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Notothenia
''Notothenia'' is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes with the species in this genus often having the common name of rockcod. They are native to the Southern Ocean and other waters around Antarctica. Taxonomy ''Notothenia'' was first formally described as a genus in 1844 by the Scottish naval surgeon, naturalist and Arctic explorer John Richardson when he described ''N. coriiceps'' which was later designated as the type species of the genus. Some authorities place this taxon in the subfamily Nototheniinae, but the 5th edition of ''Fishes of the World'' does not include subfamilies in the Nototheniidae. The name of the genus is a compound of ''notos'' meaning “south” and ''thenia'' which means “coming from”, an allusion to the high southern latitudes these fishes are found at. Species Seven recognized species are in this genus: * ''Notothenia angustata'' F. W. Hutton, 1875 (Maori chief) * ''Noto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Coriiceps
''Notothenia coriiceps'', also known as the black rockcod, Antarctic yellowbelly rockcod, or Antarctic bullhead notothen, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is widely spread around the Antarctic continent.Eastman, Joseph (1993). ''Antarctic Fish Biology: Evolution in a Unique Environment''. San Diego, California: Academic Press, In Like other Antarctic notothenioid fishes, ''N. coriiceps'' evolved in the stable, ice-cold environment of the Southern Ocean. It is not currently targeted by commercial fisheries. Taxonomy ''Notothenia coriiceps'' was first formally described in 1844 by the Scottish naval surgeon, naturalist and Arctic explorer John Richardson with the type locality given as the coasts of the Kerguelen Islands and the Auckland Islands. Richardson named a new genus, ''Notothenia'', in his description and this species was designated as its type species by Theodore Nicholas Gill in 1862. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Neglecta
''Notothenia neglecta'', the yellowbelly rockcod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is found in the Southern Ocean in Antarctica. They are omnivorous, and are found in both benthic and pelagic regions of the ocean. Their diet includes krill, bivalves, and gastropods. They have evolved unique behaviors and morphological features in order to thrive in the cold and harsh Antarctic climate. ''N. neglecta'' is also commercially fished, although not in high numbers. Taxonomy ''Notothenia neglecta'' was first formally described in 1951 by the Swedish ichthyologist with the type locality being given as Deception Island, South Shetland Islands. Some authorities treat this taxon as a synonym of '' N. coriiceps''. The specific name ''neglecta'' means "overlooked", thought to be an allusion to this species confusion with ''N. coriiceps''. Anatomy and morphology Members of ''N. neglecta'' have 3-7 dorsa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Cyanobrancha
''Notothenia cyanobrancha'', the blue rockcod, bluegill notothen, or bluegill rockcod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Kerguelen and Heard Islands in the Southern Ocean. Taxonomy ''Notothenia cyanobrancha'' was first formally described in 1844 by the Scottish naval surgeon, naturalist and Arctic explorer John Richardson with the type locality given as Kerguelen Island. This species was placed in its own genus ''Indonotothenia'' by Russian ichthyologist A.V. Balushkin in 1984. This classification was repeated in 2011, when W.N. Eschmeyer and Ronald Fricke classified ''N. cyanobrancha'' in their ''Catalog of Fishes'', but this was not used in Ofer Gon and Phillip C. Heemstra's ''Fishes of the Southern Ocean'' (in which ''Indonotothenia'' is classified as a subgenus of ''Notothenia''), R.G. Miller's ''A History and Atlas of Fishes of the Antarctic Ocean'', or W. Fischer and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Rossii
The marbled rockcod (''Notothenia rossii'') is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean, where it can be found at depths from . This is a commercially important species. Taxonomy The marbled rockcod was first formally described in 1844 by the Scottish naval surgeon, naturalist and Arctic explorer John Richardson with no type locality given, although it is thought likely to be Kerguelen Island. Richardson gave it the specific name ''rossii'' which honours James Clark Ross, the leader of the Ross expedition, a scientific expedition by the vessels HMS ''Erebus'' and HMS ''Terror'' to survey and explore the coasts of Antarctica. Description The marbled rockcod can reach a length of , though a more common length is around . The greatest recorded weight for this species is . The dorsal fin is divided in two parts, with four to seven spines in the front portion and 32 to 36 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Angustata (Maori Chief)
''Notothenia angustata'', the Maori chief or black cod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean Taxonomy ''Notothenia angustata'' was first formally described in 1875 by the English-born New Zealand scientist Frederick Wollaston Hutton with the type locality given as Dunedin in New Zealand. The specific name ''angustata'' means "narrowed" a reference to the relatively narrow head of this species. Description ''Notothenia angustata'' is a large demersal fish which is quite similar in shape and colour to the Maori cod (''Paranotothen magellanica''). The mouth is large and there are obvious bony ridge over each eye. They have a rounded caudal fin and slightly overlapping lateral lines. The small first dorsal fin has six spines. The colour is dark grey or green on the upper body with blue-black mottling and it has a yellow abdomen. There are many small grey spots and stre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Angustata
