dcsimg

Diagnostic Description

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Diagnosed from all congeners by having the following characters: extremely slender dorsal most lateralis sensory cavity on preopercle, strongly angled ventrolateral margin of head where third infraorbital meets anterior limb of preopercle such that ventral surface of head is almost flat, and enlarged thickened sheath on anterior third of dorsal-fin base that hides anterior dorsal-fin rays when adpressed. Differs also from all other Arapaima except A. agassizii by having extremely long fourth infraorbital. Distinguished from A. arapaimaand all other examined non-type specimens by having notably slender body; from A. mapae and A. agassizii by having relatively deep caudal peduncle (6.0% SL, vs. ,4.0 in both of latter two taxa); from A. gigasby having dentary teeth in a single row (vs. dentary teeth in 2-2.5 irregular rows); and from A. agassizii by having 28 teeth on maxilla (vs. 43) and on single ramus of dentary (30-32, vs. 44) (Ref. 94273).
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Recorder
Armi G. Torres
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Morphology

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Dorsal soft rays (total): 40; Analsoft rays: 38; Vertebrae: 83
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Arapaima leptosoma

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Arapaima leptosoma is a species of freshwater fish endemic to Brazil. It is a member of the arapaimas, a genus of air-breathing fish that contains some of the world's largest freshwater fish. Like other members of the genus Arapaima, this fish can breathe air. It is known only from the confluence of the Solimões and Purus Rivers in Amazonas, Brazil, although due to the lack of obvious geographic barriers, it likely has a larger range.[1][4][5][6]

Described in 2013, it is the first new member of Arapaima to be described since 1847. It is known from a single holotype that likely represents a juvenile individual.[1] Live individuals occasionally show up in the aquarium trade, although they are usually misidentified as Arapaima gigas.[7][8] It has a deep caudal peduncle relative to other species in its genus.[3]

It is classified as data deficient by the IUCN Red List due to the lack of information about the population or threats to species. However, it is presumably threatened by overfishing as with other members of the genus.[1]

References

  1. ^ a b c d Frederico, R.G. (2022). "Arapaima leptosoma". IUCN Red List of Threatened Species. 2022: e.T162701510A162701567.
  2. ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. ^ a b Stewart D. J. (2013). "A New Species of Arapaima (Osteoglossomorpha: Osteoglossidae) from the Solimões River, Amazonas State, Brazil". Copeia 2013(3); 470-476.
  4. ^ "Arapaima leptosoma". www.fishbase.se. Retrieved 2023-01-08.
  5. ^ "Practicalfishkeeping.co.uk". Archived from the original on 2014-11-29. Retrieved 2013-10-15.
  6. ^ Anderson, Natali (2013-10-11). "New Species of Giant Fish Arapaima Discovered in Brazil | Sci.News". Sci.News: Breaking Science News. Retrieved 2023-01-10.
  7. ^ william (2013-10-23). "New Arapaima species -Arapaima leptosoma - Slender Arapaima". Aquatic Community. Retrieved 2023-01-10.
  8. ^ Lawrence, James (2013-10-17). "New Arapaima Species Described". AMAZONAS Magazine. Retrieved 2023-01-10.
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Arapaima leptosoma: Brief Summary

provided by wikipedia EN

Arapaima leptosoma is a species of freshwater fish endemic to Brazil. It is a member of the arapaimas, a genus of air-breathing fish that contains some of the world's largest freshwater fish. Like other members of the genus Arapaima, this fish can breathe air. It is known only from the confluence of the Solimões and Purus Rivers in Amazonas, Brazil, although due to the lack of obvious geographic barriers, it likely has a larger range.

Described in 2013, it is the first new member of Arapaima to be described since 1847. It is known from a single holotype that likely represents a juvenile individual. Live individuals occasionally show up in the aquarium trade, although they are usually misidentified as Arapaima gigas. It has a deep caudal peduncle relative to other species in its genus.

It is classified as data deficient by the IUCN Red List due to the lack of information about the population or threats to species. However, it is presumably threatened by overfishing as with other members of the genus.

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Arapaima leptosoma ( Spanish; Castilian )

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Arapaima leptosoma es una especie de pez osteoglosiforme de la familia Arapaimidae. Pertenece a un género considerado entre los de mayor tamaño entre la ictiofauna de agua dulce de todo el mundo. Habita en la cuenca del Amazonas.

 src=
Arapaima leptosoma en un acuario de un zoo de Ucrania.

