Siamese tigerfish

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Siamese tigerfish
Tigerfish037.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Spariformes
Family: Lobotidae
Genus: Datnioides
Species:
D. pulcher
Binomial name
Datnioides pulcher
(Kottelat, 1998)
Synonyms [2]
  • Coius pulcherKottelat, 1998

The Siamese tigerfish (Datnioides pulcher), also known as the Siamese tiger perch, is a species of ray-finned fish belonging to the family Lobotidae, the tripletails and tiger perches. This fish is endemic to Indochina and is assessed as Critically Endangered by the IUCN.

Contents

Taxonomy

The Siamese tigerfish was first formally described as Coius pulcher in 1998 by the Swiss ichthyologist Maurice Kottelat with its type locality given as Bung Borapet in Thailand. [3] Following his description of C. pulcher Kottelat determined that the type species of the genus Coius, Coius cobojius, was a junior synonym of Anabas testudineus so Coius is a junior synonym of Anabas , with Datnioides being the correct name for the tiger perch genus. [4] The Siamese tigerfish and the finescale tiger perch ( D. microlepis ) were considered to be conspecific as D. microlepis until Kottelat described D. pulcher. [5] [6] The 5th edition of the Fishes of the World classifies this genus as one of two genera in the family Lobotidae, alongside the tripletails in the genus Lobotes , which it places in the order Spariformes. [7]

Etymology

The Siamese tigerfish has the specific name pulcher, meaning "beautiful", a choice Kottelat did not explain but is thought to be an allusion to its barred colour pattern. [8]

Description

The Siamese tigerfish has the toothless palatine and vomer characteristic of the tiger perches, as is the rounded caudal fin is rounded and rounded lobes on the anal and second dorsal fins creating the appearance of having three caudal fins. [9] This species has 4, occasionally 5, wide vertical bars on the orange-brown body. The first bar runs from the nape over the operculum and onto the thorax and around the lower surface of the body, the second starts at the base of the spiny part of the dorsal fin to immediately in front of the origin of the anal fin, the thirds extends from the join of the spint and sift rayed parts of the dorsal in to the soft rayed part of the anal fin and the fourth bar is on the rear part of the caudal peduncle. The area of the back in front of the origin of the dorsal fin is straight. [10] This species has a maximum published standard length of 40 cm (16 in). [2]

Distribution and habitat

The Siamese tigerfish is endemic to Indochina where it is found in the basins of the Mekong and Chao Praya rivers, east to the middle and lower Mekong in Laos, Cambodia and Vietnam. It has been extirpated from Thailand. This is a freshwater fish found in the main rivers, tributaries and lakes connected to rivers. It prefers areas with submerged wood and rocks with crevices. [1]

Biology

The Siamese tigerfish is a predatory species, fish and shrimp make up most of its diet. [2]

Conservation

The Siamese tigerfish was targeted by fishers as a food fish in Thailand and Cambodia but was a valued aquarium fish and was mainly fished for export in this trade. This, combined with damming of the watercourses it lives in, has caused drastic declines in its population. It has been locally extinct in Thailand since the 1990s and only Vietnam, occasionally exports live specimens into the trade. The IUCN assess this species as Critically Endangered. [1] There have been attempts to breed this fish in captivity. [11]

See also

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References

  1. 1 2 3 Vidthayanon, C. (2011). "Datnioides pulcher". IUCN Red List of Threatened Species . 2011: e.T180969A7656475. doi: 10.2305/IUCN.UK.2011-1.RLTS.T180969A7656475.en . Retrieved 19 November 2021.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2023). "Datnioides pulcher" in FishBase. June 2023 version.
  3. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Datnioides". Catalog of Fishes . California Academy of Sciences . Retrieved 29 October 2023.
  4. Maurice Kottelat (2000). "The type species of the genus-group names Coius Hamilton, 1822 and Datnia Cuvier, 1829 and the type-genus of the family-group name Datnioididae Bleeker, 1858". Journal of South-east Asian Natural History. 5 (1): 91–94.
  5. Kottelat, M. (1998). "Fishes of the Nam Theun and Xe Bangfai basins, Laos, with diagnoses of twenty-two new species (Teleostei: Cyprinidae, Balitoridae, Cobitidae, Coiidae and Odontobutidae". Ichthyological Exploration of Freshwaters. 9 (1): 1–128.
  6. Kottelat, M. (2013). "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". Raffles Bulletin of Zoology. 27: 1–663.
  7. Nelson, J.S.; Grande, T.C.; Wilson, M.V.H. (2016). Fishes of the World (5th ed.). Hoboken, NJ: John Wiley & Sons. pp. 502–506. doi:10.1002/9781119174844. ISBN   978-1-118-34233-6. LCCN   2015037522. OCLC   951899884. OL   25909650M.
  8. "Series EUPERCARIA (Incertae sedis): Families CALLANTHIIDAE, CENTROGENYIDAE, DINOPERCIDAE, EMMELICHTHYIDAE, MALACANTHIDAE, MONODACTYLIDAE, MORONIDAE, PARASCORPIDIDAE, SCIAENIDAE and SILLAGINIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. 9 March 2023. Retrieved 29 October 2023.
  9. Froese, Rainer, and Daniel Pauly, eds. (2023). "Datnioididae" in FishBase . June 2023 version.
  10. "Datnioides pulcher (KOTTELAT, 1998) Siamese Tiger Perch". SeriouslyFish. Retrieved 29 October 2023.
  11. "Siamese Tiger Perch Datnioides pulcher". Asian SpeciesAction Partnership. Retrieved 29 October 2023.