''Tor tambroides'', known as empurau in Malay, is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of mahseer native to

Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...

Taxonomy

It has been suggested that the species represents a junior synonym of '' Tor tambra''. ''T. tambra'', ''T. tambroides'' and '' T. douronensis'' may be synonymous.

Distribution

These fish have been found throughout

ranging Length measurement, distance measurement, or range measurement (ranging) refers to the many ways in which length, distance, or range can be measured. The most commonly used approaches are the rulers, followed by transit-time methods and the in ...

from

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

in the Chao Phraya and

Mekong River The Mekong or Mekong River is a trans-boundary river in East Asia and Southeast Asia. It is the world's twelfth longest river and the third longest in Asia. Its estimated length is , and it drains an area of , discharging of water annual ...

basins to the

Greater Sunda Islands The Greater Sunda Islands (Indonesian and Malay: ''Kepulauan Sunda Besar'') are four tropical islands situated within Indonesian Archipelago, in the Pacific Ocean. The islands, Borneo, Java, Sulawesi and Sumatra, are internationally recognise ...

. The species has been reported in

Burma Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

. The type locality of Tor tambroides is the Indonesian island of Sumatra.

Ecology

The species is

omnivorous An omnivore () is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nut ...

, sometimes eating toxic fruits when the streams it inhabits flood the forest; this may make them temporarily inedible. During the rainy season, juveniles migrate downstream. After 2 months, matured adults travel back upstream to spawn at the headwaters in the dry season.

Conservation

While the species is not currently assigned a conservation status by the IUCN due to lack of data, overfishing is assumed to threaten the wild population. The ''empurau'', as the species is known in Malaysia, is reportedly the most expensive edible fish in the country and has been known to fetch up to RM1800 per

kilogram The kilogram (also kilogramme) is the unit of mass in the International System of Units (SI), having the unit symbol kg. It is a widely used measure in science, engineering and commerce worldwide, and is often simply called a kilo colloquially ...

of the fish.

Aquaculture

Empurau can be grown in captivity. The fish require moving, well-oxygenated water. They should be fed on various fruits and seeds to simulate their natural diet. Artificial hormones may be necessary to induce reproduction.

References

External links

Empurau – king of the river
* https://www.mahseertrust.org/ {{Taxonbar, from=Q3768599 Fish of Thailand Cyprinid fish of Asia Fish described in 1854 Taxa named by Pieter Bleeker