Aenigmachanna gollum, Gollum snakehead

Aenigmachanna gollum Britz, Anoop, Dahanukar & Raghavan, 2019

Gollum snakehead
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drawing shows typical species in Aenigmachannidae.

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> Anabantiformes (Gouramies, snakeheads) > Aenigmachannidae (Gollum snakehead fishes)
Etymology: Aenigmachanna: Name from Latin word 'aenigma', for enigma, and Channa, the genus name of Asian snakeheadsgollum: Named after the character from J. R. R. Tolkien’s books ‘The Hobbit’ and ‘The Lord of the Rings’. Gollum is a creature that went underground and during its subterranean life changed its morphological features; noun in apposition.
Eponymy: The genus and these species are named after the fictional character, Gollum, in J R R Tolkien’s The Hobbit and Lord of the Rings. [...] (Ref. 128868), visit book page.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

; zoet water benthopelagisch. Tropical

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Asia: India.

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 12.7 cm SL mannelijk / geslacht onbekend; (Ref. 120659)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

This species is distinguished from species of Channa and Parachanna by the following unique characters among channids: very slender with maximum body depth only 11.1-11.3% SL; eel-like body with head length only 20.8-21.6% SL; a large mouth with jaw length 60.4-61.1 % HL; A 43-44; absence of a body lateral line with pored scales; scales in a lateral series 83-85; colour pattern and absence of buoyancy; differs from other channids by having 64 vertebrae, D 56-57, and absence of pelvic fins (Ref. 120401).
Cross section: circular.

Biologie     Verklarende woordenlijst (bv. epibenthic)

The fish collected from Malappuram was in a paddy field (Ref. 120401). The fish collected from Peringara was found, at the height of summer, with the water surface in the well was at a depth of about 5 metres below the ground surface; it came to light when the water in the well, normally clear, suddenly turned muddy and the well was drained to facilitate cleaning. Peringara is situated in a large natural wetland that abuts the Kuttanad lowlands, kniwn as ‘the rice bowl’ of Kerala (Ref. 120659).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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Britz, R., V.K. Anoop, N. Dahanukar and R. Raghavan, 2019. The subterranean Aenigmachanna gollum, a new genus and species of snakehead (Teleostei: Channidae) from Kerala, South India. Zootaxa 4603(2):377-388. (Ref. 120401)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))

  Kwetsbaar (VU) (B1ab(ii,iii)+2ab(ii,iii)); Date assessed: 28 February 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisch niveau
(Ref. 69278)
3.4   ±0.5 se; based on size and trophs of closest relatives
Kwetsbaarheid van de visserij
(Ref. 59153)
Low vulnerability (10 of 100). 🛈