Taxonomía

Esta especie fue descrita originalmente en el año 2013 por el ictiólogo Stewart.[1]

La superficie ventral de la cabeza es casi plana, Se caracteriza, entre otros detalles, por tener extremadamente largo el cuarto infraorbitario, y por tener el cuerpo delgado. Posee relativamente ancho el pedúnculo caudal (6% del largo total contra el 4% en A. mapae y de A. agassizii). De esta última también se separa por tener 28 dientes en el maxilar (frente a 43 en A. agassizii) y sobre una sola rama del dentario (30 a 32 frente a 44 en A. agassizii). Se separa de A. gigas por tener los dientes del dentario en una sola fila (contra dientes dentarios en 2 a 2,5 filas irregulares en esa especie).[1]​ Al igual que otros miembros de su género, este pez puede respirar directamente el aire atmosférico.

Se distribuye en aguas térmicamente tropicales del río Solimões, cerca de la confluencia con el río Purus, en el estado de Amazonas, Brasil.[2]

Referencias

  1. a b Stewart, Donald J. (2013). «A New Species of Arapaima (Osteoglossomorpha: Osteoglossidae) from the Solimões River, Amazonas State, Brazil». Copeia (3): 470-476.
  2. Arapaima leptosoma en fishbase.

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Arapaima leptosoma: Brief Summary ( Spanish; Castilian )

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Arapaima leptosoma es una especie de pez osteoglosiforme de la familia Arapaimidae. Pertenece a un género considerado entre los de mayor tamaño entre la ictiofauna de agua dulce de todo el mundo. Habita en la cuenca del Amazonas.

 src= Arapaima leptosoma en un acuario de un zoo de Ucrania.
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Arapaima leptosoma ( Basque )

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Arapaima leptosoma Arapaima generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Arapaimidae familian.

Banaketa

Erreferentziak

  1. Froese, Rainer & Pauly, Daniel ed. (2006), Arapaima leptosoma FishBase webgunean. 2006ko apirilaren bertsioa.

Ikus, gainera

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Arapaima leptosoma: Brief Summary ( Basque )

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Arapaima leptosoma Arapaima generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Arapaimidae familian.

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Arapaima leptosoma ( Dutch; Flemish )

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Vissen

Arapaima leptosoma is een vissensoort uit de familie van de beentongvissen (Arapaimidae). De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 2013 door Donald J. Steward. Hij komt voor in Brazilië in de buurt van de plaats waar de rivieren Purus en Solimões samenvloeien.

De wetenschappelijke soortaanduiding leptosoma betekent letterlijk vertaald 'slank lichaam' en is afgeleid van de Oudgriekse woorden leptos (λεπτός = slank) en sōma (σῶμα = lichaam).[2]

Bronnen, noten en/of referenties
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Arapaima leptosoma ( Vietnamese )

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Arapaima leptosoma là một loài cá nước ngọt mới được phát hiện đặc hữu của khu dự trữ Mamiraua ở Brasil. Nó có một gốc đuôi sâu so với các loài khác trong chi của nó.[2] Nó là thành viên mới nhất của Arapaima được mô tả từ năm 1847. Loài thành viên của chi Arapaima là loài cá nước ngọt lớn nhất ở Nam Mỹ.[3] Cũng giống như các thành viên khác của chi Arapaima, loài cá này có thể hít thở không khí.[4]

Chú thích

Tham khảo

Hình tượng sơ khai Bài viết Lớp Cá vây tia này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Arapaima leptosoma: Brief Summary ( Vietnamese )

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Arapaima leptosoma là một loài cá nước ngọt mới được phát hiện đặc hữu của khu dự trữ Mamiraua ở Brasil. Nó có một gốc đuôi sâu so với các loài khác trong chi của nó. Nó là thành viên mới nhất của Arapaima được mô tả từ năm 1847. Loài thành viên của chi Arapaima là loài cá nước ngọt lớn nhất ở Nam Mỹ. Cũng giống như các thành viên khác của chi Arapaima, loài cá này có thể hít thở không khí.

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細身巴西骨舌魚 ( Chinese )

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細身巴西骨舌魚,為輻鰭魚綱骨舌魚目骨舌魚科的其中一,為熱帶淡水魚,分布於南美洲巴西Solimões河流域,體長可達77.6公分,棲息在底中層水域,生活習性不明。

参考文献

Froese, Rainer & Daniel Pauly, eds. (2015). Arapaima leptosoma in FishBase. 2015年11月版本

扩展阅读

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細身巴西骨舌魚: Brief Summary ( Chinese )

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細身巴西骨舌魚,為輻鰭魚綱骨舌魚目骨舌魚科的其中一,為熱帶淡水魚,分布於南美洲巴西Solimões河流域,體長可達77.6公分,棲息在底中層水域,生活習性不明。

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