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Thor (1903)
''Thor'' was a Danish research vessel from 1903 to 1927. She was built by Edwards Brothers at North Shields, England in 1899 as a steam trawler. ''Thor'' conducted hydrographical and oceanographical research in the North Atlantic and the Mediterranean and helped locate the spawning grounds of the Icelandic cod. Most importantly, ''Thor'' conducted two expeditions to the Mediterranean Sea in 1908-1910 with Johannes Schmidt as cruise leader. The aim of the expeditions, funded by the Carlsberg Foundation, was to locate the spawning grounds of the European eel. Contrary to their expectations the expeditions found that fewer eel larvae ( leptocephals) were found the deeper they went into the Mediterranean, but they also grew larger. The logical conclusion was that the spawning grounds were not in the Mediterranean, but in the Atlantic Ocean. In a broader perspective, the greatest result of the two expeditions was the very large contribution to the general understanding of the oceano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copenhagen
Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan area has 2,057,142 people. Copenhagen is on the islands of Zealand and Amager, separated from Malmö, Sweden, by the Øresund strait. The Øresund Bridge connects the two cities by rail and road. Originally a Viking fishing village established in the 10th century in the vicinity of what is now Gammel Strand, Copenhagen became the capital of Denmark in the early 15th century. Beginning in the 17th century, it consolidated its position as a regional centre of power with its institutions, defences, and armed forces. During the Renaissance the city served as the de facto capital of the Kalmar Union, being the seat of monarchy, governing the majority of the present day Nordic region in a personal union with Sweden and Norway ruled by the Danis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Eel
The European eel (''Anguilla anguilla'') is a species of eel, a snake-like, catadromous fish. They are normally around and rarely reach more than , but can reach a length of up to in exceptional cases. Eels have been important sources of food both as adults (including jellied eels of East London) and as glass eels. Glass-eel fishing using basket traps has been of significant economic value in many river estuaries on the western seaboard of Europe. While the species' lifespan in the wild has not been determined, captive specimens have lived over 80 years. A specimen known as "the Brantevik Eel" lived for 155 years in the well of a family home in Brantevik, a fishing village in southern Sweden. Conservation status The European eel is a critically endangered species. Since the 1970s, the numbers of eels reaching Europe is thought to have declined by around 90% (possibly even 98%). Contributing factors include overfishing, parasites such as ''Anguillicola crassus'', bar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Vessels Of Denmark
Research is " creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error. These activities are characterized by accounting and controlling for biases. A research project may be an expansion on past work in the field. To test the validity of instruments, procedures, or experiments, research may replicate elements of prior projects or the project as a whole. The primary purposes of basic research (as opposed to applied research) are documentation, discovery, interpretation, and the research and development (R&D) of methods and systems for the advancement of human knowledge. Approaches to research depend on epistemologies, which vary considerably both within and between humanities and sciences. There are several forms of research: scientific, humanities, artistic, econom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alþýðublaðið
''Alþýðublaðið'' (Anglicised to ''Althydubladid'') was a newspaper of the Social Democratic Party (Iceland). It was published between 29 October 1919 and 2 October 1998. The paper was originally published six times a week, but ceased as a daily paper on 1 August 1997. Its last edition came out on 2 October 1998. References External linksPublished Issuesat the National and University Library of Iceland Landsbókasafn Íslands – Háskólabókasafn ( Icelandic: ; English: ''The National and University Library of Iceland'') is the national library of Iceland which also functions as the university library of the University of Iceland. The librar ... 1919 establishments in Iceland 1998 disestablishments in Iceland Defunct newspapers published in Iceland Mass media in Reykjavík Newspapers established in 1919 Publications disestablished in 1998 Daily newspapers published in Iceland {{Iceland-newspaper-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icelandic Coast Guard
The Icelandic Coast Guard (, or simply ) is the Icelandic defence service responsible for search and rescue, maritime safety and security surveillance, and law enforcement in the seas surrounding Iceland. The Coast Guard maintains the Iceland Air Defence System which conducts ground-based surveillance of Iceland's air space and operate Keflavik airbase. It is also responsible for hydrographic surveying and nautical charting. History Its origins can be traced to 1859, when the corvette ''Ørnen'' started patrolling Icelandic waters. In 1906, Iceland's first purposely built guard-ship, ''Islands Falk'', began operation. Iceland's own defense of its territorial waters began around 1920 and the Icelandic Coast Guard was formally founded on 1 July 1926. The first cannon was put on the trawler ''Þór'' in 1924 and on 23 June 1926 the first ship built for the Coast Guard, named ''Óðinn'', arrived in Iceland. Three years later, on 14 July 1929 the coastal defence ship ''Ægir'' w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Danish Navy
