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Austromegabalanus Psittacus
''Austromegabalanus psittacus'', the giant barnacle or ' as it is known in Spanish, is a species of large barnacle native to the coasts of southern Peru, all of Chile and southern Argentina. It inhabits the littoral and intertidal zones of rocky shores and normally grows up to tall with a mineralized shell composed of calcite. The ''picoroco barnacle'' is used in Chilean cuisine and is one of the ingredients in curanto. Description ''Austromegabalanus psittacus'' is a large sessile barnacle that lives in groups on hard substrates. It has a tall cone-shaped carapace composed of twelve large plates made of calcite microcrystals which are cemented together. The basal disc is firmly cemented to a hard surface. It grows to a height of . There is an opening at the top with a hinged operculum through which the thoracic limbs known as "cirri" protrude. The general colour is dull white with purple and brown markings. Biology ''Austromegabalanus psittacus'' is a simultaneous hermap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilean Sea Urchin
''Loxechinus albus'' is an echinoderm of the family (biology), family Parechinidae, native to coastal southern South America, ranging from Ecuador, along the entire coasts of Peru and Chile, to Argentina, as well as the Falkland Islands. It is the only species in the genus ''Loxechinus''. It is known as the Chilean sea urchin or red sea urchin, but the latter name is typically used for the North Pacific ''Mesocentrotus franciscanus'' and it is not the only species of sea urchin in Chile (although it is the most common and widespread large sea urchins in that country). ''L. albus'' is found on rocky reefs and shores in the intertidal and subtidal zones to a depth of .Carolina J. Zagal and Consuelo Hermosilla C. (2007). ''Guía de Invertebrados marinos del sur de Chile''. Editorial Fantástico Sur, Punta Arenas, Chile Description ''Loxechinus albus'' is a fast-growing, relatively large sea urchin with a Test (biology), test diameter of up to , although the far southernmost populati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (animal)
An operculum is an anatomical feature, a stiff structure resembling a lid or a small door that opens and closes, and thus controls contact between the outside world and an internal part of an animal. Examples include: * An operculum (gastropod), a single lid that (in its most complete form) closes the aperture of the shell when the animal is retracted, and thus protects the internal soft parts of the animal that are not completely covered by the shell. The operculum lies on the top rear part of the foot. When the foot is retracted, the operculum is rotated 180° and closes the shell. * An operculum (fish), a flap that covers the gills in bony fishes and chimaeras. * The cover that rapidly opens a cnida of a cnidarian such as a jellyfish or a sea anemone. The lid may be a single hinged flap or three hinged flaps arranged like slices of pie. * In insects, the operculum is the name for one or more lids covering the tympanal cavity. A subgenital operculum is exhibited in phasmoidea an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carelmapu
Carelmapu (lit. from Mapudungun "Green Land") is a port and town ( es, pueblo) at the western end of Chacao Channel, southern Chile. Carelmapu was established by the Spanish in 1602 as San Antonio Ribera de Carelmapu following the Destruction of Seven Cities. In 1643 Carelmapu was sacked and its church vandalized by the Dutch corsair Hendrick Brouwer. On March 6, 1676 Carelmapu received the exhausted survivors of Pascual de Iriarte's expedition to the Strait of Magellan. Fort system During colonial times Carelmapu was the site of a small fort system made up of Fuerte de Carelmapu just west of Carelmapu, the sentinel outpost of Astillero and the battery of Coronel. The last two were not located in Carelmapu proper but further east along the northern shores of Chacao Channel The Chacao Channel ( es, Canal de Chacao) is located in Los Lagos Region, Chile and separates Chiloé Island from mainland Chile. The channel was created during the Quaternary glaciations by successive gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calbuco
Calbuco is a city and commune in southern Chile administered by the Municipality of Calbuco. Administratively Calbuco belongs to the Llanquihue Province of Los Lagos Region. The origin of the city was the Spanish Fort Calbuco founded in 1603, and became later an important fish market. The archaeological site of Monte Verde lies within the commune. Calbuco Island is part of the commune and contains the city of Calbuco. There are thirteen other islands in the commune: Huar, Puluqui, Chidhuapi, Tabón, Mayelhue, Lín, Quenu, Quihua, Huapi Abtao, Chaullín, Caicué o lagartija, Tautil and Queullín. History The settlement of Calbuco grew out of the fort ''Fuerte San Miguel de Calbuco'' which was founded in 1603 by Francisco Hernández Ortiz-Pizarro. Calbuco was the capital of Calbuco Department, Chiloé between 1834 and 1855, and of Carelmapu Department between 1855 and 1928. It was capital of Calbuco Department, Llanquihue between 1937 and 1975. Demographics According to the 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Lagos, Chile
