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Abyssocottinae
The Abyssocottinae are a subfamily of ray-finned fishes in the family Cottidae, the sculpins. They are known commonly as the deep-water sculpins.Froese, R. and D. Pauly. (Eds.Abyssocottidae.FishBase. 2011. The entire family is endemic to Lake Baikal in Siberia.Hunt, D. M., et al. (1997)Molecular evolution of the cottoid fish endemic to Lake Baikal deduced from nuclear DNA evidence.''Molecular Phylogenetics and Evolution'' 8(3), 415–22. Sculpins of this subfamily mostly live in deep water, below . There are 24 known species in seven genera. These include, for instance, '' Abyssocottus korotneffi'' and ''Cottinella boulengeri'' which are among the deepest-living freshwater fish. Baikal is the deepest lake on Earth () and sculpins occupy even its greatest depths. Evolution and systematics Molecular studies based on mitochondrial DNA suggest that the Abyssocottinae along with other Lake Baikal cottoid fishes, now attributed to the likewise endemic Cottocomephorinae (Baikal scul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abyssocottidae
The Abyssocottinae are a subfamily of ray-finned fishes in the family Cottidae, the sculpins. They are known commonly as the deep-water sculpins.Froese, R. and D. Pauly. (Eds.Abyssocottidae.FishBase. 2011. The entire family is endemic to Lake Baikal in Siberia.Hunt, D. M., et al. (1997)Molecular evolution of the cottoid fish endemic to Lake Baikal deduced from nuclear DNA evidence.''Molecular Phylogenetics and Evolution'' 8(3), 415–22. Sculpins of this subfamily mostly live in deep water, below . There are 24 known species in seven genera. These include, for instance, '' Abyssocottus korotneffi'' and '' Cottinella boulengeri'' which are among the deepest-living freshwater fish. Baikal is the deepest lake on Earth () and sculpins occupy even its greatest depths. Evolution and systematics Molecular studies based on mitochondrial DNA suggest that the Abyssocottinae along with other Lake Baikal cottoid fishes, now attributed to the likewise endemic Cottocomephorinae (Baikal scu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batrachocottus
''Batrachocottus'' is a genus of freshawater ray-finned fishes belonging to the family Cottidae, the typical sculpins. These fishes are endemic to the Lake Baikal watershed in Russia. Taxonomy ''Batrachocottus'' was first proposed as a monospecific genus in 1903 by the Russian ichthyologist Lev Berg with ''Cottus baicalensis'' as its type species. This genus was not mentioned by the 5th edition of ''Fishes of the World'' and has been placed in the family Cottidae by some authorities. and in the subfamily Abyssocottinae by others. However, other authorities have used phylogenetic studies which have found that Baikal sculpins that were classified in the subfamilies Comephorinae and Abyssocottinae by ''Fishes of the World'' radiated from an ancestor which was likely to be within the genus '' Cottus'' and that the classification of the Baikal sculpins in a different taxon from ''Cottus'' was paraphyletic In taxonomy (general), taxonomy, a group is paraphyletic if it consists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abyssocottus
''Abyssocottus'' is a genus of ray-finned fishes belonging to the family Cottidae, the typical sculpins. These sculpins are endemic to Lake Baikal in Russia. Taxonomy ''Abyssocottus'' was first proposed as a genus by the Russian ichthyologist Lev Berg with ''Abyssocottus korotneffi'' designated as its type species. The 5th edition of ''Fishes of the World'' classified this genus within the subfamily Abyssocottinae. However, other authorities have used phylogenetic studies which have found that Baikal sculpins that were classified in the subfamilies Comephorinae and Abyssocottinae by ''Fishes of the World'' radiated from an ancestor which was likely to be within the genus '' Cottus'' and that the classification of the Baikal sculpins in a different taxon from ''Cottus'' was paraphyletic. Species There are currently three recognized species in this genus: * '' Abyssocottus elochini'' Taliev, 1955 * ''Abyssocottus gibbosus ''Abyssocottus gibbosus'' is a species of ray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asprocottus '' L. S. Berg, 1906 (Herzenstein's rough sculpin)
* '' Asprocottus intermedius'' Taliev, 1955
* '' ''Asprocottus'' is a genus of ray-finned fish belonging to the family Cottidae, the typical sculpins. These fishes are endemic to endemic to Lake Baikal in Russia. Species There are currently eight recognised species in this genus: * ''Asprocottus abyssalis'' Taliev, 1955 * ''Asprocottus herzensteini ''Asprocottus herzensteini'', the Herzenstein's rough sculpin, is a deepwater sculpin, a freshwater fish which is endemic to Lake Baikal, Russia. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cottinella Boulengeri
The short-headed sculpin (''Cottinella boulengeri'') iray-finned fish belonging to the family Cottidae, the typical sculpins. This species is endemic to Lake Baikal in Russia. It lives at depths of from , and is not longer than TL. This species is the only known member of its genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com .... References Abyssocottinae Monotypic fish genera Fish of Lake Baikal Fish described in 1906 Taxa named by Lev Berg {{Scorpaeniformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyphocottus
