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Eumicrotremus Derjugini
''Eumicrotremus derjugini'', also known as the leatherfin lumpsucker or petite poule de mer Arctique (meaning "small Arctic sea hen" in French), is a species of lumpfish native to the Arctic, the North Atlantic, and the North Pacific. It is known from Labrador, Ungava Bay, Hudson Bay, the Canadian Arctic, Svalbard, the Barents Sea, Franz Josef Land, Greenland, the Kara Sea, the Laptev Sea, the East Siberian Sea, the Chukchi Sea, and the Sea of Okhotsk. It occurs at a depth range of 5 to 1038 m (16 to 3406 ft), and it reaches 10 cm (3.9 inches) SL. It is a benthic species often found on substrates of mud, gravel, or stone at temperatures below 0 °C, feeding mainly on crustaceans and ''Oikopleura ''Oikopleura'' is a genus of tunicates in the class Appendicularia (larvaceans). It forms a mucus house every four hours at 20 degrees Celsius. This house has a coarse mesh to keep out big particles, and a fine mesh that collects the small part ...''. The young of this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Mikhailovitch Popov
Alexander () is a male name of Greek origin. The most prominent bearer of the name is Alexander the Great, the king of the Ancient Greek kingdom of Macedonia who created one of the largest empires in ancient history. Variants listed here are Aleksandar, Aleksander, Oleksandr, Oleksander, Aleksandr, and Alekzandr. Related names and diminutives include Iskandar, Alec, Alek, Alex, Alexsander, Alexandre, Aleks, Aleksa, Aleksandre, Alejandro, Alessandro, Alasdair, Sasha, Sandy, Sandro, Sikandar, Skander, Sander and Xander; feminine forms include Alexandra, Alexandria, and Sasha. Etymology The name ''Alexander'' originates from the (; 'defending men' or 'protector of men'). It is a compound of the verb (; 'to ward off, avert, defend') and the noun (, genitive: , ; meaning 'man'). The earliest attested form of the name, is the Mycenaean Greek feminine anthroponym , , (/Alexandra/), written in the Linear B syllabic script. Alaksandu, alternatively called ''Alakasandu'' or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland
Greenland is an autonomous territory in the Danish Realm, Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. Citizens of Greenland are full Danish nationality law, citizens of Denmark and European Union citizenship, of the European Union. Greenland is one of the Special territories of members of the European Economic Area#Overseas countries and territories, Overseas Countries and Territories of the European Union and is part of the Council of Europe. It is the List of islands by area, world's largest island, and lies between the Arctic Ocean, Arctic and Atlantic oceans, east of the Arctic Archipelago, Canadian Arctic Archipelago. It is the location of the northernmost point of land in the world; Kaffeklubben Island off the northern coast is the world's Northernmost point of land, northernmost undisputed point of land—Cape Morris Jesup on the mainland was thought to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The Arctic Ocean
A fish (: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are cold-blooded, their body temperature varying with the surrounding water, though some large active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communicate acoustically with each other, such as during courtship displays. The study of fish is known as ichthyology. The earliest fish appeared during the Cambrian as small filter feeders; they continued to evolve through the Paleozoic, diversifying into many forms. The earliest fish wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eumicrotremus
''Eumicrotremus'' is a genus of lumpfishes native to the northern oceans. The name for this genus comes from the Greek roots ''eu'' meaning "good", ''mikros'' meaning "small" or "little", and ''trema'' meaning "hole". Taxonomy ''Eumicrotremus'' was first proposed as a genus in 1862 by the American biologist Theodore Gill with Johan Christian Fabricius's ''Cyclopterus spinosus'' as its type species. The 5th edition of ''Fishes of the World'' does not recognize subfamilies within the Cyclopteridae, however, other authorities place this genus in the subfamily Eumicrotreminae. Species There are currently 18 recognized species in this genus: * ''Eumicrotremus andriashevi'' Perminov, 1936 ** ''Eumicrotremus andriashevi, E. a. aculeatus'' Olga Stepanovna Voskoboinikova, Voskoboinikova & Mikhail Valerievich Nazarkin, Nazarkin, 2015 (Andriashev's spicular-spiny pimpled lumpsucker)Voskoboinikova, O.S. & Nazarkin, M.V. (2015): Redescription of Andriashev’s spiny pimpled lumpsucker ''Eum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Konstantin Deryugin
Konstantin Mikhailovich Deryugin (: 10 February 1878 – 27 December 1938) was Russian Empire and Soviet oceanographer and marine biologist. He served as a professor of hydrology at Saint Petersburg State University, St. Petersburg University and took part in a number of oceanographic expeditions. Mount Deryugin and the Deryugin basin in the Sea of Okhotsk are named after him. Deryugin was born in Saint Petersburg, St. Petersburg where his father was a lawyer. He studied at the Pskov gymnasium and even as a young student he was interested in bird life. He published his first papers on the birds of Pskov Bay shortly after joining the university and studied under V.M. Shimkevich, graduating in the natural sciences in 1900. A year before his graduation, he took part in an expedition to the White Sea which made him interested in marine life and oceanography. He received a master's degree in 1909 and a doctorate in 1915 with study on the fauna of Kola Bay. He became a lecturer at St Pet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oikopleura
