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Sula Reef
The Sula Reef ( no, Sularevet) is a deep-water coral reef off the coast of Trøndelag, Norway. It is located on the Sula Ridge, named after the island of Sula. The reef is generated by the coral Lophelia pertusa ''Lophelia pertusa'', the only species in the genus ''Lophelia'', is a cold-water coral that grows in the deep waters throughout the North Atlantic ocean, as well as parts of the Caribbean Sea and Alboran Sea. Although ''L. pertusa'' reefs are .... It has a length of about , and is wide. The thickness of the reef is up to . Until the discovery of the Røst Reef in 2002, the Sula Reef was the world's largest known Lophelia reef. The Sula Reef is closed to trawling. References Landforms of Trøndelag Coral reefs Reefs of the Atlantic Ocean Reefs of Norway {{Trøndelag-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deep-water Coral
The habitat of deep-water corals, also known as cold-water corals, extends to deeper, darker parts of the oceans than tropical corals, ranging from near the surface to the abyss, beyond where water temperatures may be as cold as . Deep-water corals belong to the Phylum Cnidaria and are most often stony corals, but also include black and thorny corals and soft corals including the Gorgonians (sea fans). Like tropical corals, they provide habitat to other species, but deep-water corals do not require zooxanthellae to survive. While there are nearly as many species of deep-water corals as shallow-water species, only a few deep-water species develop traditional reefs. Instead, they form aggregations called patches, banks, bioherms, massifs, thickets or groves. These aggregations are often referred to as "reefs," but differ structurally and functionally. Deep sea reefs are sometimes referred to as "mounds," which more accurately describes the large calcium carbonate skeleton that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trøndelag
Trøndelag (; sma, Trööndelage) is a county in the central part of Norway. It was created in 1687, then named Trondhjem County ( no, Trondhjems Amt); in 1804 the county was split into Nord-Trøndelag and Sør-Trøndelag by the King of Denmark-Norway, and the counties were reunited in 2018 after a vote of the two counties in 2016. The largest city in Trøndelag is the city of Trondheim. The administrative centre is Steinkjer, while Trondheim functions as the office of the county mayor. Both cities serve the office of the county governor; however, Steinkjer houses the main functions. Trøndelag county and the neighbouring Møre og Romsdal county together form what is known as Central Norway. A person from Trøndelag is called a ''trønder''. The dialect spoken in the area, trøndersk, is characterized by dropping out most vowel endings; see apocope. Trøndelag is one of the most fertile regions of Norway, with large agricultural output. The majority of the production ends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sula Ridge
Sula may refer to: Places Norway * Sula (island), an island in Sula municipality, Møre og Romsdal county * Sula, Møre og Romsdal, a municipality in Møre og Romsdal county * Sula, Solund, an island in Solund municipality, Vestland county * Ytre Sula (Solund), an island in Solund municipality, Vestland county * Sula, Trøndelag, an island group in Frøya municipality, Trøndelag county * Indre Sula and Ytre Sula, two mountains in Surnadal municipality, Møre og Romsdal county Other locations * Sula, Iran, a village in Ardabil Province, Iran * Sula, Montana, a census-designated place in the United States * Sula Island, an island in the Philippines * Sula Islands Regency, Indonesia * Sula (Dnieper), a tributary of the Dnieper in Ukraine * Sula (Mezen), a tributary of the Mezen in northern Russia * Sula (Pechora), a tributary of the Pechora in northern Russia * Sula Sgeir, an island group in Scotland * San Pedro Sula, a city in Honduras People Given name *Sula Benet (1903 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lophelia Pertusa
''Lophelia pertusa'', the only species in the genus ''Lophelia'', is a cold-water coral that grows in the deep waters throughout the North Atlantic ocean, as well as parts of the Caribbean Sea and Alboran Sea. Although ''L. pertusa'' reefs are home to a diverse community, the species is extremely slow growing and may be harmed by destructive fishing practices, or oil exploration and extraction. Biology ''Lophelia pertusa'' is a reef building, deep water coral, but it does not contain zooxanthellae, the symbiotic algae which lives inside most tropical reef building corals. ''Lophelia'' lives at a temperature range from about and at depths between and over , but most commonly at depths of , where there is no sunlight. As a coral, it represents a colonial organism, which consists of many individuals. New polyps live and build upon the calcium carbonate skeletal remains of previous generations. Living coral ranges in colour from white to orange-red; each polyp has up to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Røst Reef
