Tor douronensis

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Tor douronensis
Tor douron 160811-61575 ffi.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Genus: Tor
Species:
T. douronensis
Binomial name
Tor douronensis
(Valenciennes, 1842) [1]

Tor douronensis, also known as Labeobarbus douronensis, is a species of ray-finned fish of the family Cyprinidae in the genus Tor . This Asian fresh water river carp can be discovered in southern Thailand, east to Vietnam and south to Indonesia. The species is known from the Chao Phraya and Mekong rivers.
This fish has been attributed to Valenciennes [2] however, in his original notes, he claims that the fish he described "formed part of the collection made in Java by Kuhl and Van Hesselt; they named it Dourr." Certainly, the type locality is Java, in Indonesia and the holotype is lodged at Bogor Zoology Museum. [3]

Contents

Validity

In recent years it has been suggested that Tor douronensis is synonymous with Tor tambra , following the work of Tyson R. Roberts in 1999. [4] Since then, in 2017, Ng Chee Kiat et al. have published a paper [5] on the fish diversity of Sabah state in Malaysian Borneo. They reference the work of Roberts and more recent work by Maurice Kottelat [6] to conclude that Tor tambra is the only currently valid species of mahseer in the rivers of Indonesia and Malaysia.

Taxonomic and genetic issues

Along with many mahseer species in other parts of the region, there is much confusion around the taxonomic and genetic differences between species. Tor douronensis as described from Java has a body length 4.5 times the maximum body height, a short head measuring 1/5 of the body length and 21 lateral line scales. In most places where the locals understand their fish to be Tor douronensis, the fish displays a shorter head and deeper body than Tor tambra. These fish also appear to have unusually long barbels compared to other mahseer in the area.
There are studies that have looked at the genetics of the Indonesian mahseers (Tor tambra, Tor tambroides and Tor douronensis) [7] [8] but with the exception of Walton's study of Tor tambra [3] none of the known studies have made comparisons with specimens collected from the type locality. Therefore, the specimens studied cannot be validated as the species named. The only way that the validity of Tor douronensis can be moved forward is by a concerted study in the river basin of the type locality.

Localities

In Indonesia this fish is locally known as ikan semah,kancra bodas, or ikan dewa (god's fish). It is rarely found in rivers and ponds in Indonesia, especially in Java, Sumatera and Borneo. Because of its rarity, the Sundanese people consider it as a sacred fish. It can be found in rivers and ponds around Mount Cereme, West Java, such as Cibulan, Cigugur, Pasawahan, Linggajati, dan Darmaloka sacred ponds. [9] Because of its rarity in Indonesia, the Indonesian Institute of Sciences considering to propose to CITES to give it the status as protected endangered species. [10]

In Thailand, this fish is known as pla pluang chomphu or pla vien chomphu (Thai : ปลาพลวงชมพู, ปลาเวียนชมพู; lit: pink mahseer, pink brook carp) by the colour of the scales and fins are light red or pink. In 1981, this species was in an endangered status. Due to the habitat was destroyed from the Bang Lang Dam, the new dam was built. Subsequently, specimens were collected from nature for breeding. Which was successful, but it also yields less. In the year of 1999, Queen Sirikit proceeded to the Bang Lang Dam and released the fish back to nature. Later, she had the initiative to find fish to farm on the Royal Project. It can be grown in large quantities nowadays by Yala Inland Fisheries Station under Department of Fisheries. [11] Presently, this fish has a very expensive price. They sell at 2,000 baht (about US$60) per kg. and in Hong Kong at 8,000 baht per kg. (US$242). [12]

See also

Related Research Articles

<i>Tor</i> (fish) Genus of fishes

Tor is a genus of cyprinid fish commonly known as mahseers.

<span class="mw-page-title-main">Mahseer</span> Common name for several genera of carp

Mahseer is the common name used for the genera Tor, Neolissochilus, Naziritor and Parator in the family Cyprinidae (carps). The name is, however, more often restricted to members of the genus Tor. The range of these fish is from Vietnam in the east and China in the north, through Laos, Cambodia, Thailand, Malaysia, Brunei and Indonesia, and across southern Asia including the countries of India, Nepal, Bhutan and Bangladesh within the Indian Peninsula, plus Sri Lanka, Pakistan and Afghanistan. They are commercially important game fish, as well as highly esteemed food fish. Mahseer fetch high market price, and are potential candidate species for aquaculture. Several of the larger species have suffered severe declines, and are now considered threatened due to pollution, habitat loss, overfishing and increasing concern about the impacts of unregulated release of artificially bred stock of a very limited number of species.