The Royal Danish Navy ( da, Søværnet) is the Naval warfare, sea-based branch of the Danish Defence force. The RDN is mainly responsible for maritime defence and maintaining the sovereignty of Denmark, Danish territorial waters (incl. Faroe Islands and Greenland). Other tasks include surveillance, search and rescue, Icebreaker, icebreaking, oil spill, oil spill recovery and prevention as well as contributions to international tasks and forces. During the period 1509–1814, when Denmark was in a union with Norway, the Danish Navy was part of the Royal Danish Navy (1510–1814), Dano-Norwegian Navy. Until the Copenhagenization (naval), copenhagenization of the navy in 1801, and again in 1807, the navy was a major strategic influence in the European geographical area, but since then its size and influence has drastically declined with a change in government policy. Despite this, the navy is now equipped with a number of large state-of-the-art vessels commissioned since the end of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelagic Zone
The pelagic zone consists of the water column of the open ocean, and can be further divided into regions by depth (as illustrated on the right). The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or water column between the surface of the sea and the bottom. Conditions in the water column change with depth: pressure increases; temperature and light decrease; salinity, oxygen, micronutrients (such as iron, magnesium and calcium) all change. Marine life is affected by bathymetry (underwater topography) such as the seafloor, shoreline, or a submarine seamount, as well as by proximity to the boundary between the ocean and the atmosphere at the ocean surface, which brings light for photosynthesis, predation from above, and wind stirring up waves and setting currents in motion. The pelagic zone refers to the open, free waters away from the shore, where marine life can swim freely in any direction unhindered by topographical constraints. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oceanography
Oceanography (), also known as oceanology and ocean science, is the scientific study of the oceans. It is an Earth science, which covers a wide range of topics, including ecosystem dynamics; ocean currents, waves, and geophysical fluid dynamics; plate tectonics and the geology of the sea floor; and fluxes of various chemical substances and physical properties within the ocean and across its boundaries. These diverse topics reflect multiple disciplines that oceanographers utilize to glean further knowledge of the world ocean, including astronomy, biology, chemistry, climatology, geography, geology, hydrology, meteorology and physics. Paleoceanography studies the history of the oceans in the geologic past. An oceanographer is a person who studies many matters concerned with oceans, including marine geology, physics, chemistry and biology. History Early history Humans first acquired knowledge of the waves and currents of the seas and oceans in pre-historic times. Observations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8°N. Scientific explorations of the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptocephalus
Leptocephalus (meaning "slim head") is the flat and transparent larva of the eel, marine eels, and other members of the superorder Elopomorpha. This is one of the most diverse groups of teleosts, containing 801 species in 4 orders, 24 families, and 156 genera. This group is thought to have arisen in the Cretaceous period over 140 million years ago.Inuoe, Jun, M. Miya, et al. “Mitogenomic evidence for the monophyly of elopomorph fishes (Teleostei) and the evolutionary origin of the leptocephalus larva.” Molecular Phylogenetics and Evolution 32 (2004): 274-286. Web. 2 Nov. 2012. Fishes with a leptocephalus larval stage include the most familiar eels such as the conger, moray eel, and garden eel as well as members of the family Anguillidae, plus more than 10 other families of lesser-known types of marine eels. These are all true eels of the order Anguilliformes. Leptocephali of eight species of eels from the South Atlantic Ocean were described by Meyer-Rochow The fishes of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlsberg Foundation
Carlsberg Foundation ( da, Carlsbergfondet) was founded by J. C. Jacobsen in 1876, by allocating some of his shares in the Carlsberg Brewery to fund and operate the Carlsberg Laboratory and the Museum of National History at Frederiksborg Palace. The foundation has since expanded to fund scientific research, to manage the Ny Carlsberg Glyptotek, and via the Tuborg Foundation to fund social works. it owned 30.3% of the shares in Carlsberg Group and controlled 74.2% of the voting power. History The foundation was started to run Carlsberg Laboratory. To finance its works the foundation received a portion of shares in Carlsberg Brewery. J.C. Jacobsen's wish was to create a foundation with firm obligations to the natural sciences and direct responsibility for the running of a corporate enterprise. In 1878 the foundation started to manage and fund the Museum of National History at Frederiksborg Palace. In 1882 after the death of J. C. Jacobsen the foundation inherited the remaining sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
