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Ambophthalmos Angustus
The pale toadfish (''Ambophthalmos angustus'', previously classified as ''Neophrynichthys angustus''Keith L. Jackson and Joseph S. Nelson, ''Ambophthalmos'', a new genus for "''Neophrynichthys''" ''angustus'' and "''Neophrynichthys''" ''magnicirrus'', and the systematic interrelationships of the fathead sculpins (Cottoidei, Psychrolutidae), ''Can. J. Zool.'' 76(7): 1344–1357 (1998), .) is a fathead sculpin of the family Psychrolutidae. Habitat and appearance The fathead sculpin is found on the continental shelf around New Zealand, between 250 and 1,000 metres deep. It is up to 30 cm long. References * * Tony Ayling & Geoffrey Cox, ''Collins Guide to the Sea Fishes of New Zealand'', (William Collins Publishers Ltd, Auckland, New Zealand 1982) Pale toadfish The pale toadfish (''Ambophthalmos angustus'', previously classified as ''Neophrynichthys angustus''Keith L. Jackson and Joseph S. Nelson, ''Ambophthalmos'', a new genus for "''Neophrynichthys''" ''angustus'' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Schieser Nelson
Joseph (Joe) Schieser Nelson (April 12, 1937 – August 9, 2011) was a Canadian ichthyologist. He is best known for the book ''Fishes of the World'' (1st edition 1976, 4th edition 2006), which is the standard reference in fish systematics and evolution. Nelson obtained his PhD from University of British Columbia in 1965. He retired in 2002 from the University of Alberta where he made most of his career; he continued to hold position as a Professor Emeritus and stayed scientifically active until his final years. Outside academia, Nelson was a black belt in karate (; ; Okinawan language, Okinawan pronunciation: ), also , is a martial arts, martial art developed in the Ryukyu Kingdom. It developed from the Okinawan martial arts, indigenous Ryukyuan martial arts (called , "hand"; ''tī'' in Okinawan) un .... Legacy Species described by Nelson: Species named after Nelson: References {{DEFAULTSORT:Nelson, Joseph S. 1937 births 2011 deaths Canadian biologists Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fathead Sculpin
The fish family Psychrolutidae (commonly known as blobfishes, flathead sculpins, or tadpole sculpins) contains over 35 recognized species in 8 genera. This family consists of bottom-dwelling marine sculpins shaped like tadpoles, with large heads and bodies that taper back into small, flat tails. The skin is loosely attached and movable, and the layer underneath it is gelatinous. The eyes are placed high on the head, focused forward closer to the tip of the snout. Members of the family generally have large, leaf-like pectoral fins and lack scales, although some species are covered with soft spines. This is important to the species as the depths in which they live are highly pressurized and they are ambush/opportunistic/foraging predators that do not expend energy unless they are forced to. The blobfish has a short, broad tongue and conical teeth that are slightly recurved and are arranged in bands in irregular rows along the premaxillaries; canines are completely absent. Teeth are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychrolutidae
The fish family Psychrolutidae (commonly known as blobfishes, flathead sculpins, or tadpole sculpins) contains over 35 recognized species in 8 genera. This family consists of bottom-dwelling marine sculpins shaped like tadpoles, with large heads and bodies that taper back into small, flat tails. The skin is loosely attached and movable, and the layer underneath it is gelatinous. The eyes are placed high on the head, focused forward closer to the tip of the snout. Members of the family generally have large, leaf-like pectoral fins and lack scales, although some species are covered with soft spines. This is important to the species as the depths in which they live are highly pressurized and they are ambush/opportunistic/foraging predators that do not expend energy unless they are forced to. The blobfish has a short, broad tongue and conical teeth that are slightly recurved and are arranged in bands in irregular rows along the premaxillaries; canines are completely absent. Teeth are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental Shelf
A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water, known as a shelf sea. Much of these shelves were exposed by drops in sea level during glacial periods. The shelf surrounding an island is known as an "''insular shelf''." The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope, surrounded by the flatter continental rise, in which sediment from the continent above cascades down the slope and accumulates as a pile of sediment at the base of the slope. Extending as far as 500 km (310 mi) from the slope, it consists of thick sediments deposited by turbidity currents from the shelf and slope. The continental rise's gradient is intermediate between the gradients of the slope and the shelf. Under the United Nations Convention on the Law of the Sea, the name continental shelf was given a legal definition as the stretch of the seabed adjacent to the shores ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of island countries, sixth-largest island country by area and lies east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The Geography of New Zealand, country's varied topography and sharp mountain peaks, including the Southern Alps (), owe much to tectonic uplift and volcanic eruptions. Capital of New Zealand, 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 subsequently developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambophthalmos
''Ambophthalmos'' is a genus of marine ray-finned fish belonging to the family Psychrolutidae. These fishes are found in the southwestern Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is .... Species There are currently three recognized species in this genus: * '' Ambophthalmos angustus'' ( J. S. Nelson, 1977) (Pale toadfish) * '' Ambophthalmos eurystigmatephoros'' K. L. Jackson & J. S. Nelson, 1999 * '' Ambophthalmos magnicirrus'' (J. S. Nelson, 1977) (Frilled toadfish) References Psychrolutidae {{Cottoidei-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Marine Fish Of New Zealand
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or becomin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
