye, 1922 *Genus '' Rhizostoma'' Cuvier, 1800 **'' Rhizostoma luteum'' (Quoy & Gaimard, 1827) **'' Rhizostoma octopus'' (Linnaeus, 1758) **''Rhizostoma pulmo'' (Macri, 1778) *Genus ''Rhopilema'' Haeckel, 1880 **''Rhopilema esculentum'' Kishinouye, 1891 **'' Rhopilema hispidum'' **''Rhopilema nomadica'' **'' Rhopilema rhopalophora'' (Haeckel) **'' Rhopilema rhopalophorum'' Haeckel, 1880 **''Rhopilema verrilli'' Extinct taxa * Genus †'' Essexella'' * Genus †'' Simplicibrachia'', is known from fossils in the Ypresian-aged Monte Bolca Monte Bolca is an Ypresian, Early Eocene-aged geologic site located near Verona, Italy, Verona, Italy. A ''Konserva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