Los Lagos () is a Chilean city and commune in Valdivia Province, Los Ríos Region. Demographics According to the 2002 census of the National Statistics Institute, Los Lagos spans an area of and has 20,168 inhabitants (10,370 men and 9,798 women). Of these, 9,479 (47%) lived in urban areas and 10,689 (53%) in rural areas. The population grew by 8.6% (1,604 persons) between the 1992 and 2002 censuses. It has a large German presence, like the entire Los Rios and Los Lagos Regions. Administration As a commune, Los Lagos is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2008-2012 alcalde is Samuel Torres Sepúlveda ( Ind.). Within the electoral divisions of Chile, Los Lagos is represented in the Chamber of Deputies by Enrique Jaramillo ( PDC) and Gastón Von Mühlenbrock (UDI) as part of the 54th electoral district, together with Panguipulli, Futrono, Lago Ranco, Río Bueno, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Littoral
The littoral zone or nearshore is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely inundated), to coastal areas that are permanently underwater, submerged — known as the ''foreshore'' — and the terms are often used interchangeably. However, the geographical meaning of ''littoral zone'' extends well beyond the intertidal zone to include all neritic waters within the bounds of continental shelves. Etymology The word ''littoral'' may be used both as a noun and as an adjective. It derives from the Latin language, Latin noun ''litus, litoris'', meaning "shore". (The doubled ''t'' is a late-medieval innovation, and the word is sometimes seen in the more classical-looking spelling ''litoral''.) Description The term has no single definition. What is regarded as the full extent of the littoral zone, and the way the littoral zone is divided into subregi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intertidal
The intertidal zone, also known as the foreshore, is the area above water level at low tide and underwater at high tide (in other words, the area within the tidal range). This area can include several types of Marine habitat, habitats with various species of Marine life, life, such as seastars, Sea urchin, sea urchins, and many species of coral with regional differences in biodiversity. Sometimes it is referred to as the ''littoral zone'' or ''shore, seashore'', although those can be defined as a wider region. The well-known area also includes steep rocky Cliff, cliffs, sandy Beach, beaches, Bog, bogs or wetlands (e.g., vast Mudflat, mudflats). The area can be a narrow strip, as in Pacific island, Pacific islands that have only a narrow tidal range, or can include many meters of shoreline where shallow beach slopes interact with high tidal excursion. The peritidal zone is similar but somewhat wider, extending from above the highest tide level to below the lowest. Organisms in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan Fernández Islands
The Juan Fernández Islands ( es, Archipiélago Juan Fernández) are a sparsely inhabited series of islands in the South Pacific Ocean reliant on tourism and fishing. Situated off the coast of Chile, they are composed of three main volcanic islands: Robinson Crusoe, Alejandro Selkirk and Santa Clara. The group is part of Insular Chile. The islands are primarily known for having been the home to the marooned sailor Alexander Selkirk for more than four years from 1704, which may have inspired Daniel Defoe's ''Robinson Crusoe''. Most of the archipelago's present-day inhabitants reside on Robinson Crusoe Island, and mainly in the capital, San Juan Bautista, located at Cumberland Bay on the island's north coast.The islands' area and population data retrieved from the 2012 census. The group of islands is part of Chile's Valparaíso Region (which also includes Easter Island) and, along with the Desventuradas Islands, forms one of the nine communes of Valparaíso Province. The is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filter Feeder
Filter feeders are a sub-group of suspension feeding animals that feed by straining suspended matter and food particles from water, typically by passing the water over a specialized filtering structure. Some animals that use this method of feeding are clams, krill, sponges, baleen whales, and many fish (including some sharks). Some birds, such as flamingos and certain species of duck, are also filter feeders. Filter feeders can play an important role in clarifying water, and are therefore considered ecosystem engineers. They are also important in bioaccumulation and, as a result, as indicator organisms. Fish Most forage fish are filter feeders. For example, the Atlantic menhaden, a type of herring, lives on plankton caught in midwater. Adult menhaden can filter up to four gallons of water a minute and play an important role in clarifying ocean water. They are also a natural check to the deadly red tide. Extensive article on the role of menhaden in the ecosystem and possible resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
