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Monchique Islet
Monchique Islet ( pt, Ilhéu do Monchique) is a small uninhabited islet off the coast of the island of Flores, west of the village of Fajã Grande, in the western part of the Portuguese archipelago of the Azores. It is the westernmost point of Portugal and, if considered part of Europe (although it sits on the North American Plate), is Europe's westernmost point as well. Approachable only by boat, the deep bay provides opportunities for scuba diving during the day in the summer. The islet and the waters around it are protected for their rich biodiversity. Ninety-six species of flora and fauna have been identified congregating in the waters near the islet, including brown algae, limpets, barnacles, and Mediterranean rainbow wrasse. History Historically, the islet functioned as an astronomical or celestial navigational guide and reference mark for mariners, who calibrated their navigational equipment by referencing the islet on long Atlantic crossings. Its unique geological forma ... [...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] |
Newspaper
A newspaper is a periodical publication containing written information about current events and is often typed in black ink with a white or gray background. Newspapers can cover a wide variety of fields such as politics, business, sports and art, and often include materials such as opinion columns, weather forecasts, reviews of local services, obituaries, birth notices, crosswords, editorial cartoons, comic strips, and advice columns. Most newspapers are businesses, and they pay their expenses with a mixture of subscription revenue, newsstand sales, and advertising revenue. The journalism organizations that publish newspapers are themselves often metonymically called newspapers. Newspapers have traditionally been published in print (usually on cheap, low-grade paper called newsprint). However, today most newspapers are also published on websites as online newspapers, and some have even abandoned their print versions entirely. Newspapers developed in the 17th century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islets Of The Azores
An islet is a very small, often unnamed island. Most definitions are not precise, but some suggest that an islet has little or no vegetation and cannot support human habitation. It may be made of rock, sand and/or hard coral; may be permanent or tidal (i.e. surfaced reef or seamount); and may exist in the sea, lakes, rivers or any other sizeable bodies of water. Definition As suggested by its origin ''islette'', an Old French diminutive of "isle", use of the term implies small size, but little attention is given to drawing an upper limit on its applicability. The World Landforms website says, "An islet landform is generally considered to be a rock or small island that has little vegetation and cannot sustain human habitation", and further that size may vary from a few square feet to several square miles, with no specific rule pertaining to size. Other terms * Ait (/eɪt/, like eight) or eyot (/aɪ(ə)t, eɪt/), a small island. It is especially used to refer to river i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayak
A kayak is a small, narrow watercraft which is typically propelled by means of a double-bladed paddle. The word kayak originates from the Greenlandic word ''qajaq'' (). The traditional kayak has a covered deck and one or more cockpits, each seating one paddler. The cockpit is sometimes covered by a spray deck that prevents the entry of water from waves or spray, differentiating the craft from a canoe. The spray deck makes it possible for suitably skilled kayakers to roll the kayak: that is, to capsize and right it without it filling with water or ejecting the paddler. ] Some modern boats vary considerably from a traditional design but still claim the title "kayak", for instance in eliminating the cockpit by seating the paddler on top of the boat ("sit-on-top" kayaks); having inflated air chambers surrounding the boat; replacing the single hull with twin hulls; and replacing paddles with other human-powered propulsion methods, such as foot-powered rotational propellers and "fli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Cruz Das Flores (parish)
Santa Cruz das Flores is a civil parish in the municipality of Santa Cruz das Flores, Azores, Portugal. The population in 2021 was 1,552, in an area of 39.68 km². It is the largest population center in the Western Group of the Portuguese Azores, concentrating all governmental and judicial services of the island. In addition, it is the site of the only secondary school, the civil airport, and the centers of health and commerce. History The first attempts to settle Flores occurred in the area of Caveira where Willem van der Haegen and his supporters disembarked looking for the mythical ''Ilhas Cassitérides''. After these colonists abandoned their settlement new pioneers in 1508 and 1510 attempted to succeed in the area of the present Santa Cruz. This settlement was helped by the installation of the Franciscan Convent (São Boaventura), now a museum. Its construction began in 1642, two years after Portugal's Restoration of Independence, under the initiative of local Flor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flores Airport
Flores Airport ( pt, Aeroporto das Flores) is a regional airport on the island of Flores in the Portuguese archipelago of the Azores. It is located along the eastern coast, bisecting the regional capital of Santa Cruz das Flores into two-halves: from the Porto of São Pedro the runway is aligned north–south to the area around Porto dos Poços. The airport divides the area of Monte and Pau Pique (in the headlands) and the central community of Santa Cruz das Flores (located on a ''fajã'', or geological debris field, from the Porto do Boqueirão to Porto Velho) along the eastern coast. History The first need for an airport/airfield on the island of Flores was recognized by the Marquis Francesco de Pinedo, colonel of the Italian Air Force, who was forced to land from the island of Flores, during his attempt to reach Newfoundland. His Savoia-Marchetti S.55 hydroplane, baptized ''Santa Maria II'', was rescued by the Portuguese fishing boat ''Infantes de Sagres'' (heading for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megabalanus Tintinnabulum