''Oikopleura'' is a genus of tunicates in the class Appendicularia (larvaceans). It forms a mucus house every four hours at 20 degrees Celsius. This house has a coarse mesh to keep out big particles, and a fine mesh that collects the small particles, down to the nanoplankton that includes (pelagic) bacteria. Abandoned mucus houses sink to the deep, collecting organic particles during their descent. They make an important contribution to marine snow, since ''Oikopleura'' is abundant and is a very active filterer, using powerful strokes of its tail. Its abundance is less obvious from preserved samples (that are usually analyzed) because the gelatinous body disappears in the preservation process while leaving hardly any trace. Species of ''Oikopleura'' have the smallest genomes in the animal kingdom, only about 75 Mb. ''Oikopleura'' contains bioluminescent species. About half of ''Oikopleura'' species are bioluminescent. Etymology The genus name comes from ''oikos'' (meaning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Of Okhotsk
The Sea of Okhotsk; Historically also known as , or as ; ) is a marginal sea of the western Pacific Ocean. It is located between Russia's Kamchatka Peninsula on the east, the Kuril Islands on the southeast, Japan's island of Hokkaido on the south, the island of Sakhalin along the west, and a stretch of eastern Siberian coast along the west and north. Its northeast corner is the Shelikhov Gulf. The sea is named for the port of Okhotsk, itself named for the Okhota River. Geography The Sea of Okhotsk covers an area of , with a mean depth of and a maximum depth of . It is connected to the Sea of Japan on either side of Sakhalin: on the west through the Sakhalin Gulf and the Gulf of Tartary; on the south through the La Pérouse Strait. In winter, navigation on the Sea of Okhotsk is impeded by ice floes. Ice floes form due to the large amount of freshwater from the Amur River, lowering the salinity of upper levels, often raising the freezing point of the sea surface. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chukchi Sea
The Chukchi Sea (, ), sometimes referred to as the Chuuk Sea, Chukotsk Sea or the Sea of Chukotsk, is a marginal sea of the Arctic Ocean. It is bounded on the west by the Long Strait, off Wrangel Island, and in the east by Point Barrow, Alaska, beyond which lies the Beaufort Sea. The Bering Strait forms its southernmost limit and connects it to the Bering Sea and the Pacific Ocean. The principal port on the Chukchi Sea is Uelen in Russia. The International Date Line crosses the Chukchi Sea from northwest to southeast. It is displaced eastwards to avoid Wrangel Island as well as the Chukotka Autonomous Okrug on the Russian mainland. Etymology In 1928, during hydrographic observations, the Norwegian polar explorer Harald Sverdrup discovered that the sea lying between Point Barrow and Wrangel Island was very different from the sea between the New Siberian Islands and Wrangel Island and therefore should be separated from the East Siberian Sea. It was decided to call the newly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Siberian Sea
The East Siberian Sea (; ) is a marginal sea in the Arctic Ocean. It is located between the Arctic Cape to the north, the coast of Siberia to the south, the New Siberian Islands to the west and Cape Billings, close to Chukchi Peninsula, Chukotka, and Wrangel Island to the east. This sea borders on the Laptev Sea to the west and the Chukchi Sea to the east. This sea is one of the least studied in the Arctic area. It is characterized by severe climate, low water salinity, and a scarcity of flora, fauna and human population, as well as shallow depths (mostly less than 50 m), slow sea currents, low tides (below 25 cm), frequent fogs, especially in summer, and an abundance of ice fields which fully melt only in August–September. The sea shores were inhabited for thousands of years by indigenous tribes of Yukaghirs, Chukchi people, Chukchi and then Evens and Evenks, which were engaged in fishing, hunting and reindeer husbandry. They were then absorbed by Yakuts and later by Russi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laptev Sea
The Laptev Sea () is a marginal sea of the Arctic Ocean. It is located between the northern coast of Siberia, the Taimyr Peninsula, Severnaya Zemlya, and the New Siberian Islands. Its northern boundary passes from the Arctic Cape to a point with co-ordinates of 79th parallel north, 79°N and 139th meridian east, 139°E, and ends at the Anisiy Cape. The Kara Sea lies to the west, the East Siberian Sea to the east. The sea is named after Russian explorers Dmitry Laptev and Khariton Laptev; formerly, it had been known under various names, the last being Nordenskiöld Sea (), after explorer Adolf Erik Nordenskiöld. The sea has a severe climate with temperatures below 0 °C (32 °F) for more than nine months per year; low water salinity; scarcity of flora, fauna, and human population; and shallow depths (mostly less than 50 meters). It is frozen most of the time, though generally clear in August and September. The sea shores were inhabited for thousands of years by indigeno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kara Sea
The Kara Sea is a marginal sea, separated from the Barents Sea to the west by the Kara Strait and Novaya Zemlya, and from the Laptev Sea to the east by the Severnaya Zemlya archipelago. Ultimately the Kara, Barents and Laptev Seas are all extensions of the Arctic Ocean north of Siberia. The Kara Sea's northern limit is marked geographically by a line running from Cape Kohlsaat in Graham Bell Island, Franz Josef Land, to Cape Molotov (Arctic Cape), the northernmost point of Komsomolets Island in Severnaya Zemlya. The Kara Sea is roughly long and wide with an area of around and a mean depth of . Its main ports are Novy Port and Dikson and it is important as a fishing ground although the sea is ice-bound for all but two months of the year. The Kara Sea contains the East-Prinovozemelsky field (an extension of the West Siberian Oil Basin), containing significant undeveloped petroleum and natural gas. In 2014, US government sanctions resulted in Exxon having unti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
