Eptatretus ancon

Eptatretus ancon (Mok, Saavedra-Díaz & Acero P., 2001)

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drawing shows typical species in Myxinidae.

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Myxini (slijmprikken) (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures] (See ETYFish)ancon: Named for the research vessel B/I Ancon, from which holotype was captured (See ETYFish).
Eponymy: This refers to the research vessel ‘Ancon’ from which the holotype was collected in the Caribbean. (Ref. 128868), visit book page.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien bathydemersaal; standvastig; diepte ? - 488 m (Ref. 41105). Deep-water

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Western Central Atlantic: off La Punta de los Remedios, Caribbean Sea.

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 22.0 cm TL mannelijk / geslacht onbekend; (Ref. 41105)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

External aperture of its last efferent gill duct and pharyngocutaneous duct separated. Gill apertures nonlinear and crowded. Lengths of efferent gill ducts unequal with anterior ones much longer with length of first about 3 times that of last. Gill apertures 6. Slime pores: prebranchial 26; branchial 0; trunk 45; tail 9; total 80. Caudal and ventral finfold not well developed. Head, body, tail and finfold uniformly light brown in alcohol; eyespots faint, gill aperture margins not pale. Ventral aorta bifurcated between the fourth and fifth gill pouches (Ref. 41105).
Body shape (shape guide): eel-like.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Iteroparous (Ref. 94918).

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

Iteroparous (Ref. 94918). Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies (Ref. 51361 ).

Hoofdreferentie Upload uw referenties | Referenties | Coördinator | Medewerkers

Mok, H.-K., L.M. Saavedra-Diaz and A.P. Acero, 2001. Two new species of Eptatretus and Quadratus (Myxinidae, Myxiniformes) from the Caribbean Coast of Colombia. Copeia 2001(4):1026-1033. (Ref. 41105)

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

  Onvoldoende gegevens (DD) ; Date assessed: 11 November 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van geen belang
FAO - Publication: search | FishSource |

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00204 (0.00095 - 0.00440), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau
(Ref. 69278)
3.9   ±0.7 se; based on size and trophs of closest relatives
Weerstandsvermogen
(Ref. 120179)
laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Kwetsbaarheid van de visserij
(Ref. 59153)
Low vulnerability (24 of 100). 🛈