The Rost Reef ( no, Røstrevet) is a deep-water coral reef off the coast of the Lofoten islands in Nordland county, Norway. The reef was discovered in 2002, about west of the island of Røstlandet. It extends over a length of about , and has a width of up to . The reef is generated by the coral ''Lophelia pertusa'', and is the world's largest known ''Lophelia'' reef. It is also the world's largest known deep-water coral reef. The authorities have introduced regulations to protect the reef against trawling. The temperature of the waters near the bottom of the Rost coral reef is 2 °C. WWF recognises the Røst Reef as a global natural heritage that merits protection through Marine Protected Area (MPA) status. Flora and fauna The reef is generated by the coral ''Lophelia pertusa'', and it hosts a profuse marine population that ranges from plankton to fish. Lophelia is associated with anemones, jellyfish and other animals. Lophelia are filter feeders and get all their energy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trawling
Trawling is a method of fishing that involves pulling a fishing net through the water behind one or more boats. The net used for trawling is called a trawl. This principle requires netting bags which are towed through water to catch different species of fishes or sometimes targeted species. Trawls are often called towed gear or dragged gear. The boats that are used for trawling are called trawlers or draggers. Trawlers vary in size from small open boats with as little as 30 hp (22 kW) engines to large factory trawlers with over 10,000 hp (7.5 MW). Trawling can be carried out by one trawler or by two trawlers fishing cooperatively ( pair trawling). Trawling can be contrasted with trolling. While trawling involves a net and is typically done for commercial usage, trolling instead involves a reed, rod and a bait or a lure and is typically done for recreational purposes. Trawling is also commonly used as a scientific sampling, or survey, method. Bottom vs. midwater traw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Institute Of Marine Research
The Norwegian Institute of Marine Research ( no, Havforskningsinstituttet) is a national consultative research institute which is owned by the Ministry of Fisheries and Coastal Affairs. The institute performs research and provides advisory services in the fields of marine ecosystems and aquaculture. With a staff of almost 1100, the Institute of Marine Research is the largest centre of marine research in Norway, and among the largest in Europe. The institute has a highly qualified scientific staff, high-technology research stations and laboratories in Austevoll, Bergen (head office), Flødevigen (Arendal) and Matre, a department in Tromsø and several vessels. The primary responsibility of the Institute of Marine Research is to provide advice to national authorities, society and industry regarding questions related to the ecosystems of the Barents Sea, the Norwegian Sea, the North Sea and the Norwegian coastal zone and in the field of aquaculture. The institute is heavily engaged ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Trøndelag
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral Reefs
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and jellyfish. Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral. Most reefs grow best in warm, shallow, clear, sunny and agitated water. Coral reefs first appeared 485 million years ago, at the dawn of the Early Ordovician, displacing the microbial and sponge reefs of the Cambrian. Sometimes called ''rainforests of the sea'', shallow coral reefs form some of Earth's most diverse ecosystems. They occupy less than 0.1% of the world's ocean area, about half the area of France, yet they provide a home for at least 25% of all marine species, including fish, mollusks, worms, crustaceans, echinoderms, spon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reefs Of The Atlantic Ocean
A reef is a ridge or shoal of rock, coral or similar relatively stable material, lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic component, abiotic processes—deposition (geology), deposition of sand, wave erosion planing down rock outcrops, etc.—but there are also reefs such as the coral reefs of tropical waters formed by biotic component, biotic processes dominated by corals and coralline algae, and artificial reefs such as shipwrecks and other anthropogenic underwater structures may occur intentionally or as the result of an accident, and sometimes have a designed role in enhancing the physical complexity of featureless sand bottoms, to attract a more diverse assemblage of organisms. Reefs are often quite near to the surface, but not all definitions require this. Earth's largest coral reef system is the Great Barrier Reef in Australia, at a length of over . Biotic There is a variety of biotic reef types, including oyster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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