<i>Rasbora</i> Genus of fishes

Rasbora is a genus of fish in the family Cyprinidae. They are native to freshwater habitats in South and Southeast Asia, as well as southeast China. A single species, R. gerlachi, is only known from an old specimen that reputedly originated from Africa (Cameroon), but this locality is considered doubtful. They are small, up to 17 cm (6.7 in) long, although most species do not surpass 10 cm (4 in) and many have a dark horizontal stripe.

<i>Wallago attu</i> Species of fish

Wallago attu is a freshwater catfish of the family Siluridae, native to South and Southeast Asia. It is commonly known as helicopter catfish or wallago catfish. It has known by various names in different regions and languages, such as Borali (বৰালি) in Assamese, Tamil ஆத்துவாளை , Manipuri Sareng,Mizo:Thaichhawninu, the Odisha Balia (ବାଳିଆ), the Bengal Boal, Vietnamese : Cá leo the Sylheti Gual or the Malaysian and Indonesian Tapah are also occasionally used in English. W. attu is found in large rivers and lakes in two geographically disconnected regions, with one population living over much of the Indian Subcontinent and the other in parts of Southeast Asia. The species can reach a maximum length of 2 m.

<span class="mw-page-title-main">Tor khudree</span> Species of fish

Tor khudree, the Deccan mahseer, Khudree mahseer, or black mahseer, is a freshwater fish of the carp family found in major rivers and reservoirs of India and Sri Lanka. Found throughout India, following large-scale introductions of artificially-bred fish across the country, but found of the largest size and in the greatest abundance in mountain or rocky streams.
The fish as originally described by Sykes in his November 1838 paper 'On the Fishes of the Dukhun' as Barbus khudree, is a silvery-bluish coloured fish, with blood red fins or fins tipped with a bluish tinge. The type locality is the Mula-Mutha River close to the Indian city of Pune, a part of the Krishna River basin.
Although there have been efforts to artificially breed this mahseer since the early1970's, there is no way to determine if these fish are Tor khudree, as the populations within the type locality have gone extinct.

<i>Hemibagrus</i> Genus of fishes

Hemibagrus is a genus of catfishes of the family Bagridae.

<i>Neolissochilus</i> Genus of fishes

Neolissochilus is a genus of fish in the family Cyprinidae native to freshwater habitats in Asia that are often grouped with the mahseers. The largest reach up to 1.2 m (3.9 ft) in length, but most species are much smaller.

<span class="mw-page-title-main">Toli shad</span> Species of fish

The toli shad or Chinese herring is a fish of the family Clupeidae, a species of shad distributed in the western Indian Ocean and the Bay of Bengal to the Java Sea and the South China Sea. It may be found in Mauritius and the Cambodian Mekong near the Vietnam border. It inhabits fast-flowing, turbid estuaries and adjacent coastal waters.

<i>Crossocheilus</i> Genus of fishes

Crossocheilus, also known as the fringe barbs, flying foxes, or "algae eaters", is a genus of fish in the family Cyprinidae. It is distributed in China, India, Indonesia, Malaysia and Thailand in Asia. These fish occur in several types of habitat, often fast-flowing rivers with rocky bottoms.

Crossocheilus elegans is a fish species in the genus Crossocheilus from northern Borneo, Indonesia. Its distribution is the Segama and Kinabatangan River drainages in Sabah, Malaysia.

Datnioides microlepis, also known as the Indonesian tiger perch, Indo datmoid, Indonesian tigerfish, or finescale tigerfish, is a species of freshwater fish endemic to the Malay Peninsula and Indonesia. Previous records from the Chao Phraya and Mekong rivers is due to confusion with the D. pulcher, which was included in D. microlepis until 1998. It reaches up to 45 cm in length. This fish is commonly seen in the aquarium trade, and often is seen when juvenile about 3–4 in (8–10 cm) long.

<i>Tor tambroides</i> Species of fish

Tor tambroides, known as empurau in Malay, is a species of mahseer native to Southeast Asia.

Tor sinensis, the Chinese or Red mahseer is a species of mahseer native to the Mekong River. It is known with certainty only from Yunnan, China; reports from Cambodia, Laos, and Thailand require confirmation.
It is one of four currently valid species described from China, the others being Tor laterivittatus, Tor polylepis, and Tor yingjiangensis.