''Cyphocottus'' is a genus of ray-finned fish belonging to the family Cottidae, the typical sculpins. These fishes are endemic to endemic to Lake Baikal in Russia. Species There are currently two recognized species in this genus: * '' Cyphocottus eurystomus'' ( Taliev, 1955) * ''Cyphocottus megalops The Vitim sculpin (''Cyphocottus megalops'') is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. This sculpin is endemic to Lake Baikal, Siberia. It is known to dwell at a depth range of 140–370 metres, usual ...'' ( Gratzianov, 1902) References Abyssocottinae Scorpaeniformes genera Fish of Lake Baikal {{Scorpaeniformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limnocottus
''Limnocottus'' is a genus of ray-finned fish belonging to the family Cottidae, the typical sculpins. These fishes are endemic to Lake Baikal Lake Baikal (, russian: Oзеро Байкал, Ozero Baykal ); mn, Байгал нуур, Baigal nuur) is a rift lake in Russia. It is situated in southern Siberia, between the federal subjects of Irkutsk Oblast to the northwest and the Repu ... in Russia. Species There are currently four recognized species in this genus: * '' Limnocottus bergianus'' Taliev, 1935 * '' Limnocottus godlewskii'' ( Dybowski, 1874) * '' Limnocottus griseus'' (Taliev, 1955) * '' Limnocottus pallidus'' Taliev, 1948 References Abyssocottinae Scorpaeniformes genera Fish of Lake Baikal Taxa named by Benedykt Dybowski {{Scorpaeniformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neocottus
''Neocottus'' is a genus of ray-finned fish belonging to the family Cottidae, the typical sculpins. These fishes are endemic to endemic to Lake Baikal Lake Baikal (, russian: Oзеро Байкал, Ozero Baykal ); mn, Байгал нуур, Baigal nuur) is a rift lake in Russia. It is situated in southern Siberia, between the federal subjects of Irkutsk Oblast to the northwest and the Repu ... in Russia. Species There are currently two recognized species in this genus: * '' Neocottus thermalis'' Sideleva, 2002 * '' Neocottus werestschagini'' ( Taliev, 1935) References Abyssocottinae Fish of Lake Baikal {{Scorpaeniformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Procottus
''Procottus'' is a genus of ray-finned fish belonging to the family Cottidae, the typical sculpins. These fishes are endemic to Lake Baikal Lake Baikal (, russian: Oзеро Байкал, Ozero Baykal ); mn, Байгал нуур, Baigal nuur) is a rift lake in Russia. It is situated in southern Siberia, between the federal subjects of Irkutsk Oblast to the northwest and the Repu ... in Russia. Species There are currently four recognized species in this genus: * '' Procottus gotoi'' Sideleva, 2001 * '' Procottus gurwicii'' ( Taliev, 1946) (Dwarf sculpin) * '' Procottus jeittelesii'' ( Dybowski, 1874) (Red sculpin) * '' Procottus major'' Taliev, 1949 References Abyssocottinae Fish of Lake Baikal {{Scorpaeniformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lev Berg
Lev Semyonovich Berg, also known as Leo S. Berg (russian: Лев Семёнович Берг; 14 March 1876 – 24 December 1950) was a leading Russian geographer, biologist and ichthyologist who served as President of the Soviet Geographical Society between 1940 and 1950. He is known for his own evolutionary theory, nomogenesis (a form of orthogenesis incorporating mutationism) as opposed to the theories of Darwin and Lamarck. Life Lev Berg was born in Bessarabia in a Jewish family, the son of Simon Gregoryevich Berg, a notary, and Klara Lvovna Bernstein-Kogan. He graduated from the Second Kishinev Gymnasium in 1894. Like some of his relatives, Berg converted to Christianity in order to pursue his studies at Moscow State University. At Moscow University, Berg studied hydrobiology and geography. He later studied ichthyology and in 1928 was awarded he was also a member of the Russian Academy of Sciences. Lev Berg graduated from the Moscow State University in 1898. Between 190 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Neogene Period in the . The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adaptive Radiation
In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, alters biotic interactions or opens new environmental niches. Starting with a single ancestor, this process results in the speciation and phenotypic adaptation of an array of species exhibiting different morphological and physiological traits. The prototypical example of adaptive radiation is finch speciation on the Galapagos ("Darwin's finches"), but examples are known from around the world. Characteristics Four features can be used to identify an adaptive radiation: #A common ancestry of component species: specifically a ''recent'' ancestry. Note that this is not the same as a monophyly in which ''all'' descendants of a common ancestor are included. #A phenotype-environment correlation: a ''significant'' association between environments and the morp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
