Siamese Fighting Fish, Betta splendens Regan 1910


Siamese Fighting Fish, Betta splendens. Source: Dave Wilson / Aquagreen, http://www.aquagreen.com.au/. License: All rights reserved

Summary:

A very popular aquarium fish known for its brilliant colours and long fins that have been developed through selective breeding in captivity. In the wild, Siamese Fighting Fish are a dull greenish, to brown or grey, and have relatively short fins. They are surface air breathers, and have a specialised labyrinth organ which allows them to gulp air from the surface. Surface air breathing helps Siamese Fighting Fish survive in waters that are low in dissolved oxygen. 

The species was discovered in large numbers in Fogg Dam in the Northern Territory in January 2014. Although native to Thailand, Vietnam and Cambodia in Southeast Asia, introduced Siamese Fighting Fish are established in the wild in some parts of the world.

Siamese Fighting Fish may pose a significant threat to native fishes, frogs and other native species in these wetlands - through competition, predation and the introduction of diseases.


Cite this page as:
Dianne J. Bray, Betta splendens in Fishes of Australia, accessed 21 Nov 2018, http://fishesofaustralia.net.au/home/species/4919

Siamese Fighting Fish, Betta splendens Regan 1910

More Info


Distribution

Discovered in Fogg Dam and the Adelaide River Floodplain in the Northern Territory in January 2014. Native to Thailand, Vietnam and Cambodia in Southeast Asia. The species now appears widespread along the wetlands adjacent the Adelaide River on the Western side upstream and downstream of the Arnhem Highway.
Siamese Fighting Fish are usually found around the margins of large, heavily vegetated marshes, rice paddies and slow moving streams. They can tolerate water with low dissolved oxygen levels due to air-breathing ability. 

Feeding

Carnivore - feeds on small aquatic and terrestrial insects and larvae. 

Biology

Males are very territorial and build a bubble nest into which females lay their eggs. He male guards to eggs, carefully ensuring that they remain in the bubble nest. The fry hatch after 24–36 hours, and remain in the nest for several days until they fully absorb their yolk sacs. The labyrinth organ develops and becomes functional after 3-6 weeks, and individuals may attain sexual maturity at 4-5 months.

Author

Dianne J. Bray

Siamese Fighting Fish, Betta splendens Regan 1910

References


Baird, I.G., V. Inthaphaisy, P. Kisouvannalath, B. Phylavanh & B. Mounsouphom. 1999. The fishes of southern Lao. Lao Community Fisheries and Dolphin Protection Project. Ministry of Agriculture and Forestry, Lao PDR.161 pp.

Chou, L.M. & T.J. Lam. 1989. Introduction of exotic aquatic species in Singapore. p. 91-97. In S.S. De Silva (ed.) Exotic aquatic organisms in Asia. Proceedings of the Workshop on Introduction of Exotic Aquatic Organisms in Asia. Spec. Publ. Asian Fish. Soc. 3, 154 pp.

Courtenay, W.R., Jr. & J.R. Stauffer, Jr. 1990. The introduced fish problem and  the aquarium fish industry. Journal of the World Aquaculture Society 21: 145-159. 


Mohsin, A.K.M. & M.A. Ambak. 1983. Freshwater fishes of Peninsular Malaysia. Penerbit Universiti Pertanian Malaysia, Malaysia. 284 pp.  Nico, L. 2012. Betta splendens. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. 

Rainboth, W.J. 1996. Fishes of the Cambodian Mekong. FAO Species Identification Field Guide for Fishery Purposes. FAO, Rome, 265 pp.
Rixon, C.A.M., I.C. Duggan, N.M.N. Bergeron, A. Ricciardi & H.J. Macisaac. 2005. Invasion risks posed by the aquarium trade and live fish markets on the Laurentian Great Lakes. Biodivers. Conserv. 14: 1365-1381.

Smith, H.M. 1945. The fresh-water fishes of Siam, or Thailand. United States Government Printing Office, Washington D.C.

Tan, H.H. & P.K.L. Ng. 2005. The fighting fishes (Teleostei: Osphronemidae: Genus Betta) of Singapore, Malaysia and Brunei. Raffles Bull. Zool. Supplement (13): 43-99.

Tan, H.H. & P.K.L. Ng. 2005. The labyrinth fishes (Teleostei: Anabantoidei, Channoidei) of Sumatra, Indonesia. Raffles Bull. Zool. Supplement (13): 115-138.

Vidthayanon. 2004. Handbook of freshwater fishes of Thailand. Sarakadee, Bangkok.

Vidthayanon, C. 2011. Betta splendens. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 04 February 2014.

Welcomme, R.L. 1988. International introductions of inland aquatic species. FAO Fish. Tech. Pap. 294. 318 p.

Quick Facts


CAAB Code:37453002

Biology:Air-breathers

Habitat:Freshwater

Max Size:7 cm TL

Native:Introduced

Species Image Gallery

Species Maps

CAAB distribution map