''Notothenia angustata'', the Maori chief or black cod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean Taxonomy ''Notothenia angustata'' was first formally described in 1875 by the English-born New Zealand scientist Frederick Wollaston Hutton with the type locality given as Dunedin in New Zealand. The specific name ''angustata'' means "narrowed" a reference to the relatively narrow head of this species. Description ''Notothenia angustata'' is a large demersal fish which is quite similar in shape and colour to the Maori cod (''Paranotothen magellanica''). The mouth is large and there are obvious bony ridge over each eye. They have a rounded caudal fin and slightly overlapping lateral lines. The small first dorsal fin has six spines. The colour is dark grey or green on the upper body with blue-black mottling and it has a yellow abdomen. There are many small grey spots and streaks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Microlepidota
''Notothenia microlepidota'', the black cod or small-scaled cod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Pacific waters around New Zealand and Macquarie Island. This species can reach a total length of . It is a commercially important species. Taxonomy ''Notothenia microlepidota'' was first formally described in 1875 by the English-born New Zealand scientist Frederick Wollaston Hutton with the type locality given as Dunedin and Dunedin and Moeraki in New Zealand. The specific name ''microlepidota'' means "small scaled" which is though to be a reference to its small, numerous scales when compared to '' N. angustata'' which Woolaston described in the same paper. Description ''Notothenia microlepidota'' juveniles have a silvery appearance and their caudal fin is clearly forked. The adults have a less obviously forked caudal fin. The colour of the body is silver, yellow and reddish-brown. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notothenia Trigramma
''Notothenia trigramma'' is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It occurs in the southwestern Atlantic Ocean. Taxonomy ''Notothenia trigramma'' was first formally described in 1913 by the English ichthyologist Charles Tate Regan with the type locality given as the harbour at Port Stanley in the Falkland Islands, the type specimen being collected on the Scottish National Antarctic Expedition. Some authorities classify this species in the genus '' Paranotothenia'', although FishBase has retained it in the genus ''Notothenia'' pending further studies. Other authorities have placed this species in the genus '' Patagonotothen'' and some have regarded it as a synonym of '' Patagonotothen canina''. The specific name ''trigramma'' means “three lined”, a reference to the three lateral lines possessed by this species. Description ''Notothenia trigramma'' has a body which has a standard length which is fiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nototheniidae
: ''In some scientific literature, the term "cod icefish" is used to identify members of this family. This should not be confused with the term "icefish," which refers to the "white-blooded" fishes of the family Channichthyidae. See Icefish (other).'' Nototheniidae, the notothens or cod icefishes, is a family of ray-finned fishes, part of the suborder Notothenioidei which is traditionally placed within the order Perciformes. They are largely found in the Southern Ocean. Taxonomy Nototheniidae was described as a family in 1861 by the German-born British ichthyologist Albert Günther with the type genus being ''Notothenia'' which had been described in 1844 by Sir John Richardson with the species ''Notothenia coriiceps'' which Richardson had also described in 1844 subsequently being designated as the type in 1862 by Theodore Nicholas Gill. The name ''Notothenia'' means “coming from the south”, a reference to the Antarctic distribution of the genus. They are traditio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Ocean
The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. With a size of , it is regarded as the second-smallest of the five principal oceanic divisions: smaller than the Pacific, Atlantic, and Indian oceans but larger than the Arctic Ocean. Over the past 30 years, the Southern Ocean has been subject to rapid climate change, which has led to changes in the marine ecosystem. By way of his voyages in the 1770s, James Cook proved that waters encompassed the southern latitudes of the globe. Since then, geographers have disagreed on the Southern Ocean's northern boundary or even existence, considering the waters as various parts of the Pacific, Atlantic, and Indian oceans, instead. However, according to Commodore John Leech of the International Hydrographic Organization (IHO), recent oceanographic research has discovered the importance of Southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orvar Nybelin
Orvar or Örvar is a Nordic male given name, which means " arrow" in Old Norse.''Behind the Name''"Given Name Orvar" Retrieved on 12 January 2016. Örvar-Oddr ("arrow's point") is a legendary hero in a 13th-century Icelandic saga. The name may refer to: * Orvar Bergmark (1930–2004), Swedish football player and manager * Orvar Jönsson (born 1950), Swedish fencer * Orvar Lindwall (born 1941), Swedish fencer * Orvar Säfström (born 1974), Swedish film critic *Örvar Þóreyjarson Smárason Örvar Þóreyjarson Smárason (born 1977) is a founding member of Icelandic experimental band múm, and has been a part-time member of other Icelandic bands such as Benni Hemm Hemm, Singapore Sling, Slowblow, Andhéri, Skakkamanage, FM B ... (born 1977), Icelandic musician * Orvar Trolle (1900–1971), Swedish swimmer References {{Reflist Scandinavian masculine given names Swedish masculine given names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishes Of The World
''Fishes of the World'' by the American ichthyologist Joseph S. Nelson (1937–2011) is a standard reference for fish systematics. Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science. The book begins with a general overview of ichthyology, although it is not self-contained. After a short section on Chordata and non-fish taxa, the work lists all known fish families in a systematic fashion. Each family (biology), family gets at least one paragraph, and usually a body outline drawing; large families have subfamilies and tribes described as well. Notable genera and species are mentioned, while the book generally does not deal with the species-level diversity. The complexities of the higher taxa are described succinctly, with many references for difficult points. The book does not involve color illustrations. The fourth edition was the first to incorporate the wide use of DNA analy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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