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Nelma

Stenodus nelma, known alternatively as the nelma, sheefish, siifish, inconnu or connie, is a commercial species of freshwater whitefish in the family Salmonidae. It is widespread in the Arctic rivers from the Kola Peninsula (White Sea basin) eastward across Siberia to the Anadyr River and also in the North American basins of the Yukon River and Mackenzie River.[2][1][3][4]

Stenodus nelma
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Genus: Stenodus
Species:
S. nelma
Binomial name
Stenodus nelma
(Pallas, 1773)[1]
Synonyms
  • Salmo nelma Pallas, 1773
  • Stenodus leucichthys nelma (Pallas, 1773)
  • Salmo mackenzii Richardson, 1823
  • Stenodus leucichthys mackenzii (Richardson, 1823)
  • Stenodus mackenzii (Richardson, 1823)
  • Leucichthys nelma (Pallas, 1773)

Appearance and lifestyle edit

Stenodus nelma is an anadromous fish, up to 150 centimetres (59 in) in length.[4] The fish has a large mouth with a protruding lower jaw and a high and pointed dorsal fin. It is generally silver in color with a green, blue or brown back. The meat is white, flaky and somewhat oily. An adult fish weighs up to 27 kilograms (60 lb).[5]

The fish eat plankton for their first year of life and then become predators of smaller fish. They live in lakes and rivers and in the brackish water at the outlets of rivers into the ocean. They may migrate more than 1,600 kilometres (1,000 mi) to their upriver spawning grounds, but some populations spend their entire life in fresh water and do not migrate.[5]

Systematics edit

Stenodus nelma has previously been considered a subspecies of Stenodus leucichthys (S. leucichthys nelma). The typical Stenodus leucichthys (beloribitsa) is a landlocked Eurasian species restricted to the Caspian Sea basin, and now extinct in the wild.[6][7]

 
Iñupiat fishing for sheefish at Selawik National Wildlife Refuge, Alaska

References edit

  1. ^ a b c Freyhof, J. & Kottelat, M. (2008). "Stenodus nelma". IUCN Red List of Threatened Species. 2008: e.T135545A4141935. doi:10.2305/IUCN.UK.2008.RLTS.T135545A4141935.en. Retrieved 19 November 2021.
  2. ^ Kottelat, M.; Freyhof, J. (2007). Handbook of European Freshwater Fishes. ISBN 978-2-8399-0298-4.
  3. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Stenodus". Catalog of Fishes. California Academy of Sciences. Retrieved 15 March 2012.
  4. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2013). "Stenodus nelma" in FishBase. February 2013 version.
  5. ^ a b Alaska Department of Fish and Game. "Sheefish Species Profile". www.adfg.alaska.gov. Retrieved 2021-04-26.
  6. ^ Belyaeva, E. S. "Stenodus leucichthys leucichthys". caspianenvironment.org. Archived from the original on 2013-07-03.
  7. ^ Freyhof, J. & Kottelat, M. (2008). "Stenodus leucichthys". IUCN Red List of Threatened Species. 2008: e.T20745A9229071. doi:10.2305/IUCN.UK.2008.RLTS.T20745A9229071.en.

External links edit

  • GreatCanadianRivers.com
  • Stenodus leucichthys nelma Illustration by N.N. Kondrakov. NOAA Photo Library.



nelma, other, uses, disambiguation, stenodus, nelma, known, alternatively, nelma, sheefish, siifish, inconnu, connie, commercial, species, freshwater, whitefish, family, salmonidae, widespread, arctic, rivers, from, kola, peninsula, white, basin, eastward, acr. For other uses see Nelma disambiguation Stenodus nelma known alternatively as the nelma sheefish siifish inconnu or connie is a commercial species of freshwater whitefish in the family Salmonidae It is widespread in the Arctic rivers from the Kola Peninsula White Sea basin eastward across Siberia to the Anadyr River and also in the North American basins of the Yukon River and Mackenzie River 2 1 3 4 Stenodus nelma Conservation status Least Concern IUCN 3 1 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Salmoniformes Family Salmonidae Genus Stenodus Species S nelma Binomial name Stenodus nelma Pallas 1773 1 Synonyms Salmo nelma Pallas 1773 Stenodus leucichthys nelma Pallas 1773 Salmo mackenzii Richardson 1823 Stenodus leucichthys mackenzii Richardson 1823 Stenodus mackenzii Richardson 1823 Leucichthys nelma Pallas 1773 Contents 1 Appearance and lifestyle 2 Systematics 3 References 4 External linksAppearance and lifestyle editStenodus nelma is an anadromous fish up to 150 centimetres 59 in in length 4 The fish has a large mouth with a protruding lower jaw and a high and pointed dorsal fin It is generally silver in color with a green blue or brown back The meat is white flaky and somewhat oily An adult fish weighs up to 27 kilograms 60 lb 5 The fish eat plankton for their first year of life and then become predators of smaller fish They live in lakes and rivers and in the brackish water at the outlets of rivers into the ocean They may migrate more than 1 600 kilometres 1 000 mi to their upriver spawning grounds but some populations spend their entire life in fresh water and do not migrate 5 Systematics editStenodus nelma has previously been considered a subspecies of Stenodus leucichthys S leucichthys nelma The typical Stenodus leucichthys beloribitsa is a landlocked Eurasian species restricted to the Caspian Sea basin and now extinct in the wild 6 7 nbsp Inupiat fishing for sheefish at Selawik National Wildlife Refuge AlaskaReferences edit a b c Freyhof J amp Kottelat M 2008 Stenodus nelma IUCN Red List of Threatened Species 2008 e T135545A4141935 doi 10 2305 IUCN UK 2008 RLTS T135545A4141935 en Retrieved 19 November 2021 Kottelat M Freyhof J 2007 Handbook of European Freshwater Fishes ISBN 978 2 8399 0298 4 Eschmeyer William N Fricke Ron amp van der Laan Richard eds Species in the genus Stenodus Catalog of Fishes California Academy of Sciences Retrieved 15 March 2012 a b Froese Rainer Pauly Daniel eds 2013 Stenodus nelma in FishBase February 2013 version a b Alaska Department of Fish and Game Sheefish Species Profile www adfg alaska gov Retrieved 2021 04 26 Belyaeva E S Stenodus leucichthys leucichthys caspianenvironment org Archived from the original on 2013 07 03 Freyhof J amp Kottelat M 2008 Stenodus leucichthys IUCN Red List of Threatened Species 2008 e T20745A9229071 doi 10 2305 IUCN UK 2008 RLTS T20745A9229071 en External links edit Mackenzie River Ecosystem A Dynamic Delta Inconnu The Unknown Fish GreatCanadianRivers com Stenodus leucichthys nelma Illustration by N N Kondrakov NOAA Photo Library nbsp This Salmonidae article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Nelma amp oldid 1220607870, wikipedia, wiki, book, books, library,

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