Elegant Rasbora

Rasbora elegans és una espècie de peix de la família dels ciprínids i de l'ordre dels cipriniformes.

Morfologia

Els mascles poden assolir els 20 cm de longitud total.^[3][4]

Distribució geogràfica

Es troba a Malàisia, Singapur, Borneo i Sumatra.^[3]

Referències

Bibliografia

• Eschmeyer, William N., ed. 1998. Catalog of Fishes. Special Publication of the Center for Biodiversity Research and Information, núm. 1, vol. 1-3. California Academy of Sciences. San Francisco (Califòrnia), Estats Units. 2905. ISBN 0-940228-47-5.
• Helfman, G., B. Collette i D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts (Estats Units), 1997.
• Moyle, P. i J. Cech.: Fishes: An Introduction to Ichthyology, 4a edició, Upper Saddle River, Nova Jersey, Estats Units: Prentice-Hall (2000).
• Nelson, J.: Fishes of the World, 3a edició. Nova York, Estats Units: John Wiley and Sons. Any 1994.
• Volz, W. 1903. Neue Fische aus Sumatra. Zool. Anz. v. 26 (núm. 703): 553-559.
• Wheeler, A.: The World Encyclopedia of Fishes, 2a edició, Londres: Macdonald. Any 1985.

Enllaços externs

• AQUATAB.NET

The twospot rasbora (Rasbora elegans) is a species of ray-finned fish in the genus Rasbora native to south east asia. It is one of the members of the Sumatrana group.^[3]

Distribution

Native to Peninsular Malaysia, Singapore and the Greater Sunda Islands (except Sulawesi and Java).

In Peninsular Malaysia, it is predominately found in Johor and Pahang, but also reported from the states of Negeri Sembilan, Perak and Kelantan.

It is a commonly found species in Singapore and can even be encountered outside the central catchment area of the island.

On Sumatra, the only record of the species is from the small island of Nias, although presumably it also occurs on the main island.

On Borneo, it is only confirm to occur in East Kalimantan and parts of the lower Kapuas River basin in West Kalimantan. It is not known if the species occur in Malaysian Borneo, Brunei Darussalam or north Kalimantan, Indonesia.^[4]

Description

It is easily distinguishable from others of its genus by lacking a dark stripe along the lateral line. Instead it possesses one rectangular spot below the dorsal fin origin and lateral line, and a second triangular spot at the caudal peduncle. The spots can be a dark black or faded, depending on the habitat and locality. In some cases a small marking can present above the anal fin.^[4]

R. bunguranensis and R. spilotaenia used to be thought as subspecies of R. elegans.^[3]

Habitat

It can be found in clear forest streams and creaks with sandy or rocky bottom, spending most of its time near the surface searching for insects and other prey^[5]

References

Rasbora elegans es una especie de peces de la familia de los Cyprinidae en el orden de los Cypriniformes.

Morfología

Los machos pueden llegar alcanzar los 20 cm de longitud total.^[1]​^[2]​

Hábitat

Es un pez de agua dulce.

Distribución geográfica

Se encuentra en Malasia, Singapur, Borneo y Sumatra.

Referencias

Bibliografía

• Eschmeyer, William N., ed. 1998. Catalog of Fishes. Special Publication of the Center for Biodiversity Research and Information, núm. 1, vol. 1-3. California Academy of Sciences. San Francisco, California, Estados Unidos. 2905. ISBN 0-940228-47-5.
• Fenner, Robert M.: The Conscientious Marine Aquarist. Neptune City, Nueva Jersey, Estados Unidos : T.F.H. Publications, 2001.
• Helfman, G., B. Collette y D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts, Estados Unidos , 1997.
• Moyle, P. y J. Cech.: Fishes: An Introduction to Ichthyology, 4a. edición, Upper Saddle River, Nueva Jersey, Estados Unidos: Prentice-Hall. Año 2000.
• Nelson, J.: Fishes of the World, 3a. edición. Nueva York, Estados Unidos: John Wiley and Sons. Año 1994.
• Wheeler, A.: The World Encyclopedia of Fishes, 2a. edición, Londres: Macdonald. Año 1985.

Rasbora elegans Rasbora generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cyprinidae familian.

Banaketa

Erreferentziak

• FhisBase.org

Ikus, gainera

• Rasbora
• Cyprinidae

Rasbora elegans Volz, 1903 è un pesce d'acqua dolce appartenente alla famiglia Cyprinidae e alla sottofamiglia Danioninae.

Distribuzione e habitat

Ruscelli della foresta pluviale del Borneo, della Malaysia e di Sumatra^[2].

Descrizione

Raggiunge i 20 cm di lunghezza^[2]. Il corpo è allungato, più slanciato nei maschi^[3], e ha una colorazione grigia-verdastra con due macchie nere. Le femmine sono più pallide.

Biologia

Comportamento

È una specie pacifica, che forma gruppi^[3].

Alimentazione

Riproduzione

È oviparo e la fecondazione è esterna^[4]; non ci sono cure nei confronti delle uova.

Acquariofilia

Non è particolarmente comune in commercio^[5], ma in acquario si riproduce abbastanza facilmente^[3].

Conservazione

Questa specie non è considerata minacciata perché il suo areale è molto vasto e non sembra ci siano particolari fonti di minaccia. Inoltre è molto comune almeno in parte dell'areale^[1].

Note

Bibliografia

• (FR) R. Allgayer, G. Allain, T. Maître-Allain, A. Breitenstein, Encyclopedie visuelle de l'aquarium, Editions Artemis, 2007, ISBN 978-2-84416-496-4.

Rasbora elegans is een straalvinnige vissensoort uit de familie van de eigenlijke karpers (Cyprinidae).^[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1903 door Volz.