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Gigantactis Paxtoni
''Gigantactis paxtoni'' (common name: Paxton's whipnose) is a species of fish in the whipnose angler (Gigantactinidae) family, first described in 1981 by Erik Bertelsen, Theodore Wells Pietsch III and Robert J. Lavenberg. The species epithet, ''paxtoni'', honours John Paxton of the Australian Museum. The species is known from 18 females, most of which were caught off New Zealand and the south-east coast of Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ... at depths of . It differs from other species in this genus by having filaments on the dorsal surface of the head just behind the base of the illicium (the long filament looking like an angler's line and lure) and by its body shape, and large teeth. References Further reading * *Stewart, A.L. and Pietsch, T.W. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erik Bertelsen
Erik Bertelsen (8 August 1912 – 18 March 1993) was a Danish ichthyologist, who specialised in deep sea fish. The fish, '' Diaphus bertelseni'' is named in his honour. He studied biology at the University of Copenhagen (1930 -) and in 1937 started work on the Dana collection at Charlottenlund Castle and also for the Danish Fisheries Investigation (DFI). He earned a doctorate in 1951 with his dissertation, ''The ceratioid fishes. Ontology, taxonomy, distribution and biology''. He was director of DFI from 1958 to 1971, when he resigned to work at the zoological museum of the University of Copenhagen, where with fewer administrative duties he was able to concentrate on his research on deep sea fish. In 1961 he was made a Knight of the Order of the Dannebrog. He authored over 50 taxa. See :Taxa named by Erik Bertelsen and wikidata query His zoological author abbreviation is Bertelsen. In 1932 he participated in a fisheries biology research trip to the Faroe Islands and Iceland. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Wells Pietsch III
Theodore Wells Pietsch III (born March 6, 1945) is an American systematist and evolutionary biologist especially known for his studies of anglerfishes. Pietsch has described 72 species and 14 genera of fishes and published numerous scientific papers focusing on the relationships, evolutionary history, and functional morphology of teleosts, particularly deep-sea taxa. For this body of work, Pietsch was awarded the Robert H. Gibbs Jr. Memorial Award in Systematic Ichthyology by the American Society of Ichthyologists and Herpetologists in 2005. Pietsch has spent most of his career at the University of Washington in Seattle as a professor mentoring graduate students, teaching ichthyology to undergraduates, and curating the ichthyology collections of the UW Burke Museum of Natural History and Culture. His zoological author abbreviation is Pietsch. See also :Taxa named by Theodore Wells Pietsch III and query for taxa he authored Education Pietsch attended John Adams High School in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert J
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of '' Hruod'' ( non, Hróðr) "fame, glory, honour, praise, renown" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin. It is also in use as a surname. Another commonly used form of the name is Rupert. After becoming widely used in Continental Europe it entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta. The Italian, Portuguese, and Spanish form is Roberto. Robert is also a common name in many Germanic languages, including English, German, Dutch, Norwegian, Swedish, Scots, Danish, and Icelandic. It can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whipnose Angler
The whipnose anglers are a family, Gigantactinidae, of deep-sea anglerfishes. The family name is derived from the Greek words ''gigas'', meaning "big", and ''aktis'', meaning "ray". They are distinguished by the presence of a remarkably long lure (the illicium), which may be longer than the body of the fish. Description Whipnose angler females are easily recognizable because they have an elongated shape and a small head. Their illicium length is an average of one to four times the size of their standard length. The family includes 24 species in two genera. Like the other ceratioid groups, little is known about their ecology, but this species lives a benthic lifestyle while possibly swimming upside down while it is foraging. They tend to drift motionless to lure in their prey. Species of this family show extreme sexual dimorphism, with males being dwarves and females significantly larger. The maximum female size is 43.5 cm, with the corresponding male being 2.2 cm. Loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Paxton (ichthyologist)
John Richard Paxton (born 1938) is a United States-born Australian ichthyologist, who spent most of his career at the Australian Museum. He has a particular research interest in lanternfishes (family Myctophidae) and other deep-sea fishes. Paxton is a founding member of the Australian Society for Fish Biology and received the society's K. Radway Allen Award in 1997. Early life John Richard Paxton was born in 1938 and grew up in Los Angeles, California. He completed his undergraduate and postgraduate studies at the University of Southern California, beginning with a BA in Zoology (1960) and an MSc in Biology (1965). His master's research investigated the ecology and vertical distribution of lanternfishes (family Myctophidae) in a deep-sea basin off southern California. Paxton completed his PhD under supervisor Jay Savage, on the osteology and evolutionary history of lanternfishes, and graduated in 1968. Career Paxton spent most of his career at the Australian Museum in Sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Museum
The Australian Museum is a heritage-listed museum at 1 William Street, Sydney central business district, New South Wales, Australia. It is the oldest museum in Australia,Design 5, 2016, p.1 and the fifth oldest natural history museum in the world, with an international reputation in the fields of natural history and anthropology. It was first conceived and developed along the contemporary European model of an encyclopedic warehouse of cultural and natural history and features collections of vertebrate and invertebrate zoology, as well as mineralogy, palaeontology and anthropology. Apart from exhibitions, the museum is also involved in Indigenous studies research and community programs. In the museum's early years, collecting was its main priority, and specimens were commonly traded with British and other European institutions. The scientific stature of the museum was established under the curatorship of Gerard Krefft, himself a published scientist. The museum is located at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The Indian Ocean
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The Pacific Ocean
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deep Sea Fish
Deep-sea fish are fish that live in the darkness below the sunlit surface waters, that is below the epipelagic or photic zone of the sea. The lanternfish is, by far, the most common deep-sea fish. Other deep sea fishes include the flashlight fish, cookiecutter shark, bristlemouths, anglerfish, viperfish, and some species of eelpout. Only about 2% of known marine species inhabit the pelagic environment. This means that they live in the water column as opposed to the benthic organisms that live in or on the sea floor. Deep-sea organisms generally inhabit bathypelagic (1000–4000m deep) and abyssopelagic (4000–6000m deep) zones. However, characteristics of deep-sea organisms, such as bioluminescence can be seen in the mesopelagic (200–1000m deep) zone as well. The mesopelagic zone is the disphotic zone, meaning light there is minimal but still measurable. The oxygen minimum layer exists somewhere between a depth of 700m and 1000m deep depending on the place in the ocean. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
