Anguilla bengalensis

The mottled eel[3] (Anguilla bengalensis), also known as the African mottled eel, the Indian longfin eel, the Indian mottled eel, the long-finned eel or the river eel,[4] is a demersal, catadromous[5] eel in the family Anguillidae.[6] It was described by John McClelland in 1844.[7] It is a tropical, freshwater eel which is known from East Africa, Bangladesh, Andaman Islands, Mozambique, Malawi, Sri Lanka, Sumatra, and Indonesia and recently from Madagascar.[8] The eels spend most of their lives in freshwater at a depth range of 3–10 metres, but migrate to the Indian Ocean to breed. Males can reach a maximum total length of 121 centimetres and a maximum weight of 7,000 grams.[6] The eels feed primarily off of benthic crustaceans, mollusks, finfish and worms.[9]

Anguilla bengalensis
A. b. bengalensis

Near Threatened  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Anguilliformes
Family: Anguillidae
Genus: Anguilla
Species:
A. bengalensis
Binomial name
Anguilla bengalensis
(J. E. Gray, 1831)
Subspecies

A. b. bengalensis
A. b. labiata

Synonyms[2]
  • Anguilla nebulosa nebulosa McClelland, 1844
  • Anguilla elphinstonei Sykes, 1839
  • Muraena maculata (non Lacepède, 1800)
  • Anguilla bengalensis (non Gray, 1831)

The exact classification of the species was a debate in recent times, where some major fish websites (ex. Fish Base) classified the species under the name A. nebulosa. But according to the IUCN Red List 2015 version, the fish species should be classified as A. bengalensis with some subspecies.[10]

Subspecies
gollark: Okay, that did *not* work.
gollark: =tex \int_0^5 x^2 dx
gollark: We have MathBot.
gollark: Yes, inasmuch as far as I know you need various more advanced calculus things to do much of that, as well as large quantities of other maths you don't appear to know.
gollark: One basic use is that you can calculate the rate of change of things, because that's basically what the derivative is. For example, velocity is rate of change of displacement, so you can go from displacement to velocity (to acceleration, which is rate of change of velocity, and so on), or integrate to go the other way.

References
  1. Jacoby, D.; Harrison, I.J. & Gollock, M. (2014). "Anguilla bengalensis". IUCN Red List of Threatened Species. 2014. Retrieved 30 June 2014.CS1 maint: ref=harv (link)
  2. Synonyms of Anguilla nebulosa Archived 2016-03-08 at the Wayback Machine at www.fishbase.org.
  3. "Long-finned eel (Anguilla nebulosa) longevity, ageing, and life history".
  4. Common names for Anguilla nebulosa Archived 2016-03-10 at the Wayback Machine at www.fishbase.org.
  5. http://thewebsiteofeverything.com/animals/fish/Anguilliformes/Anguillidae/Anguilla-nebulosa
  6. Anguilla nebulosa Archived 2013-04-12 at Archive.today at www.fishbase.org.
  7. McClelland, J., 1844 (5 July) [ref. 2928] Apodal fishes of Bengal. Calcutta Journal of Natural History v. 5 (no. 18): 151-226, Pls. 5-14.
  8. Frost, Winifred E.; IMAMURA K (1957). "First Record of the Elver of the African Eel Anguilla nebulosa labiata Peters". Nature. 179 (4559): 594–5. Bibcode:1957Natur.179..594F. doi:10.1038/179594a0. PMID 13418745.
  9. Food items reported for Anguilla nebulosa at www.fishbase.org.
  10. Pike, C.; Crook, V.; Gollock, M.; Jacoby, D. (2019). "Anguilla bengalensis". IUCN Red List of Threatened Species. 2019: e.T61668607A96227813. doi:10.2305/IUCN.UK.2019-3.RLTS.T61668607A96227813.en. Retrieved 9 January 2020.
  11. Froese, Rainer, and Daniel Pauly, eds. (2006). Anguilla bengalensis bengalensis in FishBase. 05 2006 version.
  12. Froese, Rainer, and Daniel Pauly, eds. (2006). Anguilla bengalensis labiata in FishBase. 05 2006 version.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.