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Dardanus Calidus
''Dardanus calidus'' is a species of hermit crab from the East Atlantic (Portugal to Senegal) and Mediterranean Sea. Description ''D. calidus'' can grow to a length of . It uses large gastropod shells, such as those of '' Tonna galea'' and ''Charonia'' species, which it often decorates with one or more sea anemones of the species ''Calliactis parasitica''. The relationship with the anemone is truly symbiotic, since the anemone gains scraps of food from the hermit crab, while the crab benefits from the anemone's stinging tentacles deterring predators. Distribution and ecology ''Dardanus calidus'' is a scavenger, feeding on decaying matter from the sea bed. It has been collected from depths greater than , but is more typically found in shallower water. Taxonomic history ''Dardanus calidus'' was first described by Antoine Risso in 1827, under the name ''Pagurus calidus'', and was transferred to the genus '' Dardanus'' by Jacques Forest Jacques Forest (14 June 1920 – 16 Febr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charonia Tritonis
''Charonia tritonis'', common name the Triton's trumpet or the giant triton, is a species of very large sea snail, a marine gastropod mollusc in the family Charoniidae, the tritons. Reaching up to two feet (or 60 cm) in shell length this is one of the biggest mollusks in the coral reef. Distribution This species is found throughout the Indo-Pacific Oceans, Red Sea included. Description Feeding habits ''C. tritonis'' is one of the few animals to feed on the crown-of-thorns starfish, ''Acanthaster planci''. Occasional plagues of this large and destructive starfish have killed extensive areas of coral on the Great Barrier Reef of Australia and the western Pacific reefs. The triton has been described as tearing the starfish to pieces with its file-like radula. Human use The shell is well known as a decorative object, and is sometimes modified for use as a trumpet (such as the Japanese ''horagai'', the Maldivian '' sangu'' or the Māori ''pūtātara''). Much deb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Predator
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually). It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators. Predators may actively search for or pursue prey or wait for it, often concealed. When prey is detected, the predator assesses whether to attack it. This may involve ambush or pursuit predation, sometimes after stalking the prey. If the attack is successful, the predator kills the prey, removes any inedible parts like the shell or spines, and eats it. Predators are adapted and often highly specialized for hunting, with acute senses such as vision, hearing, or smell. Many predatory animals, both vertebrate and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustaceans Of The Atlantic Ocean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermit Crabs
Hermit crabs are anomuran decapod crustaceans of the superfamily Paguroidea that have adapted to occupy empty scavenged mollusc shells to protect their fragile exoskeletons. There are over 800 species of hermit crab, most of which possess an asymmetric abdomen concealed by a snug-fitting shell. Hermit crabs' soft (non-calcified) abdominal exoskeleton means they must occupy shelter produced by other organisms or risk being defenseless. The strong association between hermit crabs and their shelters has significantly influenced their biology. Almost 800 species carry mobile shelters (most often calcified snail shells); this protective mobility contributes to the diversity and multitude of crustaceans found in almost all marine environments. In most species, development involves metamorphosis from symmetric, free-swimming larvae to morphologically asymmetric, benthic-dwelling, shell-seeking crabs. Such physiological and behavioral extremes facilitate a transition to a sheltered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulletin Of Marine Science
The ''Bulletin of Marine Science'' is a peer-reviewed scientific journal published by the Rosenstiel School of Marine and Atmospheric Science of the University of Miami. The journal was established in 1951 as the ''Bulletin of Marine Science of the Gulf and Caribbean'' and obtained its current name in 1965. All content is available electronically, and for issues older than three years, free of charge. Scope The ''Bulletin of Marine Science'' covers marine biology, ecology, biological oceanography, fisheries management, marine policy, marine geology, marine geophysics, marine chemistry, atmospheric chemistry, meteorology Meteorology is a branch of the atmospheric sciences (which include atmospheric chemistry and physics) with a major focus on weather forecasting. The study of meteorology dates back millennia, though significant progress in meteorology did no ..., and physical oceanography. References External links * {{Official website, http://bullmarsci.o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward J
