"Channa orientalis" redirects here. Not to be confused with Canna orientalis.
The Ceylon snakehead (Channa orientalis) is a species of snakehead found in freshwater habitats, typically shaded streams, in southwestern Sri Lanka (although occasionally claimed to occur in other countries, this is misidentifications of relatives, usually C. gachua).[2][3]
C. orientalis has a standard length of up to 10 cm (4 in) and is one of the smallest species in the family, making it a dwarf snakehead.[3] It lacks pelvic fins and this distinguishes it from some of its relatives, including C. gachua, a widespread species that also occurs in Sri Lanka (although the Sri Lankan population possibly should be recognized as a species of its own, C. kelaartii).[2] A few other dwarf snakeheads from the Asian mainland, like C. andrao, also lack pelvic fins, but (in addition to distribution) these can be separated by meristics and colour pattern.[4]
A genetic study published in 2017 revealed that C. orientalis includes two deeply separated lineages.[2]
They are predatory fish that feed on plankton, insects, and sometimes small amphibians. They can breathe on land for short periods of time because they have accessory respiratory organs through which they can use atmospheric oxygen to breathe. During wet weather, they can survive on land for more than four days, but if their bodies dry up, they die because it becomes difficult for them to exchange atmospheric oxygen. The Ceylon snakehead is a mouth brooder like many Channa species. The male carries the eggs while the female guards the territory. The male is less active during this period and is often seen close to the surface. The fry remain with the male until they can take care of themselves. Females may catch stray fry and return them to the mouth of the male. The fry are ejected via the gill openings.
Referencesedit
^ abde Alwis Goonatilake, S.; Kotagama, O.; Fernado, M. (2019). "Channa orientalis". IUCN Red List of Threatened Species. 2019: e.T166584A174828855. doi:10.2305/IUCN.UK.2019-3.RLTS.T166584A174828855.en. Retrieved 19 November 2021.
^ abcConte-Grand, C., Britz, R., Dahanukar, N., Raghavan, R., Pethi-yagoda, R., Tan, H.H., Hadiaty, R.K., Yaakob, N.S. & Rüber, L. (2017). Barcoding snakeheads (Teleostei, Channidae) re-visited: Discovering greater species diversity and resolving perpetuated taxonomic confusions. PLoS ONE, 12 (9): e0184017.
^ abcSeriouslyFish: Channa orientalis. Retrieved 12 February 2019.
^Britz, R. (2013): Channa andrao, a new species of dwarf snakehead from West Bengal, India (Teleostei: Channidae). Zootaxa, 3731 (2): 287–294.
This Anabantiformes-related article is a stub. You can help Wikipedia by expanding it.
ceylon, snakehead, channa, orientalis, redirects, here, confused, with, canna, orientalis, channa, orientalis, species, snakehead, found, freshwater, habitats, typically, shaded, streams, southwestern, lanka, although, occasionally, claimed, occur, other, coun. Channa orientalis redirects here Not to be confused with Canna orientalis The Ceylon snakehead Channa orientalis is a species of snakehead found in freshwater habitats typically shaded streams in southwestern Sri Lanka although occasionally claimed to occur in other countries this is misidentifications of relatives usually C gachua 2 3 Ceylon snakeheadConservation statusVulnerable IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ActinopterygiiOrder AnabantiformesFamily ChannidaeGenus ChannaSpecies C orientalisBinomial nameChanna orientalisBloch amp J G Schneider 1801It is evaluated as Vulnerable by the IUCN 1 and some do consider C orientalis as a threatened species 3 Description editC orientalis has a standard length of up to 10 cm 4 in and is one of the smallest species in the family making it a dwarf snakehead 3 It lacks pelvic fins and this distinguishes it from some of its relatives including C gachua a widespread species that also occurs in Sri Lanka although the Sri Lankan population possibly should be recognized as a species of its own C kelaartii 2 A few other dwarf snakeheads from the Asian mainland like C andrao also lack pelvic fins but in addition to distribution these can be separated by meristics and colour pattern 4 A genetic study published in 2017 revealed that C orientalis includes two deeply separated lineages 2 Behavior editThis section includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help to improve this section by introducing more precise citations February 2019 Learn how and when to remove this template message They are predatory fish that feed on plankton insects and sometimes small amphibians They can breathe on land for short periods of time because they have accessory respiratory organs through which they can use atmospheric oxygen to breathe During wet weather they can survive on land for more than four days but if their bodies dry up they die because it becomes difficult for them to exchange atmospheric oxygen The Ceylon snakehead is a mouth brooder like many Channa species The male carries the eggs while the female guards the territory The male is less active during this period and is often seen close to the surface The fry remain with the male until they can take care of themselves Females may catch stray fry and return them to the mouth of the male The fry are ejected via the gill openings References edit a b de Alwis Goonatilake S Kotagama O Fernado M 2019 Channa orientalis IUCN Red List of Threatened Species 2019 e T166584A174828855 doi 10 2305 IUCN UK 2019 3 RLTS T166584A174828855 en Retrieved 19 November 2021 a b c Conte Grand C Britz R Dahanukar N Raghavan R Pethi yagoda R Tan H H Hadiaty R K Yaakob N S amp Ruber L 2017 Barcoding snakeheads Teleostei Channidae re visited Discovering greater species diversity and resolving perpetuated taxonomic confusions PLoS ONE 12 9 e0184017 a b c SeriouslyFish Channa orientalis Retrieved 12 February 2019 Britz R 2013 Channa andrao a new species of dwarf snakehead from West Bengal India Teleostei Channidae Zootaxa 3731 2 287 294 nbsp This Anabantiformes related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Ceylon snakehead amp oldid 1085317231, wikipedia, wiki, book, books, library,