''Megabalanus tintinnabulum'' is a species of large barnacle in the family Balanidae. It is the type species of the genus. The specific name comes from the Latin ' meaning a handbell and probably refers to the fact that small groups of barnacles resemble clusters of miniature bells. Taxonomy When Carl Linnaeus first described this species in 1758, he named it ''Balanus tintinnabulum''. The lectotype was depicted by Georg Eberhard Rumphius in 1705, the type locality being Ambon, Indonesia. In a monograph on barnacles in 1854, Charles Darwin described the species as being very variable and assigned it to Section A of the genus ''Balanus'', characterised by having the parietes, basis, and radii (different plates in the shell wall) permeated by minute pores. In 1916, Henry Augustus Pilsbry elevated ''Balanus tintinnabulum'' to subspecies rank and in subsequent years a number of varieties were described. Later it was placed in the subgenus ''Megabalanus'' and in 1976, Newman and Ros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megabalanus Azoricus
''Megabalanus azoricus'', the Azorean barnacle, is a species of large barnacle in the family Balanidae. It is endemic to Macaronesia: the Azores, Madeira, the Canary Islands, and Cape Verde. It is the largest and third most common shallow water barnacle of the Azores, where it is heavily exploited for food and has a high commercial value since the colonization of the islands. It was included in the 100 species for priority management within Macaronesia. It is a thoracopodal filter feeder and the majority are hermaphrodites. It is more abundant in the first on the low intertidal and infralittoral rocky shores. The empty shells of the barnacles are a vital habitat for the blennies '' Parablennius ruber'', '' P. incognitus'' and '' Coryphoblennius galerita'' as they provide shelter and substrata for egg deposition during reproduction. A large number of invertebrate species also use the empty shells. Although present throughout the archipelago, it is more abundant in the eastern isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patella Aspera
''Patella aspera'' is a species of limpet, a type of sea snail in the family Patellidae. Long considered to be a subspecies of '' Patella ulyssiponensis'', genetic evidence supports its recognition as a separate species.Weber, L. I., and S. J. Hawkins. (2005)''Patella aspera'' and ''P. ulyssiponensis'': genetic evidence of speciation in the North-east Atlantic.''Marine Biology'' 147(1) 153–162. It is native to Macaronesia. It is known by the common name Azorean limpet, and its local name is ''lapa brava''.Background document for Azorean limpet, ''Patella aspera''. OSPAR Convention Biodiversity Series 2010. Description ''Patella aspera'' has a pentagonal, flattened shell with deeply indented margins. It is sculpted with numerous, semi-regula ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patella Ulyssiponensis
''Patella ulyssiponensis'', common name the rough limpet, or China limpet is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Patellidae, one of the families of true limpets. Despite its common name, the China limpet is found throughout the Eastern North Atlantic and the Mediterranean. Compared with the common limpet, ''Patella vulgata'', the rough limpet has a similar shell (maximum size 50mm long x 40 mm wide x 20 mm high, apex closer to the front of the animal/ anterior than to the back/ posterior) but with radiating ridges that are finer and which alternate 1-ridge/ 3-ridges around the shell in a distinct pattern. The interior of the shell is often tinged orange towards its apex. The foot is a cream-orange color, and the dozens of pallial tentacles are translucent and colorless, arranged in two series of different sizes. No other characteristics of body structure or shell morphology distinguish it from ''P. vulgata'', to which i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictyotales
Dictyotales is a large order in the brown algae (class Phaeophyceae). Members of this order generally prefer warmer waters than other brown algae. One genus in this order is calcareous, '' Padina'', the only calcareous member of this phylum. ''Dictyota'' dominates 70% of the benthos biomass in the Florida Keys reef tract. The successful spread of this alga is due in part to its ability to asexually reproduce from fragments created by " biotic and abiotic In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Abiotic factors and the phenomena associated with them under ... disturbances". References Further reading * * * Brown algae orders Monotypic eukaryote orders {{Phaeophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qualitative Variation
An index of qualitative variation (IQV) is a measure of statistical dispersion in nominal distributions. There are a variety of these, but they have been relatively little-studied in the statistics literature. The simplest is the variation ratio, while more complex indices include the information entropy. Properties There are several types of indices used for the analysis of nominal data. Several are standard statistics that are used elsewhere - range, standard deviation, variance, mean deviation, coefficient of variation, median absolute deviation, interquartile range and quartile deviation. In addition to these several statistics have been developed with nominal data in mind. A number have been summarized and devised by Wilcox , , who requires the following standardization properties to be satisfied: * Variation varies between 0 and 1. * Variation is 0 if and only if all cases belong to a single category. * Variation is 1 if and only if cases are evenly divided across all cat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
