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Arctica or Arctida was an ancient continent which formed approximately 2.565 billion years ago in the Neoarchean era. It was made of Archaean cratons, including the Siberian Craton, with its Anabar/Aldan shields in Siberia, and the Slave, Wyoming, Superior, and North Atlantic cratons in North America. Arctica was named by Rogers 1996 because the Arctic Ocean formed by the separation of the North American and Siberian cratons. Russian geologists writing in English call the continent "Arctida" since it was given that name in 1987, alternatively the Hyperborean craton, in reference to the hyperboreans in Greek mythology.
Salix arctica, the Arctic willow, is a tiny creeping willow. It is adapted to survive in Arctic conditions, specifically tundras.
Hiatella arctica, known as the wrinkled rock-borer, the arctic hiatella or the arctic saxicave, is a species of saltwater clam, a marine bivalve mollusc in the family Hiatellidae. The white shell of this mollusc is thick and more or less rectangular, but generally irregular in shape. It is up to 45 mm long.
Royal Arctic Line A/S (RAL) or Royal Arctic is a seaborne freight company in Greenland, wholly owned by the Government of Greenland. It was formed in 1993, and is headquartered in Nuuk.
Gynaephora groenlandica, the Arctic woolly bear moth, is an erebid moth native to the High Arctic in the Canadian archipelago, Greenland and Wrangel Island in Russia. It is known for its slow rate of development, as its full caterpillar life cycle may extend up to 7 years, with moulting occurring each spring. This species remains in a larval state for the vast majority of its life. Rare among Lepidoptera, it undergoes an annual period of diapause that lasts for much of the calendar year, as G. groenlandica is subject to some of the longest, most extreme winters on Earth. In this dormant state, it can withstand temperatures as low as −70 °C. The Arctic woolly bear moth also exhibits basking behavior, which aids in temperature regulation and digestion and affects both metabolism and oxygen consumption. Females generally do not fly, while males usually do.
Psychroglaciecola arctica is a Gram-negative, facultatively methylotrophic, aerobic and motile bacterium from the genus of Psychroglaciecola with a single polar flagellum which has been isolated from soil from glacial foreland near Ny-Ålesund in Norway.
Marinomonas arctica is a Gram-negative, psychrotolerant and motile bacterium from the genus of Marinomonas which has been isolated from sea-ice from the Canadian Basin from the Arctic Ocean.
Shewanella arctica is a Gram-negative and anaerobic bacterium from the genus of Shewanella which has been isolated from sediment from the Arctic.
Roseomonas is a genus of Gram negative bacteria. The cells are coccoid rods when viewed microscopically. Certain species are known to be opportunistic infections for humans.
Roseomonas arctica is a species of Gram negative, strictly aerobic, coccobacilli-shaped, psychrotrophic, light red-colored bacteria. It was first isolated from soil in the glacier foreland of Ny-Ålesund in Svalbard, Norway. The species name refers to the Arctic region from which it was first isolated.
Roseomonas arcticisoli is a species of Gram negative, strictly aerobic, coccobacilli-shaped, light red-colored bacteria. It was first isolated from tundra soil near Ny-Ålesund in Svalbard, Norway. The species name refers to the Arctic soil from which it was first isolated.
Colwellia arctica is a Gram-negative and facultatively anaerobic bacterium from the genus of Colwellia which has been isolated from marine sediment from the Arctic.
Planktotalea is a genus of bacteria from the family of Rhodobacteraceae.
Planktotalea frisia is a heterotrophic and aerobic bacterium from the genus of Planktotalea which has been isolated from seawater from the North Sea in Germany.
Planktotalea lamellibrachiae is a Gram-negative, aerobic, non-spore-forming and rod-shaped bacterium from the genus of Planktotalea which has been isolated from a tubeworm from Kagoshima Bay in Japan.
Paraglaciecola arctica is a Gram-negative, psychrotolerant and motile bacterium from the genus of Paraglaciecola which has been isolated from sediments from the Arctic Ocean.
Terrimonas arctica is a Gram-negative, rod-shaped, aerobic and non-motile bacterium from the genus of Terrimonas which has been isolated from soil from the Arctic tundra from Norway.
Oceanisphaera arctica is a Gram-negative, coccoid and non-motile bacterium from the genus of Oceanisphaera which has been isolated from marine sediments from Kongsfjorden.
Algimonas arctica is a Gram-negative and aerobic bacterium from the genus of Algimonas which has been isolated from sand from the Arctic.
Formosa arctica is a Gram-negative, chemoheterotrophic and strictly aerobic bacterium from the genus of Formosa which has been isolated from seawater from the Arctic Ocean.
References
- 1 2 Parte, A.C. "Planktotalea". LPSN .
- 1 2 "Planktotalea arctica". www.uniprot.org.
- ↑ Baek, K; Choi, A; Lee, YM; Lee, HK; Cho, JC (September 2017). "Planktotalea arctica sp. nov., isolated from Arctic seawater". International Journal of Systematic and Evolutionary Microbiology. 67 (9): 3501–3505. doi: 10.1099/ijsem.0.002152 . PMID 28840817.