Edward is an English given name. It is derived from the Anglo-Saxon name ''Ēadweard'', composed of the elements '' ēad'' "wealth, fortune; prosperous" and '' weard'' "guardian, protector”. History The name Edward was very popular in Anglo-Saxon England, but the rule of the Norman and Plantagenet dynasties had effectively ended its use amongst the upper classes. The popularity of the name was revived when Henry III named his firstborn son, the future Edward I, as part of his efforts to promote a cult around Edward the Confessor, for whom Henry had a deep admiration. Variant forms The name has been adopted in the Iberian peninsula since the 15th century, due to Edward, King of Portugal, whose mother was English. The Spanish/Portuguese forms of the name are Eduardo and Duarte. Other variant forms include French Édouard, Italian Edoardo and Odoardo, German, Dutch, Czech and Romanian Eduard and Scandinavian Edvard. Short forms include Ed, Eddy, Eddie, Ted, Teddy and Ned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacean Larvae
Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form. Each of the stages is separated by a moult, in which the hard exoskeleton is shed to allow the animal to grow. The larvae of crustaceans often bear little resemblance to the adult, and there are still cases where it is not known what larvae will grow into what adults. This is especially true of crustaceans which live as benthic adults (on the sea bed), more-so than where the larvae are planktonic, and thereby easily caught. Many crustacean larvae were not immediately recognised as larvae when they were discovered, and were described as new genera and species. The names of these genera have become generalised to cover specific larval stages across wide groups of crustaceans, such as ''zoea'' and ''nauplius''. Other terms described forms which are only found in particular groups, such as the ''glaucothoe'' of hermit crabs, or the ''phyllosoma'' of slippe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Forest
Jacques Forest (14 June 1920 – 16 February 2012) was a French carcinologist. Biography Born in Créteil on 14 June 1920, Jacques Forest grew up in Maubeuge. He served in the army for a year during the Second World War, and went on to study at the University of Lille after demobilisation. After graduating, he worked for several years for the ' ("scientific and technical office for marine fisheries"; now part of IFREMER); his early publications concerned a variety of fish species. In 1949, he joined the ' in Paris, where he would remain for the rest of his career. In association with Jean-Louis Fage, Forest began working on hermit crabs, and rapidly became an expert; he described over 70 new species in the family Diogenidae, for example. He also published on other Decapoda, including crabs and, most significantly, ''Neoglyphea inopinata'', a living species of a group previously considered long-since extinct. Forest was also an enthusiastic field biologist, and took part in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dardanus (crustacean)
''Dardanus'' is a genus of hermit crabs belonging to the Diogenidae family. List of species This genus contains the following species: *'' Dardanus arrosor'' (Herbst, 1796) *'' Dardanus aspersus'' (Berthold, 1846) *'' Dardanus australis'' Forest & Morgan, 1991 *'' Dardanus brachyops'' Forest, 1963 *''Dardanus calidus'' (Risso, 1827) *'' Dardanus callichela'' Cook, 1989 *'' Dardanus corrugatus'' Cook, 1989 *'' Dardanus crassimanus'' (H. Milne-Edwards, 1836) *'' Dardanus dearmatus'' Henderson, 1888 *'' Dardanus deformis'' H. Milne-Edwards, 1836 *'' Dardanus fucosus'' Biffar & Provenzano, 1972 *'' Dardanus gemmatus'' (H. Milne-Edwards, 1836) *'' Dardanus guttatus'' (Olivier, 1812) *'' Dardanus hessii'' (Miers, 1884) *'' Dardanus imbricatus'' (H. Milne-Edwards, 1848) *'' Dardanus imperator'' (Miers, 1881) *'' Dardanus impressus'' (De Haan, 1849) *'' Dardanus insignis'' (de Saussure, 1858) *'' Dardanus jacquesi'' Asakura & Hirayama, 2002 *'' Dardanus janethaigae'' Ayon & Hendrickx, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taylor & Francis
Taylor & Francis Group is an international company originating in England that publishes books and academic journals. Its parts include Taylor & Francis, Routledge, F1000 (publisher), F1000 Research or Dovepress. It is a division of Informa, Informa plc, a United Kingdom–based publisher and conference company. Overview The company was founded in 1852 when William Francis (chemist), William Francis joined Richard Taylor (editor), Richard Taylor in his publishing business. Taylor had founded his company in 1798. Their subjects covered agriculture, chemistry, education, engineering, geography, law, mathematics, medicine, and social sciences. Francis's son, Richard Taunton Francis (1883–1930), was sole partner in the firm from 1917 to 1930. In 1965, Taylor & Francis launched Wykeham Publications and began book publishing. T&F acquired Hemisphere Publishing in 1988, and the company was renamed Taylor & Francis Group to reflect the growing number of Imprint (trade name), imp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Bed
The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates mid-ocean ridges along the center line of major ocean basins, where the seabed is slightly shallower than the surrounding abyssal plain. From the abyssal plain, the seabed slopes upward toward the continents and becomes, in order from deep to shallow, the continental rise, slope, and shelf. The depth within the seabed itself, such as the depth down through a sediment core, is known as the “depth below seafloor.” The ecological environment of the seabed and the deepest waters are collectively known, as a habitat for creatures, as the “benthos.” Most of the seabed throughout the world's oceans is covered in layers of marine sediment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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