<i>Lepidocephalichthys hasselti</i> Species of fish

Lepidocephalichthys hasselti is a species of cobitid loach native to southeastern Asia and western Indonesia. This species reaches a length of 45 millimetres (1.8 in) TL.

<i>Hemibagrus nemurus</i> Species of fish

Hemibagrus nemurus is a species of catfishes of the genus Hemibagrus in the family Bagridae. After a major review by Ng and Kottelat (2013), its distribution is believed to be confined (endemic) to Java. It is found in Sumatra in the Bukit Tigapuluh National Park in 2016, too. These catfish are found in Malaysia, Indonesia, Java, Sumatra, Borneo and Thailand.

Fang Fang Kullander, née Fang Fang, was a Swedish-Chinese ichthyologist.

<i>Tor tambra</i> Species of fish

Tor tambra, the Javan mahseer, is a species of mahseer native to Southeast Asia.

Tor ater, the dark mahseer, is a species of mahseer, a fish, native to Central Laos.

Tor barakae is a species of mahseer native to Manipur, India.

References

  1. Froese, Rainer; Pauly, Daniel (eds.) (2006). "Tor douronensis" in FishBase. April 2006 version.
  2. Fowler, Henry (1939). "Zoological Results of the Third de Schauensee Siamese Expedition. Part XI. - Additional Fishes Obtained in 1936". Proceedings of the Academy of Natural Sciences of Philadelphia. Vol. 91. ISBN   9781437954920.
  3. 1 2 Walton, S. E.; Gan, H. M.; Raghavan, R.; Pinder, A. C.; Ahmad, A. (2017). "Disentangling the Taxonomy of the Mahseers (Tor SPP.) of Malaysia: An Integrated Approach Using Morphology, Genetics and Historical Records". Reviews in Fisheries Science & Aquaculture. 25 (3): 171–183. doi:10.1080/23308249.2016.1251391. S2CID   90763858.
  4. Roberts, T. R. (1999). "Fishes of the Cyprinid Genus Tor in the Nam Theun Watershed (Mekong Basin) of Laos, with Description of a New Species". The Raffles Bulletin of Zoology. 47 (1): 225–236. S2CID   131035847.
  5. Keat-Chuan Ng, Casey; Abdullah, Fatimah; Biun, Helena; Ibrahim, Mohammad Khadafi; Mustapha, Shuhadah; Sade, Ahemad (2017). "Review: A working checklist of the freshwater fish diversity for habitat management and conservation work in Sabah, Malaysia, North Borneo". Biodiversitas Journal of Biological Diversity. 18 (2): 560–574. doi: 10.13057/biodiv/d180217 .
  6. Maurice Kottelat. "The fishes of the inland waters of Southeast Asia: A catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries". The Raffles Bulletin of Zoology (Suppl. 27): 1–663.
  7. Esa, Y.; et al. "Mitochondrial DNA Diversity of Tor douronensis Valenciennes (Cyprinidae) in Malaysian Borneo". Pertanika Journal of Tropical Agricultural Science. 29 (1–2): 47–55.
  8. Esa, Y. B.; et al. "Molecular Systematics of Mahseers (Cyprinidae) in Malaysia Inferred from Sequencing of a Mitochondrial Cytochrome C Oxidase I (COI) Gene". Pertanika Journal of Tropical Agricultural Science. 31 (2): 263–269.
  9. ""Ikan Dewa" dari Ciremai" (in Indonesian). Kompas.com. 28 January 2014. Retrieved 6 February 2014.
  10. "LIPI Lakukan Penelitian Mengenai Ikan Dewa Ceremai" (in Indonesian). Ikan Dewa. Retrieved 6 February 2014.
  11. "สมเด็จพระเทพรัตนราชสุดาฯ สยามบรมราชกุมารี ทรงเปิดงานสีสรรพรรณไม้ เทิดไท้บรมราชินีนาถ ครั้งที่ 8". The Government Public Relations Department (in Thai). 2014-08-08. Retrieved 2018-10-09.
  12. ศิริพัฒน์, ชาติชาย (2016-09-16). "ปลาพลวงชมพู เลี้ยงได้...กิโลละ 2 พัน". Thai Rath (in Thai). Retrieved 2018-10-09.